示例#1
0
        /// <summary>
        /// Counts all the number of data from the database table.
        /// </summary>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="request">The actual <see cref="CountAllRequest"/> object.</param>
        /// <param name="param">The mapped object parameters.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <returns>An integer value that holds the number of data from the database.</returns>
        internal static long CountAllInternalBase(this IDbConnection connection,
                                                  CountAllRequest request,
                                                  object param,
                                                  int?commandTimeout         = null,
                                                  IDbTransaction transaction = null,
                                                  ITrace trace = null)
        {
            // Variables
            var commandType = CommandType.Text;
            var commandText = CommandTextCache.GetCountAllText(request);

            // Before Execution
            if (trace != null)
            {
                var cancellableTraceLog = new CancellableTraceLog(commandText, param, null);
                trace.BeforeCountAll(cancellableTraceLog);
                if (cancellableTraceLog.IsCancelled)
                {
                    if (cancellableTraceLog.IsThrowException)
                    {
                        throw new CancelledExecutionException(commandText);
                    }
                    return(default(int));
                }
                commandText = (cancellableTraceLog.Statement ?? commandText);
                param       = (cancellableTraceLog.Parameter ?? param);
            }

            // Before Execution Time
            var beforeExecutionTime = DateTime.UtcNow;

            // Actual Execution
            var result = ExecuteScalarInternal <long>(connection: connection,
                                                      commandText: commandText,
                                                      param: param,
                                                      commandType: commandType,
                                                      commandTimeout: commandTimeout,
                                                      transaction: transaction,
                                                      skipCommandArrayParametersCheck: true);

            // After Execution
            if (trace != null)
            {
                trace.AfterCountAll(new TraceLog(commandText, param, result,
                                                 DateTime.UtcNow.Subtract(beforeExecutionTime)));
            }

            // Result
            return(result);
        }
示例#2
0
        /// <summary>
        /// Deletes an existing data from the database in an asynchronous way.
        /// </summary>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="request">The actual <see cref="DeleteRequest"/> object.</param>
        /// <param name="param">The mapped object parameters.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <returns>The number of rows affected by the execution.</returns>
        internal static async Task <int> DeleteAsyncInternalBase(this IDbConnection connection,
                                                                 DeleteRequest request,
                                                                 object param,
                                                                 int?commandTimeout         = null,
                                                                 IDbTransaction transaction = null,
                                                                 ITrace trace = null)
        {
            // Variables
            var commandType = CommandType.Text;
            var commandText = CommandTextCache.GetDeleteText(request);

            // Before Execution
            if (trace != null)
            {
                var cancellableTraceLog = new CancellableTraceLog(commandText, param, null);
                trace.BeforeDelete(cancellableTraceLog);
                if (cancellableTraceLog.IsCancelled)
                {
                    if (cancellableTraceLog.IsThrowException)
                    {
                        throw new CancelledExecutionException(commandText);
                    }
                    return(0);
                }
                commandText = (cancellableTraceLog.Statement ?? commandText);
                param       = (cancellableTraceLog.Parameter ?? param);
            }

            // Before Execution Time
            var beforeExecutionTime = DateTime.UtcNow;

            // Actual Execution
            var result = await ExecuteNonQueryAsyncInternal(connection : connection,
                                                            commandText : commandText,
                                                            param : param,
                                                            commandType : commandType,
                                                            commandTimeout : commandTimeout,
                                                            transaction : transaction,
                                                            skipCommandArrayParametersCheck : true);

            // After Execution
            if (trace != null)
            {
                trace.AfterDelete(new TraceLog(commandText, param, result,
                                               DateTime.UtcNow.Subtract(beforeExecutionTime)));
            }

            // Result
            return(result);
        }
示例#3
0
        /// <summary>
        /// Truncates a table from the database in an asynchronous way.
        /// </summary>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="request">The actual <see cref="TruncateRequest"/> object.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <param name="cancellationToken">The <see cref="CancellationToken"/> object to be used during the asynchronous operation.</param>
        /// <returns>The number of rows affected.</returns>
        internal static async Task <int> TruncateAsyncInternalBase(this IDbConnection connection,
                                                                   TruncateRequest request,
                                                                   int?commandTimeout         = null,
                                                                   IDbTransaction transaction = null,
                                                                   ITrace trace = null,
                                                                   CancellationToken cancellationToken = default)
        {
            // Variables
            var commandType = CommandType.Text;
            var commandText = CommandTextCache.GetTruncateText(request);
            var sessionId   = Guid.Empty;

            // Before Execution
            if (trace != null)
            {
                sessionId = Guid.NewGuid();
                var cancellableTraceLog = new CancellableTraceLog(sessionId, commandText, null, null);
                trace.BeforeTruncate(cancellableTraceLog);
                if (cancellableTraceLog.IsCancelled)
                {
                    if (cancellableTraceLog.IsThrowException)
                    {
                        throw new CancelledExecutionException(commandText);
                    }
                }
                commandText = (cancellableTraceLog.Statement ?? commandText);
            }

            // Before Execution Time
            var beforeExecutionTime = DateTime.UtcNow;

            // Actual Execution
            var result = await ExecuteNonQueryAsyncInternal(connection : connection,
                                                            commandText : commandText,
                                                            param : null,
                                                            commandType : commandType,
                                                            commandTimeout : commandTimeout,
                                                            transaction : transaction,
                                                            cancellationToken : cancellationToken,
                                                            entityType : request.Type,
                                                            dbFields : await DbFieldCache.GetAsync(connection, request.Name, transaction, true, cancellationToken),
                                                            skipCommandArrayParametersCheck : true);

            // After Execution
            trace?.AfterTruncate(new TraceLog(sessionId, commandText, null, result,
                                              DateTime.UtcNow.Subtract(beforeExecutionTime)));

            // Return the result
            return(result);
        }
示例#4
0
        /// <summary>
        /// Delete all the rows from the table.
        /// </summary>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="request">The actual <see cref="DeleteAllRequest"/> object.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <returns>The number of rows that has been deleted from the table.</returns>
        internal static int DeleteAllInternalBase(this IDbConnection connection,
                                                  DeleteAllRequest request,
                                                  int?commandTimeout         = null,
                                                  IDbTransaction transaction = null,
                                                  ITrace trace = null)
        {
            // Variables
            var commandType = CommandType.Text;
            var commandText = CommandTextCache.GetDeleteAllText(request);
            var sessionId   = Guid.Empty;

            // Before Execution
            if (trace != null)
            {
                sessionId = Guid.NewGuid();
                var cancellableTraceLog = new CancellableTraceLog(sessionId, commandText, null, null);
                trace.BeforeDeleteAll(cancellableTraceLog);
                if (cancellableTraceLog.IsCancelled)
                {
                    if (cancellableTraceLog.IsThrowException)
                    {
                        throw new CancelledExecutionException(commandText);
                    }
                    return(0);
                }
                commandText = (cancellableTraceLog.Statement ?? commandText);
            }

            // Before Execution Time
            var beforeExecutionTime = DateTime.UtcNow;

            // Actual Execution
            var result = ExecuteNonQueryInternal(connection: connection,
                                                 commandText: commandText,
                                                 param: null,
                                                 commandType: commandType,
                                                 commandTimeout: commandTimeout,
                                                 transaction: transaction,
                                                 skipCommandArrayParametersCheck: true);

            // After Execution
            if (trace != null)
            {
                trace.AfterDeleteAll(new TraceLog(sessionId, commandText, null, result,
                                                  DateTime.UtcNow.Subtract(beforeExecutionTime)));
            }

            // Result
            return(result);
        }
示例#5
0
文件: Truncate.cs 项目: bank2u/RepoDb
        /// <summary>
        /// Truncates a table from the database.
        /// </summary>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="request">The actual <see cref="TruncateRequest"/> object.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <returns>The number of rows affected.</returns>
        internal static int TruncateInternalBase(this IDbConnection connection,
                                                 TruncateRequest request,
                                                 int?commandTimeout         = null,
                                                 IDbTransaction transaction = null,
                                                 ITrace trace = null)
        {
            // Validate
            InvokeValidatorValidateTruncate(connection);

            // Variables
            var commandType = CommandType.Text;
            var commandText = CommandTextCache.GetTruncateText(request);

            // Before Execution
            if (trace != null)
            {
                var cancellableTraceLog = new CancellableTraceLog(commandText, null, null);
                trace.BeforeTruncate(cancellableTraceLog);
                if (cancellableTraceLog.IsCancelled)
                {
                    if (cancellableTraceLog.IsThrowException)
                    {
                        throw new CancelledExecutionException(commandText);
                    }
                }
                commandText = (cancellableTraceLog.Statement ?? commandText);
            }

            // Before Execution Time
            var beforeExecutionTime = DateTime.UtcNow;

            // Actual Execution
            var result = ExecuteNonQueryInternal(connection: connection,
                                                 commandText: commandText,
                                                 param: null,
                                                 commandType: commandType,
                                                 commandTimeout: commandTimeout,
                                                 transaction: transaction,
                                                 skipCommandArrayParametersCheck: true);

            // After Execution
            if (trace != null)
            {
                trace.AfterTruncate(new TraceLog(commandText, null, result,
                                                 DateTime.UtcNow.Subtract(beforeExecutionTime)));
            }

            // Return the result
            return(result);
        }
示例#6
0
        /// <summary>
        /// CountAlls the number of table data from the database in an asynchronous way.
        /// </summary>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="tableName">The name of the target table to be used.</param>
        /// <param name="hints">The table hints to be used. See <see cref="SqlTableHints"/> class.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <param name="statementBuilder">The statement builder object to be used.</param>
        /// <returns>An integer value that holds the number of data from the database.</returns>
        internal static Task <long> CountAllAsyncInternal(this IDbConnection connection,
                                                          string tableName,
                                                          string hints                       = null,
                                                          int?commandTimeout                 = null,
                                                          IDbTransaction transaction         = null,
                                                          ITrace trace                       = null,
                                                          IStatementBuilder statementBuilder = null)
        {
            // Variables
            var request = new CountAllRequest(tableName,
                                              connection,
                                              hints,
                                              statementBuilder);
            var commandText = CommandTextCache.GetCountAllText(request);
            var param       = (object)null;

            // Return the result
            return(CountAllInternalAsyncBase(connection: connection,
                                             request: request,
                                             param: param,
                                             commandTimeout: commandTimeout,
                                             transaction: transaction,
                                             trace: trace));
        }
示例#7
0
        /// <summary>
        /// Inserts multiple data in the database in an asynchronous way.
        /// </summary>
        /// <typeparam name="TEntity">The type of the object (whether a data entity or a dynamic).</typeparam>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="tableName">The name of the target table to be used.</param>
        /// <param name="entities">The list of data entity or dynamic objects to be inserted.</param>
        /// <param name="batchSize">The batch size of the insertion.</param>
        /// <param name="fields">The mapping list of <see cref="Field"/> objects to be used.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <param name="statementBuilder">The statement builder object to be used.</param>
        /// <param name="skipIdentityCheck">True to skip the identity check.</param>
        /// <returns>The number of inserted rows.</returns>
        internal static async Task <int> InsertAllAsyncInternalBase <TEntity>(this IDbConnection connection,
                                                                              string tableName,
                                                                              IEnumerable <TEntity> entities,
                                                                              int batchSize = Constant.DefaultBatchOperationSize,
                                                                              IEnumerable <Field> fields = null,
                                                                              int?commandTimeout         = null,
                                                                              IDbTransaction transaction = null,
                                                                              ITrace trace = null,
                                                                              IStatementBuilder statementBuilder = null,
                                                                              bool skipIdentityCheck             = false)
            where TEntity : class
        {
            // Guard the parameters
            var count = GuardInsertAll(entities);

            // Validate the batch size
            batchSize = Math.Min(batchSize, count);

            // Get the function
            var callback = new Func <int, InsertAllExecutionContext <TEntity> >((int batchSizeValue) =>
            {
                // Variables needed
                var identity        = (Field)null;
                var dbFields        = DbFieldCache.Get(connection, tableName);
                var inputFields     = (IEnumerable <DbField>)null;
                var outputFields    = (IEnumerable <DbField>)null;
                var identityDbField = dbFields?.FirstOrDefault(f => f.IsIdentity);

                // Set the identity value
                if (skipIdentityCheck == false)
                {
                    identity = IdentityCache.Get <TEntity>()?.AsField();
                    if (identity == null && identityDbField != null)
                    {
                        identity = FieldCache.Get <TEntity>().FirstOrDefault(field =>
                                                                             field.UnquotedName.ToLower() == identityDbField.UnquotedName.ToLower());
                    }
                }

                // Filter the actual properties for input fields
                inputFields = dbFields?
                              .Where(dbField => dbField.IsIdentity == false)
                              .Where(dbField =>
                                     fields.FirstOrDefault(field => field.UnquotedName.ToLower() == dbField.UnquotedName.ToLower()) != null)
                              .AsList();

                // Set the output fields
                if (batchSizeValue > 1)
                {
                    outputFields = identityDbField?.AsEnumerable();
                }

                // Variables for the context
                var multipleEntitiesFunc = (Action <DbCommand, IList <TEntity> >)null;
                var identitySettersFunc  = (List <Action <TEntity, DbCommand> >)null;
                var singleEntityFunc     = (Action <DbCommand, TEntity>)null;
                var identitySetterFunc   = (Action <TEntity, object>)null;

                // Get if we have not skipped it
                if (skipIdentityCheck == false && identity != null)
                {
                    if (batchSizeValue <= 1)
                    {
                        identitySetterFunc = FunctionCache.GetDataEntityPropertyValueSetterFunction <TEntity>(identity);
                    }
                    else
                    {
                        identitySettersFunc = new List <Action <TEntity, DbCommand> >();
                        for (var index = 0; index < batchSizeValue; index++)
                        {
                            identitySettersFunc.Add(FunctionCache.GetDataEntityPropertySetterFromDbCommandParameterFunction <TEntity>(identity, identity.UnquotedName, index));
                        }
                    }
                }

                // Identity which objects to set
                if (batchSizeValue <= 1)
                {
                    singleEntityFunc = FunctionCache.GetDataEntityDbCommandParameterSetterFunction <TEntity>(
                        string.Concat(typeof(TEntity).FullName, ".", tableName, ".InsertAll"),
                        inputFields?.AsList(),
                        null);
                }
                else
                {
                    multipleEntitiesFunc = FunctionCache.GetDataEntitiesDbCommandParameterSetterFunction <TEntity>(
                        string.Concat(typeof(TEntity).FullName, ".", tableName, ".InsertAll"),
                        inputFields?.AsList(),
                        outputFields,
                        batchSizeValue);
                }

                // Identify the requests
                var insertAllRequest = (InsertAllRequest)null;
                var insertRequest    = (InsertRequest)null;

                // Create a different kind of requests
                if (typeof(TEntity) == typeof(object))
                {
                    if (batchSizeValue > 1)
                    {
                        insertAllRequest = new InsertAllRequest(tableName,
                                                                connection,
                                                                fields,
                                                                batchSizeValue,
                                                                statementBuilder);
                    }
                    else
                    {
                        insertRequest = new InsertRequest(tableName,
                                                          connection,
                                                          fields,
                                                          statementBuilder);
                    }
                }
                else
                {
                    if (batchSizeValue > 1)
                    {
                        insertAllRequest = new InsertAllRequest(typeof(TEntity),
                                                                connection,
                                                                fields,
                                                                batchSizeValue,
                                                                statementBuilder);
                    }
                    else
                    {
                        insertRequest = new InsertRequest(typeof(TEntity),
                                                          connection,
                                                          fields,
                                                          statementBuilder);
                    }
                }

                // Return the value
                return(new InsertAllExecutionContext <TEntity>
                {
                    CommandText = batchSizeValue > 1 ? CommandTextCache.GetInsertAllText(insertAllRequest) : CommandTextCache.GetInsertText(insertRequest),
                    InputFields = inputFields,
                    OutputFields = outputFields,
                    BatchSize = batchSizeValue,
                    SingleDataEntityParametersSetterFunc = singleEntityFunc,
                    MultipleDataEntitiesParametersSetterFunc = multipleEntitiesFunc,
                    IdentityPropertySetterFunc = identitySetterFunc,
                    IdentityPropertySettersFunc = identitySettersFunc
                });
            });

            // Get the context
            var context = (InsertAllExecutionContext <TEntity>)null;

            // Identify the number of entities (performance), get an execution context from cache
            context = batchSize == 1 ? InsertAllExecutionContextCache <TEntity> .Get(tableName, fields, 1, callback) :
                      InsertAllExecutionContextCache <TEntity> .Get(tableName, fields, batchSize, callback);

            // Before Execution
            if (trace != null)
            {
                var cancellableTraceLog = new CancellableTraceLog(context.CommandText, entities, null);
                trace.BeforeInsertAll(cancellableTraceLog);
                if (cancellableTraceLog.IsCancelled)
                {
                    if (cancellableTraceLog.IsThrowException)
                    {
                        throw new CancelledExecutionException(context.CommandText);
                    }
                    return(0);
                }
                context.CommandText = (cancellableTraceLog.Statement ?? context.CommandText);
                entities            = (IEnumerable <TEntity>)(cancellableTraceLog.Parameter ?? entities);
            }

            // Before Execution Time
            var beforeExecutionTime = DateTime.UtcNow;

            // Execution variables
            var result = 0;

            // Make sure to create transaction if there is no passed one
            var hasTransaction = (transaction != null);

            try
            {
                // Ensure the connection is open
                await connection.EnsureOpenAsync();

                if (hasTransaction == false)
                {
                    // Create a transaction
                    transaction = connection.BeginTransaction();
                }

                // Create the command
                using (var command = (DbCommand)connection.CreateCommand(context.CommandText,
                                                                         CommandType.Text, commandTimeout, transaction))
                {
                    // Directly execute if the entities is only 1 (performance)
                    if (context.BatchSize == 1)
                    {
                        foreach (var entity in entities)
                        {
                            // Set the values
                            context.SingleDataEntityParametersSetterFunc(command, entity);

                            // Actual Execution
                            var returnValue = ObjectConverter.DbNullToNull(await command.ExecuteScalarAsync());

                            // Set the return value
                            if (returnValue != null)
                            {
                                context.IdentityPropertySetterFunc?.Invoke(entity, returnValue);
                            }

                            // Iterate the result
                            result++;
                        }
                    }
                    else
                    {
                        foreach (var batchEntities in entities.Split(batchSize))
                        {
                            var batchItems = batchEntities.AsList();

                            // Break if there is no more records
                            if (batchItems.Count <= 0)
                            {
                                break;
                            }

                            // Check if the batch size has changed (probably the last batch on the enumerables)
                            if (batchItems.Count != batchSize)
                            {
                                // Get a new execution context from cache
                                context = InsertAllExecutionContextCache <TEntity> .Get(tableName, fields, batchItems.Count, callback);

                                // Set the command properties
                                command.CommandText = context.CommandText;

                                // Prepare the command
                                command.Prepare();
                            }

                            // Set the values
                            context.MultipleDataEntitiesParametersSetterFunc(command, batchItems);

                            // Actual Execution
                            result += await command.ExecuteNonQueryAsync();

                            // Set the identities
                            if (context.IdentityPropertySettersFunc != null && command.Parameters.Count > 0)
                            {
                                for (var index = 0; index < batchItems.Count; index++)
                                {
                                    var func = context.IdentityPropertySettersFunc.ElementAt(index);
                                    func(batchItems[index], command);
                                }
                            }
                        }
                    }
                }

                if (hasTransaction == false)
                {
                    // Commit the transaction
                    transaction.Commit();
                }
            }
            catch
            {
                if (hasTransaction == false)
                {
                    // Rollback for any exception
                    transaction.Rollback();
                }
                throw;
            }
            finally
            {
                if (hasTransaction == false)
                {
                    // Rollback and dispose the transaction
                    transaction.Dispose();
                }
            }

            // After Execution
            if (trace != null)
            {
                trace.AfterInsertAll(new TraceLog(context.CommandText, entities, result,
                                                  DateTime.UtcNow.Subtract(beforeExecutionTime)));
            }

            // Return the result
            return(result);
        }
示例#8
0
        /// <summary>
        /// Query all the data from the database.
        /// </summary>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="tableName">The name of the target table.</param>
        /// <param name="fields">The list of fields to be queried.</param>
        /// <param name="orderBy">The order definition of the fields to be used.</param>
        /// <param name="hints">The table hints to be used. See <see cref="SqlTableHints"/> class.</param>
        /// <param name="cacheKey">
        /// The key to the cache. If the cache key is present in the cache, then the item from the cache will be returned instead. Setting this
        /// to null would force to query from the database.
        /// </param>
        /// <param name="cacheItemExpiration">The expiration in minutes of the cache item.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="cache">The cache object to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <param name="statementBuilder">The statement builder object to be used.</param>
        /// <returns>An enumerable list of data entity object.</returns>
        internal static async Task <IEnumerable <dynamic> > QueryAllAsyncInternalBase(this IDbConnection connection,
                                                                                      string tableName,
                                                                                      IEnumerable <Field> fields       = null,
                                                                                      IEnumerable <OrderField> orderBy = null,
                                                                                      string hints                       = null,
                                                                                      string cacheKey                    = null,
                                                                                      int cacheItemExpiration            = Constant.DefaultCacheItemExpirationInMinutes,
                                                                                      int?commandTimeout                 = null,
                                                                                      IDbTransaction transaction         = null,
                                                                                      ICache cache                       = null,
                                                                                      ITrace trace                       = null,
                                                                                      IStatementBuilder statementBuilder = null)
        {
            // Get Cache
            if (cacheKey != null)
            {
                var item = cache?.Get(cacheKey, false);
                if (item != null)
                {
                    return((IEnumerable <dynamic>)item.Value);
                }
            }

            // Check the fields
            if (fields?.Any() != true)
            {
                fields = DbFieldCache.Get(connection, tableName)?.Select(f => f.AsField());
            }

            // Variables
            var commandType = CommandType.Text;
            var request     = new QueryAllRequest(tableName,
                                                  connection,
                                                  fields,
                                                  orderBy,
                                                  hints,
                                                  statementBuilder);
            var commandText = CommandTextCache.GetQueryAllText(request);
            var param       = (object)null;

            // Before Execution
            if (trace != null)
            {
                var cancellableTraceLog = new CancellableTraceLog(commandText, param, null);
                trace.BeforeQueryAll(cancellableTraceLog);
                if (cancellableTraceLog.IsCancelled)
                {
                    if (cancellableTraceLog.IsThrowException)
                    {
                        throw new CancelledExecutionException(commandText);
                    }
                    return(null);
                }
                commandText = (cancellableTraceLog.Statement ?? commandText);
                param       = (cancellableTraceLog.Parameter ?? param);
            }

            // Before Execution Time
            var beforeExecutionTime = DateTime.UtcNow;

            // Actual Execution
            var result = await ExecuteQueryAsyncInternal(connection : connection,
                                                         commandText : commandText,
                                                         param : param,
                                                         commandType : commandType,
                                                         commandTimeout : commandTimeout,
                                                         transaction : transaction,
                                                         tableName : tableName,
                                                         skipCommandArrayParametersCheck : true);

            // After Execution
            if (trace != null)
            {
                trace.AfterQueryAll(new TraceLog(commandText, param, result,
                                                 DateTime.UtcNow.Subtract(beforeExecutionTime)));
            }

            // Set Cache
            if (cacheKey != null)
            {
                cache?.Add(cacheKey, result, cacheItemExpiration);
            }

            // Result
            return(result);
        }
示例#9
0
        /// <summary>
        /// Query all the data from the database.
        /// </summary>
        /// <typeparam name="TEntity">The type of the data entity object.</typeparam>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="orderBy">The order definition of the fields to be used.</param>
        /// <param name="hints">The table hints to be used. See <see cref="SqlTableHints"/> class.</param>
        /// <param name="cacheKey">
        /// The key to the cache. If the cache key is present in the cache, then the item from the cache will be returned instead. Setting this
        /// to null would force to query from the database.
        /// </param>
        /// <param name="cacheItemExpiration">The expiration in minutes of the cache item.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="cache">The cache object to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <param name="statementBuilder">The statement builder object to be used.</param>
        /// <returns>An enumerable list of data entity object.</returns>
        internal static Task <IEnumerable <TEntity> > QueryAllAsyncInternalBase <TEntity>(this IDbConnection connection,
                                                                                          IEnumerable <OrderField> orderBy = null,
                                                                                          string hints                       = null,
                                                                                          string cacheKey                    = null,
                                                                                          int cacheItemExpiration            = Constant.DefaultCacheItemExpirationInMinutes,
                                                                                          int?commandTimeout                 = null,
                                                                                          IDbTransaction transaction         = null,
                                                                                          ICache cache                       = null,
                                                                                          ITrace trace                       = null,
                                                                                          IStatementBuilder statementBuilder = null)
            where TEntity : class
        {
            // Get Cache
            if (cacheKey != null)
            {
                var item = cache?.Get(cacheKey, false);
                if (item != null)
                {
                    return(Task.FromResult((IEnumerable <TEntity>)item.Value));
                }
            }

            // Variables
            var commandType = CommandType.Text;
            var request     = new QueryAllRequest(typeof(TEntity),
                                                  connection,
                                                  FieldCache.Get <TEntity>(),
                                                  orderBy,
                                                  hints,
                                                  statementBuilder);
            var commandText = CommandTextCache.GetQueryAllText(request);
            var param       = (object)null;

            // Database pre-touch for field definitions
            DbFieldCache.Get(connection, ClassMappedNameCache.Get <TEntity>());

            // Before Execution
            if (trace != null)
            {
                var cancellableTraceLog = new CancellableTraceLog(commandText, param, null);
                trace.BeforeQueryAll(cancellableTraceLog);
                if (cancellableTraceLog.IsCancelled)
                {
                    if (cancellableTraceLog.IsThrowException)
                    {
                        throw new CancelledExecutionException(commandText);
                    }
                    return(Task.FromResult <IEnumerable <TEntity> >(null));
                }
                commandText = (cancellableTraceLog.Statement ?? commandText);
                param       = (cancellableTraceLog.Parameter ?? param);
            }

            // Before Execution Time
            var beforeExecutionTime = DateTime.UtcNow;

            // Actual Execution
            var result = ExecuteQueryAsyncInternal <TEntity>(connection: connection,
                                                             commandText: commandText,
                                                             param: param,
                                                             commandType: commandType,
                                                             commandTimeout: commandTimeout,
                                                             transaction: transaction,
                                                             basedOnFields: false,
                                                             skipCommandArrayParametersCheck: true);

            // After Execution
            if (trace != null)
            {
                trace.AfterQueryAll(new TraceLog(commandText, param, result,
                                                 DateTime.UtcNow.Subtract(beforeExecutionTime)));
            }

            // Set Cache
            if (cacheKey != null /* && result.Result?.Any() == true */)
            {
                cache?.Add(cacheKey, result, cacheItemExpiration);
            }

            // Result
            return(result);
        }
示例#10
0
        /// <summary>
        /// Query all the data from the table.
        /// </summary>
        /// <typeparam name="TEntity">The type of the data entity.</typeparam>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="orderBy">The order definition of the fields to be used.</param>
        /// <param name="hints">The table hints to be used.</param>
        /// <param name="cacheKey">
        /// The key to the cache item.By setting this argument, it will return the item from the cache if present, otherwise it will query the database.
        /// This will only work if the 'cache' argument is set.
        /// </param>
        /// <param name="cacheItemExpiration">The expiration in minutes of the cache item.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="cache">The cache object to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <param name="statementBuilder">The statement builder object to be used.</param>
        /// <returns>An enumerable list of data entity objects.</returns>
        internal static IEnumerable <TEntity> QueryAllInternalBase <TEntity>(this IDbConnection connection,
                                                                             IEnumerable <OrderField> orderBy = null,
                                                                             string hints                       = null,
                                                                             string cacheKey                    = null,
                                                                             int cacheItemExpiration            = Constant.DefaultCacheItemExpirationInMinutes,
                                                                             int?commandTimeout                 = null,
                                                                             IDbTransaction transaction         = null,
                                                                             ICache cache                       = null,
                                                                             ITrace trace                       = null,
                                                                             IStatementBuilder statementBuilder = null)
            where TEntity : class
        {
            // Get Cache
            if (cacheKey != null)
            {
                var item = cache?.Get <IEnumerable <TEntity> >(cacheKey, false);
                if (item != null)
                {
                    return(item.Value);
                }
            }

            // Variables
            var commandType = CommandType.Text;
            var request     = new QueryAllRequest(typeof(TEntity),
                                                  connection,
                                                  transaction,
                                                  FieldCache.Get <TEntity>(),
                                                  orderBy,
                                                  hints,
                                                  statementBuilder);
            var commandText = CommandTextCache.GetQueryAllText(request);
            var param       = (object)null;
            var sessionId   = Guid.Empty;

            // Before Execution
            if (trace != null)
            {
                sessionId = Guid.NewGuid();
                var cancellableTraceLog = new CancellableTraceLog(sessionId, commandText, param, null);
                trace.BeforeQueryAll(cancellableTraceLog);
                if (cancellableTraceLog.IsCancelled)
                {
                    if (cancellableTraceLog.IsThrowException)
                    {
                        throw new CancelledExecutionException(commandText);
                    }
                    return(null);
                }
                commandText = (cancellableTraceLog.Statement ?? commandText);
                param       = (cancellableTraceLog.Parameter ?? param);
            }

            // Before Execution Time
            var beforeExecutionTime = DateTime.UtcNow;

            // Actual Execution
            var result = ExecuteQueryInternal <TEntity>(connection: connection,
                                                        commandText: commandText,
                                                        param: param,
                                                        commandType: commandType,
                                                        commandTimeout: commandTimeout,
                                                        transaction: transaction,
                                                        skipCommandArrayParametersCheck: true);

            // After Execution
            if (trace != null)
            {
                trace.AfterQueryAll(new TraceLog(sessionId, commandText, param, result,
                                                 DateTime.UtcNow.Subtract(beforeExecutionTime)));
            }

            // Set Cache
            if (cacheKey != null)
            {
                cache?.Add(cacheKey, result, cacheItemExpiration, false);
            }

            // Result
            return(result);
        }
示例#11
0
        /// <summary>
        /// Inserts a new row in the table in an asynchronous way.
        /// </summary>
        /// <typeparam name="TEntity">The type of the object (whether a data entity or a dynamic).</typeparam>
        /// <typeparam name="TResult">The target type of the result.</typeparam>
        /// <param name="connection">The connection object to be used.</param>
        /// <param name="tableName">The name of the target table to be used.</param>
        /// <param name="entity">The data entity or dynamic object to be inserted.</param>
        /// <param name="fields">The mapping list of <see cref="Field"/> objects to be used.</param>
        /// <param name="hints">The table hints to be used.</param>
        /// <param name="commandTimeout">The command timeout in seconds to be used.</param>
        /// <param name="transaction">The transaction to be used.</param>
        /// <param name="trace">The trace object to be used.</param>
        /// <param name="statementBuilder">The statement builder object to be used.</param>
        /// <param name="skipIdentityCheck">True to skip the identity check.</param>
        /// <returns>The value of the identity field if present, otherwise, the value of the primary field.</returns>
        internal async static Task <TResult> InsertAsyncInternalBase <TEntity, TResult>(this IDbConnection connection,
                                                                                        string tableName,
                                                                                        TEntity entity,
                                                                                        IEnumerable <Field> fields = null,
                                                                                        string hints                       = null,
                                                                                        int?commandTimeout                 = null,
                                                                                        IDbTransaction transaction         = null,
                                                                                        ITrace trace                       = null,
                                                                                        IStatementBuilder statementBuilder = null,
                                                                                        bool skipIdentityCheck             = false)
            where TEntity : class
        {
            // Variables needed
            var dbSetting = connection.GetDbSetting();

            // Get the database fields
            var dbFields = await DbFieldCache.GetAsync(connection, tableName, transaction);

            // Get the function
            var callback = new Func <InsertExecutionContext <TEntity> >(() =>
            {
                // Variables needed
                var identity        = (Field)null;
                var inputFields     = (IEnumerable <DbField>)null;
                var identityDbField = dbFields?.FirstOrDefault(f => f.IsIdentity);

                // Set the identity field
                if (skipIdentityCheck == false)
                {
                    identity = IdentityCache.Get <TEntity>()?.AsField();
                    if (identity == null && identityDbField != null)
                    {
                        identity = FieldCache.Get <TEntity>().FirstOrDefault(field =>
                                                                             string.Equals(field.Name.AsUnquoted(true, dbSetting), identityDbField.Name.AsUnquoted(true, dbSetting), StringComparison.OrdinalIgnoreCase));
                    }
                }

                // Filter the actual properties for input fields
                inputFields = dbFields?
                              .Where(dbField => dbField.IsIdentity == false)
                              .Where(dbField =>
                                     fields.FirstOrDefault(field =>
                                                           string.Equals(field.Name.AsUnquoted(true, dbSetting), dbField.Name.AsUnquoted(true, dbSetting), StringComparison.OrdinalIgnoreCase)) != null)
                              .AsList();

                // Variables for the entity action
                var identityPropertySetter = (Action <TEntity, object>)null;

                // Get the identity setter
                if (skipIdentityCheck == false && identity != null)
                {
                    identityPropertySetter = FunctionCache.GetDataEntityPropertyValueSetterFunction <TEntity>(identity);
                }

                // Identify the requests
                var insertRequest = (InsertRequest)null;

                // Create a different kind of requests
                if (typeof(TEntity) == StaticType.Object)
                {
                    insertRequest = new InsertRequest(tableName,
                                                      connection,
                                                      transaction,
                                                      fields,
                                                      hints,
                                                      statementBuilder);
                }
                else
                {
                    insertRequest = new InsertRequest(typeof(TEntity),
                                                      connection,
                                                      transaction,
                                                      fields,
                                                      hints,
                                                      statementBuilder);
                }

                // Return the value
                return(new InsertExecutionContext <TEntity>
                {
                    CommandText = CommandTextCache.GetInsertText(insertRequest),
                    InputFields = inputFields,
                    ParametersSetterFunc = FunctionCache.GetDataEntityDbCommandParameterSetterFunction <TEntity>(
                        string.Concat(typeof(TEntity).FullName, StringConstant.Period, tableName, ".Insert"),
                        inputFields?.AsList(),
                        null,
                        dbSetting),
                    IdentityPropertySetterFunc = identityPropertySetter
                });
            });

            // Get the context
            var context = InsertExecutionContextCache <TEntity> .Get(tableName, fields, callback);

            var sessionId = Guid.Empty;

            // Before Execution
            if (trace != null)
            {
                sessionId = Guid.NewGuid();
                var cancellableTraceLog = new CancellableTraceLog(sessionId, context.CommandText, entity, null);
                trace.BeforeInsert(cancellableTraceLog);
                if (cancellableTraceLog.IsCancelled)
                {
                    if (cancellableTraceLog.IsThrowException)
                    {
                        throw new CancelledExecutionException(context.CommandText);
                    }
                    return(default(TResult));
                }
                context.CommandText = (cancellableTraceLog.Statement ?? context.CommandText);
                entity = (TEntity)(cancellableTraceLog.Parameter ?? entity);
            }

            // Before Execution Time
            var beforeExecutionTime = DateTime.UtcNow;

            // Execution variables
            var result = default(TResult);

            // Create the command
            using (var command = (DbCommand)(await connection.EnsureOpenAsync()).CreateCommand(context.CommandText,
                                                                                               CommandType.Text, commandTimeout, transaction))
            {
                // Set the values
                context.ParametersSetterFunc(command, entity);

                // Actual Execution
                result = Converter.ToType <TResult>(await command.ExecuteScalarAsync());

                // Get explicity if needed
                if (Equals(result, default(TResult)) == true && dbSetting.IsMultiStatementExecutable == false)
                {
                    result = Converter.ToType <TResult>(await connection.GetDbHelper().GetScopeIdentityAsync(connection, transaction));
                }

                // Set the return value
                if (Equals(result, default(TResult)) == false)
                {
                    context.IdentityPropertySetterFunc?.Invoke(entity, result);
                }
            }

            // After Execution
            if (trace != null)
            {
                trace.AfterInsert(new TraceLog(sessionId, context.CommandText, entity, result,
                                               DateTime.UtcNow.Subtract(beforeExecutionTime)));
            }

            // Return the result
            return(result);
        }