internal static bool ExecuteObjectExist(this DbHelper dbHelper, IRepositoryConventions conventions, DbCommand command, object obj)
{
Guard.NotNull(dbHelper, nameof(dbHelper));
Guard.NotNull(conventions, nameof(conventions));
Guard.NotNull(command, nameof(command));
Guard.NotNull(obj, nameof(obj));
var entityType = obj.GetType();
var tableName = conventions.GetTableName(entityType);
var primaryKeyPropertyInfo = conventions.GetPrimaryKeyPropertyInfos(entityType).First();
var primaryKeyColumnName = conventions.GetColumnName(primaryKeyPropertyInfo);
command.CommandText = $"SELECT * FROM [{tableName}]\nWHERE {primaryKeyColumnName} = @{primaryKeyColumnName}";
command.CommandType = CommandType.Text;
command.Parameters.Clear();
command.AddParameter($"@{primaryKeyColumnName}", primaryKeyPropertyInfo.GetValue(obj, null));
var existInDb = false;
using (var reader = dbHelper.ExecuteReader(command))
{
while (reader.Read())
{
existInDb = true;
break;
}
}
return(existInDb);
}
/// <summary>
/// Defaults this instance.
/// </summary>
/// <param name="conventions">The configurable conventions.</param>
/// <returns>The default fetch strategy.</returns>
public static IFetchQueryStrategy <T> Default([NotNull] IRepositoryConventions conventions)
{
Guard.NotNull(conventions, nameof(conventions));
var mainTableProperties = typeof(T).GetRuntimeProperties().ToList();
// Assumes we want to perform a join when the navigation property from the primary table has also a navigation property of
// the same type as the primary table
// Only do a join when the primary table has a foreign key property for the join table
var paths = mainTableProperties
.Where(x => x.IsComplex() && conventions.GetPrimaryKeyPropertyInfos(x.PropertyType).Any())
.Select(x => x.Name)
.ToList();
var fetchStrategy = new FetchQueryStrategy <T>();
if (paths.Count > 0)
{
foreach (var path in paths)
{
fetchStrategy.Fetch(path);
}
}
return(fetchStrategy);
}
public static void CreateInsertStatement(IRepositoryConventions conventions, object entity, out string sql, out Dictionary <string, object> parameters)
{
Guard.NotNull(conventions, nameof(conventions));
Guard.NotNull(entity, nameof(entity));
parameters = new Dictionary <string, object>();
var entityType = entity.GetType();
var tableName = conventions.GetTableName(entityType);
var primaryKeyPropertyInfos = conventions.GetPrimaryKeyPropertyInfos(entityType).ToList();
var properties = GetProperties(conventions, entityType);
if (primaryKeyPropertyInfos.Count == 1)
{
var primaryKeyPropertyInfo = primaryKeyPropertyInfos.First();
var primaryKeyColumnName = conventions.GetColumnName(primaryKeyPropertyInfo);
if (conventions.IsColumnIdentity(primaryKeyPropertyInfo))
{
properties.Remove(primaryKeyColumnName);
parameters.Add($"@{primaryKeyColumnName}", primaryKeyPropertyInfo.GetValue(entity, null));
}
}
foreach (var x in properties)
{
parameters.Add($"@{x.Key}", x.Value.GetValue(entity, null));
}
var columnNames = string.Join(", ", properties.Select(x => x.Key)).TrimEnd();
var values = string.Join(", ", properties.Select(x => $"@{x.Key}")).TrimEnd();
sql = $"INSERT INTO [{tableName}] ({columnNames}){Environment.NewLine}VALUES ({values})";
}
/// <summary>
/// Maps each element to a new form.
/// </summary>
/// <param name="reader">The data reader used for transforming each element.</param>
/// <param name="conventions">The configurable conventions.</param>
/// <returns>The new projected element form.</returns>
public T Map([NotNull] IDataReader reader, [NotNull] IRepositoryConventions conventions)
{
Guard.NotNull(reader, nameof(reader));
Guard.NotNull(conventions, nameof(conventions));
var properties = GetProperties(conventions);
var entity = Activator.CreateInstance <T>();
for (var i = 0; i < reader.FieldCount; i++)
{
var name = reader.GetName(i);
var value = reader[name];
if (value == DBNull.Value)
{
value = null;
}
if (properties.ContainsKey(name))
{
if (!reader.IsDBNull(reader.GetOrdinal(name)))
{
var pi = properties[name];
pi.SetValue(entity, value);
}
}
}
return(entity);
}
public Customer Map(IDataReader reader, IRepositoryConventions conventions)
{
return(new Customer()
{
Id = reader.GetInt32(0),
Name = reader.GetString(1)
});
}
/// <summary>
/// Returns the option instance with a configured conventions.
/// </summary>
/// <param name="conventions">The configurable conventions.</param>
/// <returns>The same option instance.</returns>
public RepositoryOptions With([NotNull] IRepositoryConventions conventions)
{
var clone = Clone();
clone._conventions = Guard.NotNull(conventions, nameof(conventions));
return(clone);
}
/// <summary>
/// Gets a collection of primary keys for the specified type.
/// </summary>
/// <param name="source">The repository conventions.</param>
/// <param name="type">The type.</param>
/// <returns>The collection of primary keys for the specified type.</returns>
public static PropertyInfo[] GetPrimaryKeyPropertyInfos([NotNull] this IRepositoryConventions source, [NotNull] Type type)
{
Guard.NotNull(type, nameof(type));
var result = EnsureCallback(
source.PrimaryKeysCallback,
nameof(source.PrimaryKeysCallback))(type) ?? new PropertyInfo[0];
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="RepositoryOptions" /> class.
/// </summary>
/// <param name="options">The repository options to clone.</param>
public RepositoryOptions([NotNull] IRepositoryOptions options)
{
Guard.NotNull(options, nameof(options));
_interceptors = options.Interceptors.ToDictionary(x => x.Key, x => x.Value);
_cachingProvider = options.CachingProvider;
_loggerProvider = options.LoggerProvider;
_contextFactory = options.ContextFactory;
_conventions = options.Conventions;
}
private static Dictionary <string, PropertyInfo> GetProperties(IRepositoryConventions conventions, Type entityType)
{
Guard.NotNull(conventions, nameof(conventions));
Guard.NotNull(entityType, nameof(entityType));
return(entityType
.GetRuntimeProperties()
.Where(x => x.IsPrimitive() && conventions.IsColumnMapped(x))
.OrderBy(conventions.GetColumnOrderOrDefault)
.ToDictionary(conventions.GetColumnName, x => x));
}
public static void CreateSelectStatement <T>(IRepositoryConventions conventions, IQueryOptions <T> options, out string sql, out Dictionary <string, object> parameters)
{
CreateSelectStatement <T>(
conventions,
options,
false,
out sql,
out parameters,
out var navigationProperties,
out var getPropertyFromColumnAliasCallback);
}
public static void CreateSelectStatement <T>(IRepositoryConventions conventions, IQueryOptions <T> options, out string sql, out Dictionary <string, object> parameters, out Dictionary <Type, Dictionary <string, PropertyInfo> > navigationProperties, out Func <string, Type> getTableTypeByColumnAliasCallback)
{
CreateSelectStatement <T>(
conventions,
options,
true,
out sql,
out parameters,
out navigationProperties,
out getTableTypeByColumnAliasCallback);
}
/// <summary>
/// Throws an exception if the specified entity type has an invalid primary key definition.
/// </summary>
/// <param name="source">The configurable conventions.</param>
internal static void ThrowsIfInvalidPrimaryKeyDefinition <T>([NotNull] this IRepositoryConventions source) where T : class
{
var definedKeyInfos = source.GetPrimaryKeyPropertyInfos <T>();
if (!definedKeyInfos.Any())
{
throw new InvalidOperationException(string.Format(
Resources.EntityRequiresPrimaryKey,
typeof(T).FullName));
}
}
public Mapper(IRepositoryConventions conventions)
{
_conventions = Guard.NotNull(conventions, nameof(conventions));
_properties = typeof(T).GetRuntimeProperties()
.Where(x => x.IsPrimitive() && _conventions.IsColumnMapped(x))
.OrderBy(_conventions.GetColumnOrderOrDefault)
.ToDictionary(_conventions.GetColumnName, x => x);
_navigationProperties = new Dictionary <Type, Dictionary <string, PropertyInfo> >();
}
public static bool IsColumnIdentity([NotNull] IRepositoryConventions conventions, [NotNull] PropertyInfo pi)
{
Guard.NotNull(pi, nameof(pi));
if (!_isColumnIdentityCache.TryGetValue(pi, out bool result))
{
result = IsColumnIdentityCore(conventions, pi);
_isColumnIdentityCache.TryAdd(pi, result);
}
return(result);
}
private static bool IsColumnIdentityCore(IRepositoryConventions conventions, PropertyInfo pi)
{
var databaseGeneratedAttribute = pi.GetCustomAttribute <DatabaseGeneratedAttribute>();
if (databaseGeneratedAttribute == null)
{
var primaryKeyPropertyInfos = conventions.GetPrimaryKeyPropertyInfos(pi.DeclaringType);
return((primaryKeyPropertyInfos.Length == 1) && primaryKeyPropertyInfos.First().Name.Equals(pi.Name));
}
return(databaseGeneratedAttribute.DatabaseGeneratedOption == DatabaseGeneratedOption.Identity);
}
public static int?GetColumnOrder([NotNull] IRepositoryConventions conventions, [NotNull] PropertyInfo pi)
{
Guard.NotNull(conventions, nameof(conventions));
Guard.NotNull(pi, nameof(pi));
if (!_columnOrderCache.TryGetValue(pi, out int?result))
{
result = GetColumnOrderCore(conventions, pi);
_columnOrderCache.TryAdd(pi, result);
}
return(result);
}
private Dictionary <string, PropertyInfo> GetProperties([NotNull] IRepositoryConventions conventions)
{
Guard.NotNull(conventions, nameof(conventions));
if (_propertiesMapping == null || _propertiesMapping.Count == 0)
{
_propertiesMapping = typeof(T).GetRuntimeProperties()
.Where(x => x.IsPrimitive() && conventions.IsColumnMapped(x))
.ToDictionary(conventions.GetColumnName, x => x);
}
return(_propertiesMapping);
}
/// <summary>
/// Gets a collection of primary keys for the specified type.
/// </summary>
/// <param name="source">The repository conventions.</param>
/// <param name="type">The type.</param>
/// <returns>The collection of primary keys for the specified type.</returns>
public static PropertyInfo[] GetPrimaryKeyPropertyInfos([NotNull] this IRepositoryConventions source, [NotNull] Type type)
{
EnsureOwner(source);
Guard.NotNull(type, nameof(type));
var store = _primaryKeyPropertyInfosCache.GetOrAdd(source.Owner, new ConcurrentDictionary <Type, PropertyInfo[]>());
if (!store.TryGetValue(type, out var result))
{
store[type] = result = EnsureCallback(
source.PrimaryKeysCallback,
nameof(source.PrimaryKeysCallback))(type) ?? new PropertyInfo[0];
}
return(result);
}
private static Type EnsureOwner([NotNull] IRepositoryConventions source)
{
Guard.NotNull(source, nameof(source));
var owner = Guard.EnsureNotNull(
source.Owner,
string.Format("The conventions '{0}' cannot be null.", nameof(source.Owner)));
if (!owner.ImplementsInterface(typeof(IRepositoryContext)))
{
throw new InvalidOperationException(string.Format(
"The conventions '{0}' is not an instance of type '{1}'.", nameof(source.Owner), typeof(IRepositoryContext).FullName));
}
return(owner);
}
/// <summary>
/// Determines whether the specified property is defined as identity.
/// </summary>
/// <param name="source">The configurable conventions.</param>
/// <param name="pi">The property.</param>
/// <returns><c>true</c> if column is defined as identity.; otherwise, <c>false</c>.</returns>
public static bool IsColumnIdentity([NotNull] this IRepositoryConventions source, [NotNull] PropertyInfo pi)
{
EnsureOwner(source);
Guard.NotNull(pi, nameof(pi));
var store = _isColumnIdentityCallback.GetOrAdd(source.Owner, new ConcurrentDictionary <PropertyInfo, bool>());
if (!store.TryGetValue(pi, out var result))
{
store[pi] = result = EnsureCallback(
source.IsColumnIdentityCallback,
nameof(source.IsColumnIdentityCallback))(pi);
}
return(result);
}
/// <summary>
/// Gets a column order for the specified property.
/// </summary>
/// <param name="source">The configurable conventions.</param>
/// <param name="pi">The property.</param>
/// <returns>The column order for the specified property.</returns>
public static int?GetColumnOrder([NotNull] this IRepositoryConventions source, [NotNull] PropertyInfo pi)
{
EnsureOwner(source);
Guard.NotNull(pi, nameof(pi));
var store = _columnOrderCache.GetOrAdd(source.Owner, new ConcurrentDictionary <PropertyInfo, int?>());
if (!store.TryGetValue(pi, out var result))
{
store[pi] = result = EnsureCallback(
source.ColumnOrderCallback,
nameof(source.ColumnOrderCallback))(pi);
}
return(result);
}
/// <summary>
/// Gets a table name for the specified type.
/// </summary>
/// <param name="source">The configurable conventions.</param>
/// <param name="type">The type.</param>
/// <returns>The table name for the specified type.</returns>
public static string GetTableName([NotNull] this IRepositoryConventions source, [NotNull] Type type)
{
EnsureOwner(source);
Guard.NotNull(type, nameof(type));
var store = _tableNameCache.GetOrAdd(source.Owner, new ConcurrentDictionary <Type, string>());
if (!store.TryGetValue(type, out var result))
{
store[type] = result = EnsureCallback(
source.TableNameCallback,
nameof(source.TableNameCallback))(type);
}
return(result);
}
/// <summary>
/// Gets a collection of foreign key properties that matches the specified foreign type.
/// </summary>
/// <param name="source">The repository conventions.</param>
/// <param name="sourceType">The source type.</param>
/// <param name="foreignType">The foreign type to match.</param>
/// <returns>The collection of foreign key properties that matches the specified foreign type.</returns>
public static PropertyInfo[] GetForeignKeyPropertyInfos([NotNull] this IRepositoryConventions source, [NotNull] Type sourceType, [NotNull] Type foreignType)
{
EnsureOwner(source);
Guard.NotNull(sourceType, nameof(sourceType));
Guard.NotNull(foreignType, nameof(foreignType));
var store = _foreignKeyPropertyInfosCache.GetOrAdd(source.Owner, new ConcurrentDictionary <Tuple <Type, Type>, PropertyInfo[]>());
var key = Tuple.Create(sourceType, foreignType);
if (!store.TryGetValue(key, out var result))
{
store[key] = result = EnsureCallback(
source.ForeignKeysCallback,
nameof(source.ForeignKeysCallback))(sourceType, foreignType) ?? new PropertyInfo[0];
}
return(result);
}
/// <summary>
/// Throws an exception if the specified key type collection does not match the ones defined for the entity.
/// </summary>
/// <param name="source">The configurable conventions.</param>
/// <param name="keyTypes">The key type collection to check against.</param>
public static void ThrowsIfInvalidPrimaryKeyDefinition <T>([NotNull] this IRepositoryConventions source, [NotNull] params Type[] keyTypes) where T : class
{
Guard.NotNull(source, nameof(source));
Guard.NotEmpty(keyTypes, nameof(keyTypes));
var definedKeyInfos = source.GetPrimaryKeyPropertyInfos <T>().ToList();
if (!definedKeyInfos.Any())
{
throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture,
Resources.EntityRequiresPrimaryKey,
typeof(T).FullName));
}
if (definedKeyInfos.Count > 1)
{
var hasNoKeyOrdering = definedKeyInfos.Any(x =>
{
var columnOrdering = source.GetColumnOrder(x);
if (!columnOrdering.HasValue)
{
return(true);
}
return(columnOrdering.Value <= 0);
});
if (hasNoKeyOrdering)
{
throw new InvalidOperationException(string.Format(
Resources.UnableToDetermineCompositePrimaryKeyOrdering, typeof(T).FullName));
}
}
var definedKeyTypes = definedKeyInfos
.Select(x => x.PropertyType)
.ToArray();
if (keyTypes.Length != definedKeyTypes.Length || definedKeyTypes.Where((t, i) => t != keyTypes[i]).Any())
{
throw new InvalidOperationException(Resources.EntityPrimaryKeyTypesMismatch);
}
}
private static int?GetColumnOrderCore(IRepositoryConventions conventions, PropertyInfo pi)
{
var columnAttribute = pi.GetCustomAttribute <ColumnAttribute>();
if (columnAttribute == null)
{
// Checks to see if the property is a primary key, and if so, try to give it the lowest ordering number
var primerKeyPropertyInfos = conventions.GetPrimaryKeyPropertyInfos(pi.DeclaringType);
if ((primerKeyPropertyInfos.Length == 1) && primerKeyPropertyInfos.First().Name.Equals(pi.Name))
{
return(-1);
}
}
else if (columnAttribute.Order > 0)
{
return(columnAttribute.Order);
}
return(null);
}
public static PropertyInfo[] GetPrimaryKeyPropertyInfos([NotNull] IRepositoryConventions conventions, [NotNull] Type entityType)
{
Guard.NotNull(conventions, nameof(conventions));
Guard.NotNull(entityType, nameof(entityType));
// Gets by checking the annotations
var propertyInfos = entityType
.GetRuntimeProperties()
.Where(x => conventions.IsColumnMapped(x) && x.GetCustomAttribute <KeyAttribute>() != null)
.OrderBy(x =>
{
var columnAttribute = x.GetCustomAttribute <ColumnAttribute>();
if (columnAttribute != null && columnAttribute.Order > 0)
{
return(columnAttribute.Order);
}
return(int.MaxValue);
})
.ToList();
// Gets by naming convention
if (!propertyInfos.Any())
{
foreach (var propertyName in GetDefaultPrimaryKeyNameChecks(entityType))
{
var propertyInfo = entityType.GetTypeInfo().GetDeclaredProperty(propertyName);
if (propertyInfo != null && conventions.IsColumnMapped(propertyInfo))
{
propertyInfos.Add(propertyInfo);
break;
}
}
}
return(propertyInfos.ToArray());
}
public static void CreateDeleteStatement(IRepositoryConventions conventions, object entity, out string sql, out Dictionary <string, object> parameters)
{
Guard.NotNull(conventions, nameof(conventions));
Guard.NotNull(entity, nameof(entity));
parameters = new Dictionary <string, object>();
var entityType = entity.GetType();
var tableName = conventions.GetTableName(entityType);
var primaryKeyColumnNamesDict = conventions
.GetPrimaryKeyPropertyInfos(entityType)
.ToDictionary(conventions.GetColumnName, x => x);
var condition = string.Join(" AND ", primaryKeyColumnNamesDict.Select(kv => "(" + kv.Key + " = @" + kv.Key + ")"));
sql = $"DELETE FROM [{tableName}]{Environment.NewLine}WHERE ({condition})";
foreach (var x in primaryKeyColumnNamesDict)
{
parameters.Add($"@{x.Key}", x.Value.GetValue(entity, null));
}
}
public static void CreateUpdateStatement(IRepositoryConventions conventions, object entity, out string sql, out Dictionary <string, object> parameters)
{
Guard.NotNull(conventions, nameof(conventions));
Guard.NotNull(entity, nameof(entity));
parameters = new Dictionary <string, object>();
var entityType = entity.GetType();
var tableName = conventions.GetTableName(entityType);
var primaryKeyPropertyInfos = conventions.GetPrimaryKeyPropertyInfos(entityType).ToList();
var primaryKeyColumnNamesDict = primaryKeyPropertyInfos.ToDictionary(conventions.GetColumnName, x => x);
var properties = GetProperties(conventions, entityType);
if (primaryKeyPropertyInfos.Count == 1)
{
var primaryKeyPropertyInfo = primaryKeyPropertyInfos.First();
var primaryKeyColumnName = conventions.GetColumnName(primaryKeyPropertyInfo);
if (conventions.IsColumnIdentity(primaryKeyPropertyInfo))
{
properties.Remove(primaryKeyColumnName);
parameters.Add($"@{primaryKeyColumnName}", primaryKeyPropertyInfo.GetValue(entity, null));
}
}
var values = string.Join($",{Environment.NewLine}\t", properties.Select(x => x.Key + " = " + $"@{x.Key}"));
var condition = string.Join(" AND ", primaryKeyColumnNamesDict.Select(kv => "(" + kv.Key + " = @" + kv.Key + ")"));
sql = $"UPDATE [{tableName}]{Environment.NewLine}SET {values}{Environment.NewLine}WHERE ({condition})";
foreach (var x in properties)
{
parameters.Add($"@{x.Key}", x.Value.GetValue(entity, null));
}
}
/// <summary>
/// Apply a sorting options to the specified entity's query.
/// </summary>
/// <returns>The entity's query with the applied options.</returns>
public static IOrderedQueryable <T> ApplySortingOptions <T>([NotNull] this IQueryable <T> query, [NotNull] IRepositoryConventions conventions, [CanBeNull] IQueryOptions <T> options) where T : class
{
Guard.NotNull(query, nameof(query));
var sorting = new Dictionary <string, SortOrder>();
if (options != null)
{
sorting = options.SortingProperties.ToDictionary(x => x.Key, x => x.Value);
}
// Sorts on the composite key by default if no sorting is provided
if (!sorting.Any())
{
foreach (var primaryKeyPropertyInfo in conventions.GetPrimaryKeyPropertyInfos <T>())
{
sorting.Add(primaryKeyPropertyInfo.Name, SortOrder.Ascending);
}
}
var primarySorting = sorting.ElementAt(0);
var primarySortingOrder = primarySorting.Value;
var primarySortingProperty = primarySorting.Key;
var sortedQuery = primarySortingOrder == SortOrder.Descending
? query.OrderByDescending(primarySortingProperty)
: query.OrderBy(primarySortingProperty);
for (var i = 1; i < sorting.Count; i++)
{
var sort = sorting.ElementAt(i);
var sortOrder = sort.Value;
var sortProperty = sort.Key;
sortedQuery = sortOrder == SortOrder.Descending
? sortedQuery.ThenByDescending(sortProperty)
: sortedQuery.ThenBy(sortProperty);
}
return(sortedQuery);
}
public static IQueryable <T> ApplyFetchingOptions <T>(this IQueryable <T> query, IRepositoryConventions conventions, IQueryOptions <T> options) where T : class
{
Guard.NotNull(query, nameof(query));
var fetchingPaths = options.DefaultIfFetchStrategyEmpty(conventions).PropertyPaths.ToList();
if (fetchingPaths.Any())
{
query = fetchingPaths.Aggregate(query, (current, path) => current.Include(path));
}
return(query);
}
