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AbstractSqlCommandGenerator.cs
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AbstractSqlCommandGenerator.cs
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#region license
/*
Copyright 2005 - 2021 Advantage Solutions, s. r. o.
This file is part of ORIGAM (http://www.origam.org).
ORIGAM is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
ORIGAM is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ORIGAM. If not, see <http://www.gnu.org/licenses/>.
*/
#endregion
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.Common;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using Origam.DA.Service.CustomCommandParser;
using Origam.DA.Service.Generators;
using Origam.Extensions;
using Origam.Schema;
using Origam.Schema.EntityModel;
using Origam.Schema.LookupModel;
using Origam.Workbench.Services;
namespace Origam.DA.Service
{
public abstract class AbstractSqlCommandGenerator : IDbDataAdapterFactory, IDisposable
{
protected readonly SQLValueFormatter sqlValueFormatter;
internal readonly ParameterReference PageNumberParameterReference = new ParameterReference();
internal readonly ParameterReference PageSizeParameterReference = new ParameterReference();
internal readonly AbstractFilterRenderer filterRenderer;
internal string _pageNumberParameterName;
internal string _pageSizeParameterName;
internal int _indentLevel = 0;
protected readonly SqlRenderer sqlRenderer;
public AbstractSqlCommandGenerator(string trueValue, string falseValue,
SQLValueFormatter sqlValueFormatter, AbstractFilterRenderer filterRenderer,
SqlRenderer sqlRenderer)
{
PageNumberParameterReference.ParameterId = new Guid("3e5e12e4-a0dd-4d35-a00a-2fdb267536d1");
PageSizeParameterReference.ParameterId = new Guid("c310d577-d4d9-42da-af92-a5202ba26e79");
True = trueValue;
False = falseValue;
this.sqlValueFormatter = sqlValueFormatter;
this.filterRenderer = filterRenderer;
this.sqlRenderer = sqlRenderer;
}
public abstract string CreateOutputTableSql(string tmpTable);
public abstract string CreateDataStructureFooterSql(List<string>tmpTables);
public abstract string FunctionDefinitionDdl(Function function);
public abstract IDbDataParameter GetParameter();
public IDbDataParameter GetParameter(string name, Type type)
{
IDbDataParameter dbParam = GetParameter();
if (type == typeof(DateTime))
{
dbParam.DbType = DbType.DateTime;
}
else if (type == typeof(Guid))
{
dbParam.DbType = DbType.Guid;
}
else if (type == typeof(int))
{
dbParam.DbType = DbType.Int32;
}
else if (type == typeof(double))
{
dbParam.DbType = DbType.Double;
}
else if (type == typeof(bool))
{
dbParam.DbType = DbType.Boolean;
}
else if (type == typeof(Decimal) || type == typeof(float))
{
dbParam.DbType = DbType.Decimal;
}
dbParam.ParameterName = sqlRenderer.ParameterDeclarationChar + name;
return dbParam;
}
public abstract IDbCommand GetCommand(string cmdText);
public abstract IDbCommand GetCommand(string cmdText, IDbConnection connection);
public abstract IDbCommand GetCommand(string cmdText, IDbConnection connection, IDbTransaction transaction);
public abstract DbDataAdapter GetAdapter();
public abstract DbDataAdapter GetAdapter(IDbCommand command);
public abstract DbDataAdapter CloneAdapter(DbDataAdapter adapter);
public abstract IDbCommand CloneCommand(IDbCommand command);
public abstract void DeriveStoredProcedureParameters(IDbCommand command);
public abstract string GetIndexName(IDataEntity entity, DataEntityIndex index);
public string True { get; }
public string False { get; }
public const string RowNumColumnName = "RowNum";
public bool UserDefinedParameters { get; set; } = false;
public bool ResolveAllFilters { get; set; }
public bool PrettyFormat { get; set; }
public bool GenerateConsoleUseSyntax
{
get => sqlRenderer.GenerateConsoleUseSyntax;
set => sqlRenderer.GenerateConsoleUseSyntax = value;
}
public IDbCommand ScalarValueCommand(DataStructure ds, DataStructureFilterSet filter,
DataStructureSortSet sortSet, ColumnsInfo columnsInfo, Hashtable parameters)
{
Hashtable selectParameterReferences = new Hashtable();
IDbCommand cmd = GetCommand(
SelectSql(
selectParameters: new SelectParameters
{
DataStructure = ds,
Entity = ds.Entities[0] as DataStructureEntity,
Filter = filter,
SortSet = sortSet,
ColumnsInfo = columnsInfo,
Parameters = parameters,
Paging = false
},
replaceParameterTexts: null,
selectParameterReferences: selectParameterReferences,
restrictScalarToTop1: true,
isInRecursion: false,
forceDatabaseCalculation: true));
cmd.CommandType = CommandType.Text;
BuildSelectParameters(cmd, selectParameterReferences);
BuildFilterParameters(cmd, ds, filter, null, parameters);
return cmd;
}
public DbDataAdapter CreateDataAdapter(SelectParameters adParameters, bool forceDatabaseCalculation)
{
if (!(adParameters.Entity.EntityDefinition is TableMappingItem))
{
throw new Exception(ResourceUtils.GetString("OnlyMappedEntitiesToBeProcessed"));
}
DbDataAdapter adapter = GetAdapter();
BuildCommands(adapter, adParameters,
forceDatabaseCalculation);
adapter.TableMappings.Clear();
adapter.TableMappings.Add(CreateMapping(adParameters.Entity));
return adapter;
}
public DbDataAdapter CreateDataAdapter(string procedureName, ArrayList entitiesOrdered,
IDbConnection connection, IDbTransaction transaction)
{
IDbCommand cmd = GetCommand(procedureName);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Connection = connection;
cmd.Transaction = transaction;
DeriveStoredProcedureParameters(cmd);
DbDataAdapter adapter = GetAdapter(cmd);
adapter.TableMappings.Clear();
int order = 0;
foreach (DataStructureEntity entity in entitiesOrdered)
{
adapter.TableMappings.Add(CreateMapping(entity, order));
order += 1;
}
return adapter;
}
public DbDataAdapter CreateSelectRowDataAdapter(
DataStructureEntity entity, DataStructureFilterSet filterSet,
ColumnsInfo columnsInfo, bool forceDatabaseCalculation)
{
if (!(entity.EntityDefinition is TableMappingItem))
{
throw new Exception(ResourceUtils.GetString("OnlyMappedEntitiesToBeProcessed"));
}
DbDataAdapter adapter = GetAdapter();
BuildSelectRowCommand(adapter, entity, filterSet, columnsInfo,
forceDatabaseCalculation);
adapter.TableMappings.Clear();
adapter.TableMappings.Add(CreateMapping(entity));
return adapter;
}
public DbDataAdapter CreateUpdateFieldDataAdapter(TableMappingItem table, FieldMappingItem field)
{
DbDataAdapter adapter = GetAdapter();
BuildSelectUpdateFieldCommand(adapter, table, field);
adapter.TableMappings.Clear();
adapter.TableMappings.Add(CreateUpdateFieldMapping(table, field));
return adapter;
}
public IDbCommand UpdateFieldCommand(TableMappingItem entity, FieldMappingItem field)
{
IDbCommand cmd = GetCommand(
"UPDATE "
+ RenderExpression(entity)
+ " SET "
+ RenderExpression(field, null)
+ " = " + sqlRenderer.ParameterReferenceChar + "newValue WHERE "
+ RenderExpression(field, null)
+ " = " + sqlRenderer.ParameterReferenceChar + "oldValue");
cmd.CommandType = CommandType.Text;
IDataParameter sqlParam = BuildParameter(
sqlRenderer.ParameterDeclarationChar + "oldValue", null, field.DataType,
field.MappedDataType, field.DataLength, field.AllowNulls);
cmd.Parameters.Add(sqlParam);
sqlParam = BuildParameter(sqlRenderer.ParameterDeclarationChar + "newValue",
null, field.DataType, field.MappedDataType, field.DataLength,
field.AllowNulls);
cmd.Parameters.Add(sqlParam);
return cmd;
}
private DataTableMapping CreateMapping(DataStructureEntity entity)
{
return CreateMapping(entity, 0);
}
private DataTableMapping CreateMapping(DataStructureEntity entity, int tableOrder)
{
DataTableMapping dtm = new DataTableMapping();
if (tableOrder == 0)
{
dtm.SourceTable = "Table";
}
else
{
dtm.SourceTable = "Table" + tableOrder;
}
dtm.DataSetTable = entity.Name;
foreach (DataStructureColumn column in entity.Columns)
{
dtm.ColumnMappings.Add(column.Name, column.Name);
}
return dtm;
}
private DataTableMapping CreateUpdateFieldMapping(TableMappingItem table, FieldMappingItem field)
{
DataTableMapping dtm = new DataTableMapping();
dtm.SourceTable = "Table";
dtm.DataSetTable = table.Name;
foreach (IDataEntityColumn column in table.EntityPrimaryKey)
{
dtm.ColumnMappings.Add(column.Name, column.Name);
}
dtm.ColumnMappings.Add(field.Name, field.Name);
return dtm;
}
public void BuildSelectRowCommand(IDbDataAdapter adapter,
DataStructureEntity entity, DataStructureFilterSet filterSet,
ColumnsInfo columnsInfo, bool forceDatabaseCalculation)
{
Hashtable selectParameterReferences = new Hashtable();
adapter.SelectCommand = GetCommand(
SelectRowSql(entity, filterSet, selectParameterReferences,
columnsInfo, forceDatabaseCalculation));
BuildPrimaryKeySelectParameters(adapter.SelectCommand, entity);
BuildSelectParameters(adapter.SelectCommand, selectParameterReferences);
}
public void BuildSelectUpdateFieldCommand(DbDataAdapter adapter, TableMappingItem table, FieldMappingItem field)
{
((IDbDataAdapter)adapter).SelectCommand = GetCommand(SelectUpdateFieldSql(table, field));
BuildUpdateFieldParameters(((IDbDataAdapter)adapter).SelectCommand, field);
}
public IDbCommand SelectReferenceCountCommand(TableMappingItem table, FieldMappingItem field)
{
IDbCommand cmd = GetCommand(SelectReferenceCountSql(table, field));
cmd.CommandType = CommandType.Text;
BuildUpdateFieldParameters(cmd, field);
return cmd;
}
public void BuildCommands(IDbDataAdapter adapter, SelectParameters selectParameters,
bool forceDatabaseCalculation)
{
Hashtable selectParameterReferences = new Hashtable();
DataStructure dataStructure = selectParameters.DataStructure;
DataStructureEntity entity = selectParameters.Entity;
FilterCommandParser filterCommandParser =
new FilterCommandParser(
dataStructureColumns: entity.Columns,
filterRenderer: filterRenderer,
whereFilterInput: selectParameters.CustomFilters.Filters,
sqlRenderer: sqlRenderer);
OrderByCommandParser orderByCommandParser =
new OrderByCommandParser(
orderingsInput: selectParameters.CustomOrderings.Orderings);
adapter.SelectCommand =
GetCommand(SelectSql(
selectParameters: selectParameters,
replaceParameterTexts: null,
selectParameterReferences: selectParameterReferences,
restrictScalarToTop1: false,
isInRecursion: false,
forceDatabaseCalculation: forceDatabaseCalculation,
filterCommandParser: filterCommandParser,
orderByCommandParser: orderByCommandParser));
BuildSelectParameters(adapter.SelectCommand, selectParameterReferences);
BuildFilterParameters(adapter.SelectCommand, dataStructure,
selectParameters.Filter, null, selectParameters.Parameters);
AddCustomFilterParseParameters(adapter.SelectCommand, entity, filterCommandParser.ParameterDataList);
if (!dataStructure.Name.StartsWith("Lookup") || entity.AllFields)
{
adapter.UpdateCommand = GetCommand(UpdateSql(dataStructure, entity));
adapter.InsertCommand = GetCommand(InsertSql(dataStructure, entity));
adapter.DeleteCommand = GetCommand(DeleteSql(dataStructure, entity));
BuildUpdateParameters(adapter.UpdateCommand, entity);
BuildInsertParameters(adapter.InsertCommand, entity);
BuildDeleteParameters(adapter.DeleteCommand, entity);
}
}
private void AddCustomFilterParseParameters(
IDbCommand command,
DataStructureEntity dataStructureEntity,
List<ParameterData> parameterDataList)
{
foreach (var parameterData in parameterDataList)
{
var dataStructureColumn = dataStructureEntity.Columns
.Find(column => column.Name == parameterData.ColumnName);
var parameter = BuildParameter(parameterData.ParameterName,
null,
parameterData.DataType,
null,
dataStructureColumn.Field.DataLength,
dataStructureColumn.Field.AllowNulls);
parameter.Value = parameterData.Value;
command.Parameters.Add(parameter);
}
}
public void BuildFilterParameters(IDbCommand command, DataStructure ds, DataStructureFilterSet filterSet, Hashtable replaceParameterTexts, Hashtable parameters)
{
foreach (DataStructureEntity entity in ds.Entities)
{
foreach (EntityFilter filter in Filters(filterSet, entity, parameters, false))
{
Hashtable paramReferences = filter.ParameterReferences;
foreach (DictionaryEntry entry in paramReferences)
{
ParameterReference parameterRef = entry.Value as ParameterReference;
string paramName = RenderExpression(parameterRef, entity, replaceParameterTexts, null, null);
if (!command.Parameters.Contains(paramName))
{
IDbDataParameter sqlParam = BuildParameter(paramName, parameterRef);
command.Parameters.Add(sqlParam);
}
}
}
// recursion for lookup values - they can also have parameters, e.g. row level security ones
foreach (DataStructureColumn column in entity.Columns)
{
if (column.UseLookupValue)
{
BuildFilterParameters(command, column.FinalLookup.ValueDataStructure, null, replaceParameterTexts, parameters);
}
}
}
}
private IDbDataParameter BuildParameter(string paramName,
ParameterReference parameterRef)
{
IDatabaseDataTypeMapping mappableDataType = parameterRef.Parameter
as IDatabaseDataTypeMapping;
return BuildParameter(paramName, null,
parameterRef.Parameter.DataType,
mappableDataType?.MappedDataType,
parameterRef.Parameter.DataLength,
parameterRef.Parameter.AllowNulls);
}
public void BuildSelectParameters(IDbCommand command, Hashtable parameterReferences)
{
foreach (DictionaryEntry entry in parameterReferences)
{
ParameterReference parameterRef = entry.Value as ParameterReference;
string paramName = (string)entry.Key; //RenderExpression(parameterRef, entity, replaceParameterTexts, (string)entry.Key);
if (!command.Parameters.Contains(paramName))
{
IDataParameter sqlParam = BuildParameter(paramName, parameterRef);
command.Parameters.Add(sqlParam);
}
}
}
public void BuildUpdateParameters(IDbCommand command, DataStructureEntity entity)
{
foreach (DataStructureColumn column in entity.Columns)
{
if (ShouldUpdateColumn(column, entity))
{
command.Parameters.Add(CreateNewValueParameter(column));
command.Parameters.Add(CreateOriginalValueParameter(column));
command.Parameters.Add(CreateOriginalValueParameterForNullComparison(column));
}
}
}
public void BuildInsertParameters(IDbCommand command, DataStructureEntity entity)
{
foreach (DataStructureColumn column in entity.Columns)
{
if (column.Field is FieldMappingItem && column.UseLookupValue == false && column.UseCopiedValue == false)
{
command.Parameters.Add(CreateNewValueParameter(column));
}
}
}
public void BuildDeleteParameters(IDbCommand command, DataStructureEntity entity)
{
foreach (DataStructureColumn column in entity.Columns)
{
if (column.Field is FieldMappingItem && column.UseLookupValue == false && column.UseCopiedValue == false)
{
command.Parameters.Add(CreateOriginalValueParameter(column));
command.Parameters.Add(CreateOriginalValueParameterForNullComparison(column));
}
}
}
public void BuildPrimaryKeySelectParameters(IDbCommand command, DataStructureEntity entity)
{
foreach (DataStructureColumn column in entity.Columns)
{
if (column.Field is FieldMappingItem
&& column.Field.IsPrimaryKey
&& column.UseLookupValue == false
&& column.UseCopiedValue == false)
{
command.Parameters.Add(CreateSelectRowParameter(column));
}
}
}
public void BuildUpdateFieldParameters(IDbCommand command,
FieldMappingItem column)
{
command.Parameters.Add(BuildParameter(
sqlRenderer.ParameterDeclarationChar + column.Name,
column.Name,
column.DataType,
column.MappedDataType,
column.DataLength,
true)
);
}
private IDataParameter CreateNewValueParameter(
DataStructureColumn column)
{
FieldMappingItem dbField = GetDatabaseField(column);
return BuildParameter(
NewValueParameterName(column, true),
column.Name,
dbField.DataType,
dbField.MappedDataType,
dbField.DataLength,
true);
}
private IDataParameter CreateSelectRowParameter(
DataStructureColumn column)
{
FieldMappingItem dbField = GetDatabaseField(column);
return BuildParameter(
NewValueParameterName(column, true),
column.Name,
OrigamDataType.Array,
null,
dbField.DataLength,
true);
}
private static FieldMappingItem GetDatabaseField(
DataStructureColumn column)
{
FieldMappingItem dbField = column.Field as FieldMappingItem;
if (dbField == null)
{
throw new InvalidCastException(
"Only database fields can be processed.");
}
return dbField;
}
private IDataParameter CreateOriginalValueParameter(
DataStructureColumn column)
{
FieldMappingItem dbField = GetDatabaseField(column);
IDataParameter result = BuildParameter(
OriginalParameterName(column, true),
column.Name,
dbField.DataType,
dbField.MappedDataType,
dbField.DataLength,
true);
result.SourceVersion = DataRowVersion.Original;
result.Direction = ParameterDirection.Input;
return result;
}
private IDataParameter CreateOriginalValueParameterForNullComparison(
DataStructureColumn column)
{
FieldMappingItem dbField = GetDatabaseField(column);
IDataParameter result = BuildParameter(
OriginalParameterNameForNullComparison(column, true),
column.Name,
dbField.DataType,
dbField.MappedDataType,
dbField.DataLength,
true);
result.SourceVersion = DataRowVersion.Original;
result.Direction = ParameterDirection.Input;
return result;
}
#region Main SQL Command Rendering
public string TableListDefinitionDdl(SchemaItemCollection tables)
{
StringBuilder ddl = new StringBuilder();
foreach (TableMappingItem table in tables)
{
if (table.DatabaseObjectType == DatabaseMappingObjectType.Table)
{
ddl.Append(TableDefinitionDdl(table));
ddl.Append(Environment.NewLine);
ddl.Append(Environment.NewLine);
}
}
return ddl.ToString();
}
public string ForeignKeyConstraintsDdl(TableMappingItem table)
{
string result = "";
foreach (DataEntityConstraint constraint in table.Constraints)
{
if (constraint.Type == ConstraintType.ForeignKey)
{
result += Environment.NewLine + AddForeignKeyConstraintDdl(table, constraint);
}
}
return result;
}
public string AddForeignKeyConstraintDdl(TableMappingItem table, DataEntityConstraint constraint)
{
StringBuilder ddl = new StringBuilder();
ddl.AppendFormat("ALTER TABLE {0} ADD {1}",
sqlRenderer.NameLeftBracket + table.MappedObjectName + sqlRenderer.NameRightBracket,
ForeignKeyConstraintDdl(table, constraint));
return ddl.ToString();
}
public string ParameterDeclarationChar =>
sqlRenderer.ParameterDeclarationChar;
public string ForeignKeyConstraintDdl(TableMappingItem table, DataEntityConstraint constraint)
{
StringBuilder ddl = new StringBuilder();
if (constraint.ForeignEntity is TableMappingItem && constraint.Fields[0] is FieldMappingItem)
{
string pkTableName = (constraint.ForeignEntity as TableMappingItem).MappedObjectName;
ddl.AppendFormat("CONSTRAINT {1}",
sqlRenderer.NameLeftBracket + table.MappedObjectName + sqlRenderer.NameRightBracket,
sqlRenderer.NameLeftBracket + "FK_" + table.MappedObjectName + "_" +
(constraint.Fields[0] as FieldMappingItem).MappedColumnName + "_" + pkTableName + sqlRenderer.NameRightBracket);
ddl.Append(Environment.NewLine + "\tFOREIGN KEY (");
int i = 0;
foreach (FieldMappingItem field in constraint.Fields)
{
if (i > 0) ddl.Append(", ");
ddl.Append(Environment.NewLine + "\t\t" + RenderExpression(field, null));
i++;
}
ddl.Append(Environment.NewLine + "\t)" + Environment.NewLine);
ddl.AppendFormat(Environment.NewLine + "\tREFERENCES {0} (",
sqlRenderer.NameLeftBracket + pkTableName + sqlRenderer.NameRightBracket);
i = 0;
foreach (FieldMappingItem field in constraint.Fields)
{
if (i > 0) ddl.Append(", ");
ddl.Append(Environment.NewLine + "\t\t" + RenderExpression(field.ForeignKeyField, null, null, null, null));
i++;
}
ddl.Append(Environment.NewLine + "\t);");
}
return ddl.ToString();
}
public string AddColumnDdl(FieldMappingItem field)
{
StringBuilder ddl = new StringBuilder();
ddl.AppendFormat("ALTER TABLE {0} ADD {1}",
RenderExpression(field.ParentItem as TableMappingItem),
ColumnDefinitionDdl(field));
if (!field.AllowNulls && field.DefaultValue != null)
{
string constraintName = "DF_" + (field.ParentItem as TableMappingItem).MappedObjectName + "_" + field.MappedColumnName;
ddl.AppendFormat(" CONSTRAINT {0} DEFAULT {1};",
sqlRenderer.NameLeftBracket + constraintName + sqlRenderer.NameRightBracket,
this.RenderConstant(field.DefaultValue, false));
ddl.Append(Environment.NewLine);
ddl.Append(DropDefaultValue(field,constraintName));
}
return ddl.ToString();
}
internal abstract string DropDefaultValue(FieldMappingItem field, string constraintName);
public string AlterColumnDdl(FieldMappingItem field)
{
StringBuilder ddl = new StringBuilder();
ddl.AppendFormat("ALTER TABLE {0} ALTER COLUMN {1}",
RenderExpression(field.ParentItem as TableMappingItem),
ChangeColumnDefinitionDdl(field));
return ddl.ToString();
}
private string ChangeColumnDefinitionDdl(FieldMappingItem field)
{
StringBuilder ddl = new StringBuilder();
ddl.AppendFormat("{0} ",
sqlRenderer.NameLeftBracket + field.MappedColumnName + sqlRenderer.NameRightBracket);
ddl.Append(ChangeColumnDef(field));
return ddl.ToString();
}
internal abstract string ChangeColumnDef(FieldMappingItem field);
internal string ColumnDefinitionDdl(FieldMappingItem field)
{
StringBuilder ddl = new StringBuilder();
// fname | varchar(20) | NOT NULL | PRIMARY KEY
ddl.AppendFormat("{0} {1}",
sqlRenderer.NameLeftBracket + field.MappedColumnName + sqlRenderer.NameRightBracket,
DdlDataType(field.DataType, field.DataLength, field.MappedDataType)
);
if (field.AllowNulls)
ddl.Append(" NULL");
else
ddl.Append(" NOT NULL");
if (field.IsPrimaryKey)
ddl.Append(SqlPrimaryIndex());
return ddl.ToString();
}
protected abstract string SqlPrimaryIndex();
public string IndexDefinitionDdl(IDataEntity entity, DataEntityIndex index, bool complete)
{
StringBuilder ddl = new StringBuilder();
ddl.AppendFormat("CREATE {0} INDEX {1} ON {2} (",
(index.IsUnique ? "UNIQUE " : ""),
sqlRenderer.NameLeftBracket + GetIndexName(entity, index) + sqlRenderer.NameRightBracket,
sqlRenderer.NameLeftBracket + (index.ParentItem as TableMappingItem).MappedObjectName + sqlRenderer.NameRightBracket
);
int i = 0;
ArrayList sortedFields = index.ChildItemsByType(DataEntityIndexField.CategoryConst);
sortedFields.Sort();
foreach (DataEntityIndexField field in sortedFields)
{
if (i > 0) ddl.Append(", ");
ddl.AppendFormat("{0} {1}",
RenderExpression(field.Field, null, null, null, null),
field.SortOrder == DataEntityIndexSortOrder.Descending ? "DESC" : "ASC");
i++;
}
ddl.Append(");");
return ddl.ToString();
}
public abstract string DefaultDdlDataType(OrigamDataType columnType);
public abstract IDbDataParameter BuildParameter(string paramName,
string sourceColumn, OrigamDataType dataType, DatabaseDataType dbDataType,
int dataLength, bool allowNulls);
public string DdlDataType(OrigamDataType columnType,
DatabaseDataType dbDataType)
{
if (dbDataType != null)
{
return dbDataType.MappedDatabaseTypeName;
}
else
{
return DefaultDdlDataType(columnType);
}
}
public string TableDefinitionDdl(TableMappingItem table)
{
if (table.DatabaseObjectType != DatabaseMappingObjectType.Table)
{
throw new InvalidOperationException(ResourceUtils.GetString("CantDDLScript", table.DatabaseObjectType.ToString()));
}
StringBuilder ddl = new StringBuilder();
ddl.AppendFormat("CREATE TABLE {0} (",
sqlRenderer.NameLeftBracket + table.MappedObjectName + sqlRenderer.NameRightBracket);
int i = 0;
foreach (ISchemaItem item in table.EntityColumns)
{
if (item is FieldMappingItem)
{
FieldMappingItem field = item as FieldMappingItem;
if (i > 0) ddl.Append(",");
ddl.Append(Environment.NewLine + "\t" + ColumnDefinitionDdl(field));
i++;
}
}
ddl.Append(");");
if (table.EntityIndexes.Count > 0)
{
foreach (DataEntityIndex index in table.EntityIndexes)
{
ddl.Append(Environment.NewLine);
ddl.Append(IndexDefinitionDdl(table, index, false));
}
}
return ddl.ToString();
}
public string SelectParameterDeclarationsSql(DataStructureFilterSet filter, bool paging,
string columnName)
{
StringBuilder result = new StringBuilder();
Hashtable ht = new Hashtable();
DataStructure ds = filter.RootItem as DataStructure;
result.AppendLine(sqlRenderer.CreateDataStructureHead());
foreach (DataStructureEntity entity in ds.Entities)
{
SelectParameterDeclarationsSql(result, ht, ds, entity, filter, null, paging,
columnName);
}
result.AppendLine(sqlRenderer.DeclareBegin());
SelectParameterDeclarationsSetSql(result, ht);
return result.ToString();
}
public string SelectParameterDeclarationsSql(DataStructure ds, DataStructureEntity entity,
DataStructureFilterSet filter, bool paging, string columnName)
{
StringBuilder result = new StringBuilder();
Hashtable ht = new Hashtable();
SelectParameterDeclarationsSql(result, ht, ds, entity, filter, null, paging, columnName);
return result.ToString();
}
public string SelectParameterDeclarationsSql(DataStructure ds,
DataStructureSortSet sort, bool paging, string columnName)
{
StringBuilder result = new StringBuilder();
Hashtable ht = new Hashtable();
result.AppendLine(sqlRenderer.CreateDataStructureHead());
foreach (DataStructureEntity entity in ds.Entities)
{
SelectParameterDeclarationsSql(result, ht, ds, entity, null, sort, paging, columnName);
}
result.AppendLine(sqlRenderer.DeclareBegin());
SelectParameterDeclarationsSetSql(result, ht);
return result.ToString();
}
internal ArrayList Parameters(IDbCommand cmd)
{
int declarationLength = sqlRenderer.ParameterDeclarationChar.Length;
ArrayList list = new ArrayList(cmd.Parameters.Count);
foreach (IDataParameter param in cmd.Parameters)
{
list.Add(param.ParameterName.Substring(declarationLength));
}
list.Sort();
return list;
}
internal IDbCommand SelectCommand(DataStructure ds, DataStructureEntity entity,
DataStructureFilterSet filter, DataStructureSortSet sort, bool paging,
string columnName)
{
var adapterParameters = new SelectParameters
{
DataStructure = ds,
Entity = entity,
Filter = filter,
SortSet = sort,
Parameters = new Hashtable(),
Paging = paging,
ColumnsInfo = new ColumnsInfo(columnName),
};
DbDataAdapter adapter = CreateDataAdapter(adapterParameters, false);
return ((IDbDataAdapter)adapter).SelectCommand;
}
public ArrayList Parameters(DataStructure ds, DataStructureEntity entity,
DataStructureFilterSet filter, DataStructureSortSet sort, bool paging,
string columnName)
{
IDbCommand cmd = SelectCommand(ds, entity, filter, sort, paging, columnName);
return Parameters(cmd);
}
internal void SelectParameterDeclarationsSql(StringBuilder result, Hashtable ht,
DataStructure ds, DataStructureEntity entity, DataStructureFilterSet filter,
DataStructureSortSet sort, bool paging, string columnName)
{
IDbCommand cmd = SelectCommand(ds, entity, filter, sort, paging, columnName);
ArrayList list = Parameters(cmd);
foreach (string paramName in list)
{
IDataParameter param = cmd.Parameters[sqlRenderer.ParameterDeclarationChar + paramName] as IDataParameter;
if (!ht.Contains(param.ParameterName))
{
result.AppendFormat("DECLARE {0} "+ sqlRenderer.DeclareAsSql() + " {1};{2}",
param.ParameterName,
SqlDataType(param),
Environment.NewLine);
ht.Add(param.ParameterName, null);
}
}
}
internal abstract string SqlDataType(IDataParameter param);
internal void SelectParameterDeclarationsSetSql(StringBuilder result, Hashtable parameters)
{
foreach (string name in parameters.Keys)
{
result.Append(sqlRenderer.SetParameter(name));
}
}
public string SelectSql(DataStructure ds, DataStructureEntity entity,
DataStructureFilterSet filter, DataStructureSortSet sortSet, ColumnsInfo columnsInfo,
Hashtable parameters, Hashtable selectParameterReferences,
bool paging)
{
return SelectSql(new SelectParameters
{
Entity = entity,
DataStructure = ds,
Filter = filter,
ColumnsInfo = columnsInfo,
SortSet = sortSet,
Parameters = parameters,
Paging = paging
},
replaceParameterTexts: null,
selectParameterReferences: selectParameterReferences,
restrictScalarToTop1: true,
isInRecursion: false,
forceDatabaseCalculation: false);
}
public string SelectSql(DataStructure ds, DataStructureEntity entity,
DataStructureFilterSet filter, DataStructureSortSet sortSet, ColumnsInfo columnsInfo,
Hashtable parameters, Hashtable selectParameterReferences, bool paging,
bool forceDatabaseCalculation)
{
return SelectSql( new SelectParameters
{
Entity = entity,
DataStructure = ds,
Filter = filter,
ColumnsInfo = columnsInfo,
SortSet = sortSet,
Parameters = parameters,
Paging = paging
}, replaceParameterTexts: null,
selectParameterReferences: selectParameterReferences,
restrictScalarToTop1: true,
isInRecursion: false,
forceDatabaseCalculation: forceDatabaseCalculation);
}
public string SelectSql(DataStructure ds, DataStructureEntity entity,
DataStructureFilterSet filter, DataStructureSortSet sortSet, ColumnsInfo columnsInfo,
Hashtable replaceParameterTexts, Hashtable dynamicParameters,
Hashtable selectParameterReferences, bool forceDatabaseCalculation)
{
return SelectSql(
selectParameters: new SelectParameters
{
Entity = entity,
DataStructure = ds,
Filter = filter,
ColumnsInfo = columnsInfo,
SortSet = sortSet,
Parameters = dynamicParameters,
Paging = false
},
replaceParameterTexts: replaceParameterTexts,
selectParameterReferences: selectParameterReferences,
restrictScalarToTop1: true,
isInRecursion: false,
forceDatabaseCalculation: forceDatabaseCalculation);
}
internal string SelectSql(SelectParameters selectParameters,
Hashtable replaceParameterTexts, Hashtable selectParameterReferences,
bool restrictScalarToTop1,
bool isInRecursion, bool forceDatabaseCalculation,
FilterCommandParser filterCommandParser = null,
OrderByCommandParser orderByCommandParser = null)
{
var entity = selectParameters.Entity;
var paging = selectParameters.Paging;
var ds = selectParameters.DataStructure;
var sortSet = selectParameters.SortSet;
var columnsInfo = selectParameters.ColumnsInfo;
var dynamicParameters = selectParameters.Parameters;
var customOrdering = selectParameters.CustomOrderings;
var customGrouping = selectParameters.CustomGrouping;
var filter = selectParameters.Filter;
var rowLimit = selectParameters.RowLimit;
var rowOffset = selectParameters.RowOffset;
bool rowOffsetSpecified = rowOffset.HasValue && rowOffset != 0;