/// <summary>
/// Generates the insert statement for this table.
/// </summary>
/// <param name="context"></param>
/// <param name="queryBuilder"></param>
/// <param name="properties"></param>
protected override void DoToInsertStatement(IMansionContext context, ModificationQueryBuilder queryBuilder, IPropertyBag properties)
{
// create a table modification query
var tableModificationQuery = new ModificationQueryBuilder(queryBuilder);
foreach (var column in Columns)
column.ToInsertStatement(context, tableModificationQuery, properties);
// if there are no modified column add table modification query to the master query builder
if (!tableModificationQuery.HasModifiedColumns)
return;
queryBuilder.PrependQuery("DECLARE @ScopeIdentity AS int");
queryBuilder.AppendQuery(tableModificationQuery.ToInsertStatement(Name));
queryBuilder.AppendQuery("SET @ScopeIdentity = SCOPE_IDENTITY()");
}
/// <summary>
/// Generates the update statement for this table.
/// </summary>
/// <param name="context"></param>
/// <param name="queryBuilder"></param>
/// <param name="record"> </param>
/// <param name="modifiedProperties"></param>
protected override void DoToUpdateStatement(IMansionContext context, ModificationQueryBuilder queryBuilder, Record record, IPropertyBag modifiedProperties)
{
// create a table modification query
var tableModificationQuery = new ModificationQueryBuilder(queryBuilder);
foreach (var column in Columns)
column.ToUpdateStatement(context, tableModificationQuery, record, modifiedProperties);
// if there are no modified column add table modification query to the master query builder
if (tableModificationQuery.HasModifiedColumns)
queryBuilder.AppendQuery(tableModificationQuery.ToUpdateStatement(Name));
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="queryBuilder"></param>
/// <param name="properties"></param>
protected override void DoToInsertStatement(IMansionContext context, ModificationQueryBuilder queryBuilder, IPropertyBag properties)
{
// allow identity insert on special cases, most likely used when fixing the repository integrity
if (!properties.Get(context, "_allowIdenityInsert", false))
return;
queryBuilder.PrependQuery("SET IDENTITY_INSERT [dbo].[Nodes] ON;");
// get the value of the column
var value = properties.Get<object>(context, PropertyName);
// add the parameter
var parameterName = queryBuilder.AddParameter(ColumnName, value);
// set the column value
queryBuilder.AddColumnValue(ColumnName, parameterName);
queryBuilder.AppendQuery("SET IDENTITY_INSERT [dbo].[Nodes] OFF;");
}
/// <summary>
/// Prepares an insert query.
/// </summary>
/// <param name="context"></param>
/// <param name="connection">The connection.</param>
/// <param name="transaction">The transaction.</param>
/// <param name="properties"></param>
/// <returns></returns>
public void Prepare(IMansionContext context, SqlConnection connection, SqlTransaction transaction, IPropertyBag properties)
{
// validate arguments
if (connection == null)
throw new ArgumentNullException("connection");
if (transaction == null)
throw new ArgumentNullException("transaction");
if (properties == null)
throw new ArgumentNullException("properties");
// get the values
var typeName = properties.Get<string>(context, "type", null);
if (string.IsNullOrWhiteSpace(typeName))
throw new InvalidOperationException("A record must have a type");
// retrieve the type
var type = typeService.Load(context, typeName);
// get the schema of the root type
var schema = Resolver.Resolve(context, type);
// set the full text property
SqlServerUtilities.PopulateFullTextColumn(context, type, properties, properties);
// create the commands
command = connection.CreateCommand();
command.CommandType = CommandType.Text;
command.Transaction = transaction;
// prepare the query
var queryBuilder = new ModificationQueryBuilder(command);
// loop through all the tables in the schema and let them prepare for insert
foreach (var table in schema.Tables)
table.ToInsertStatement(context, queryBuilder, properties);
// finish the complete insert statement
queryBuilder.AppendQuery("SELECT @ScopeIdentity");
// set the command text
command.CommandText = queryBuilder.ToStatement();
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="queryBuilder"></param>
/// <param name="record"> </param>
/// <param name="modifiedProperties"></param>
protected override void DoToUpdateStatement(IMansionContext context, ModificationQueryBuilder queryBuilder, Record record, IPropertyBag modifiedProperties)
{
// allow update of relational column on special cases, most likely used when fixing the repository integrity
if (modifiedProperties.Get(context, "_allowRelationPropertiesUpdate", false))
{
string name;
if (modifiedProperties.TryGet(context, "name", out name))
queryBuilder.AddColumnValue("name", name, DbType.String);
string type;
if (modifiedProperties.TryGet(context, "type", out type))
queryBuilder.AddColumnValue("type", type, DbType.String);
int depth;
if (modifiedProperties.TryGet(context, "depth", out depth))
queryBuilder.AddColumnValue("depth", depth, DbType.Int32);
int parentId;
if (modifiedProperties.TryGet(context, "parentId", out parentId))
queryBuilder.AddColumnValue("parentId", parentId, DbType.Int32);
string parentPointer;
if (modifiedProperties.TryGet(context, "parentPointer", out parentPointer))
queryBuilder.AddColumnValue("parentPointer", parentPointer, DbType.String);
string parentPath;
if (modifiedProperties.TryGet(context, "parentPath", out parentPath))
queryBuilder.AddColumnValue("parentPath", parentPath, DbType.String);
string parentStructure;
if (modifiedProperties.TryGet(context, "parentStructure", out parentStructure))
queryBuilder.AddColumnValue("parentStructure", parentStructure, DbType.String);
return;
}
// make sure the relational intgrety is not comprimised
if (modifiedProperties.Names.Intersect(ReservedPropertyName, StringComparer.OrdinalIgnoreCase).Any())
throw new InvalidOperationException("The relational properties can not be changed");
// get the pointer
NodePointer pointer;
if (!record.TryGet(context, "pointer", out pointer))
throw new InvalidOperationException("Could not update this record because it did not contain a pointer");
// add the id an pointer parameters
var idParameterName = queryBuilder.AddParameter("id", pointer.Id, DbType.Int32);
var pointerParameterName = queryBuilder.AddParameter("pointer", pointer.PointerString + "-%", DbType.String);
// check if the name changed
string newName;
if (modifiedProperties.TryGetAndRemove(context, "name", out newName))
{
newName = newName.Trim();
if (string.IsNullOrEmpty(newName))
throw new InvalidOperationException("Can not update column name with empty string");
if (newName.Contains(NodePointer.PathSeparator))
throw new InvalidOperationException(string.Format("Name '{0}' contains invalid characters", newName));
if (!pointer.Name.Equals(newName))
{
// add the name column modification
queryBuilder.AddColumnValue("name", newName, DbType.String);
// update the paths
var oldPathLengthParameterName = queryBuilder.AddParameter("oldPathLength", pointer.PathString.Length + 1, DbType.String);
var newPathParameterName = queryBuilder.AddParameter("newPath", NodePointer.Rename(pointer, newName).PathString + NodePointer.PathSeparator, DbType.String);
queryBuilder.AppendQuery(string.Format(@" UPDATE [Nodes] SET [parentPath] = {0} + RIGHT( [parentPath], LEN( [parentPath] ) - {1} ) WHERE ( [parentId] = {2} OR [parentPointer] LIKE {3} )", newPathParameterName, oldPathLengthParameterName, idParameterName, pointerParameterName));
}
}
// check if the type changed
string newType;
if (modifiedProperties.TryGetAndRemove(context, "type", out newType))
{
newType = newType.Trim();
if (string.IsNullOrEmpty(newType))
throw new InvalidOperationException("Can not update column type with empty string");
if (newType.Contains(NodePointer.StructureSeparator))
throw new InvalidOperationException(string.Format("Type '{0}' contains invalid characters", newType));
if (!string.IsNullOrEmpty(newType) && !pointer.Type.Equals(newType, StringComparison.OrdinalIgnoreCase))
{
// add the name column modification
queryBuilder.AddColumnValue("type", newType, DbType.String);
// update the structures
var newStructureParameterName = queryBuilder.AddParameter("newStructure", NodePointer.ChangeType(pointer, newType).StructureString + NodePointer.StructureSeparator, DbType.String);
var oldStructureLengthParameterName = queryBuilder.AddParameter("oldStructureLength", pointer.StructureString.Length + 1, DbType.Int32);
queryBuilder.AppendQuery(string.Format("UPDATE [Nodes] SET [parentStructure] = {0} + RIGHT( [parentStructure], LEN( [parentStructure] ) - {1} ) WHERE ( [parentId] = {2} OR [parentPointer] LIKE {3} )", newStructureParameterName, oldStructureLengthParameterName, idParameterName, pointerParameterName));
}
}
}
/// <summary>
/// Prepares an insert query.
/// </summary>
/// <param name="context"></param>
/// <param name="connection">The connection.</param>
/// <param name="transaction">The transaction.</param>
/// <param name="parent"></param>
/// <param name="properties"></param>
/// <returns></returns>
public void Prepare(IMansionContext context, SqlConnection connection, SqlTransaction transaction, NodePointer parent, IPropertyBag properties)
{
// validate arguments
if (connection == null)
throw new ArgumentNullException("connection");
if (transaction == null)
throw new ArgumentNullException("transaction");
if (parent == null)
throw new ArgumentNullException("parent");
if (properties == null)
throw new ArgumentNullException("properties");
// get the values
var name = properties.Get<string>(context, "name", null);
if (string.IsNullOrWhiteSpace(name))
throw new InvalidOperationException("The node must have a name");
var typeName = properties.Get<string>(context, "type", null);
if (string.IsNullOrWhiteSpace(typeName))
throw new InvalidOperationException("The node must have a type");
// retrieve the type
var type = typeService.Load(context, typeName);
// get the schema of the root type
var schema = Resolver.Resolve(context, type);
// set the full text property
SqlServerUtilities.PopulateFullTextColumn(context, type, properties, properties);
// create the new pointer
name = NodePointer.MakeSafeName(name);
var newPointer = NodePointer.Parse(string.Join(NodePointer.PointerSeparator, new[] {parent.PointerString, 0.ToString(CultureInfo.InvariantCulture)}), string.Join(NodePointer.StructureSeparator, new[] {parent.StructureString, type.Name}), string.Join(NodePointer.PathSeparator, new[] {parent.PathString, name}));
properties.Set("_newPointer", newPointer);
// create the commands
command = connection.CreateCommand();
command.CommandType = CommandType.Text;
command.Transaction = transaction;
// prepare the query
var queryBuilder = new ModificationQueryBuilder(command);
// loop through all the tables in the schema and let them prepare for insert
foreach (var table in schema.Tables)
table.ToInsertStatement(context, queryBuilder, properties);
// finish the complete insert statement
queryBuilder.AppendQuery("SELECT @ScopeIdentity");
// set the command text
command.CommandText = queryBuilder.ToStatement();
}
/// <summary>
/// Generates the update statement for this table.
/// </summary>
/// <param name="context"></param>
/// <param name="queryBuilder"></param>
/// <param name="record"> </param>
/// <param name="modifiedProperties"></param>
protected override void DoToUpdateStatement(IMansionContext context, ModificationQueryBuilder queryBuilder, Record record, IPropertyBag modifiedProperties)
{
// create identity parameter
var idParameterName = queryBuilder.AddParameter("id", record.Id, DbType.Int32);
// loop through all the properties
foreach (var propertyName in Columns.Select(column => column.PropertyName))
{
// check if the property is modified
string rawModifiedValue;
if (!modifiedProperties.TryGet(context, propertyName, out rawModifiedValue))
continue;
// get the current values
var currentValues = GetCurrentValues(queryBuilder.Command, record, propertyName).ToList();
// check if there are new properties
var modifiedValues = (rawModifiedValue ?? string.Empty).Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries).Select(x => x.Trim()).ToArray();
// get the deleted values
var deletedValues = currentValues.Except(modifiedValues, StringComparer.OrdinalIgnoreCase);
var newValues = modifiedValues.Except(currentValues, StringComparer.OrdinalIgnoreCase);
// create property parameter
var propertyParameterName = queryBuilder.AddParameter(propertyName, propertyName, DbType.String);
// generate the delete statements
foreach (var deletedValue in deletedValues)
{
// build the query
var valueModificationQuery = new ModificationQueryBuilder(queryBuilder);
// build clause
var valueParameterName = valueModificationQuery.AddParameter("value", deletedValue, DbType.String);
valueModificationQuery.AppendWhereClause("[id] = " + idParameterName + " AND [name] = " + propertyParameterName + " AND [value] = " + valueParameterName);
// append the query
queryBuilder.AppendQuery(valueModificationQuery.ToDeleteStatement(Name));
}
// generate the insert statements
foreach (var newValue in newValues)
{
// build the query
var valueModificationQuery = new ModificationQueryBuilder(queryBuilder);
// set column values
valueModificationQuery.AddColumnValue("id", idParameterName);
valueModificationQuery.AddColumnValue("name", propertyParameterName);
valueModificationQuery.AddColumnValue("value", newValue, DbType.String);
// append the query
queryBuilder.AppendQuery(valueModificationQuery.ToInsertStatement(Name));
}
}
}
/// <summary>
/// Generates the insert statement for this table.
/// </summary>
/// <param name="context"></param>
/// <param name="queryBuilder"></param>
/// <param name="properties"></param>
protected override void DoToInsertStatement(IMansionContext context, ModificationQueryBuilder queryBuilder, IPropertyBag properties)
{
// loop through all the properties
foreach (var propertyName in Columns.Select(column => column.PropertyName))
{
// check if there are any properties
var values = properties.Get(context, propertyName, string.Empty).Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries).Select(x => x.Trim()).ToArray();
if (values.Length == 0)
continue;
// loop through each value and write an insert statement
foreach (var value in values)
{
// build the query
var valueModificationQuery = new ModificationQueryBuilder(queryBuilder);
// set column values
valueModificationQuery.AddColumnValue("id", "@ScopeIdentity");
valueModificationQuery.AddColumnValue("name", propertyName, DbType.String);
valueModificationQuery.AddColumnValue("value", value, DbType.String);
// append the query
queryBuilder.AppendQuery(valueModificationQuery.ToInsertStatement(Name));
}
}
}