private static void _BuildDbRowsValues(bool rkOnly, bool withRowID, NodeMap nodeMap, List <IPropertyAccessor> getters, StringBuilder sql,
bool firstRow, DbRow row, object[] originalValues, ref int j,
ref int gi)
{
int ov = 0; // original values index
foreach (var column in nodeMap.SortedColumns)
{
if (rkOnly && !column.IsRK)
{
++gi;
continue;
}
if (j != 0)
{
sql.Append(Text.Comma);
}
var value = getters[gi].GetValue(row);
value = column.TryCorrectMinWeakDatetime(value, row);
AppendColumnValue(sql, value, j + 1, column.DataType, (firstRow && column.DataType.DT == DT.Sqlvariant));
++j;
++gi;
if (withRowID && column.IsRK)
{
if (j != 0)
{
sql.Append(Text.Comma);
}
AppendColumnValue(sql, originalValues[ov], j + 1, column.DataType, (firstRow && column.DataType.DT == DT.Sqlvariant));
++j;
++ov;
}
}
}
internal static object TryCorrectMinWeakDatetime(this ColumnMap column, object value, DbRow row)
{
if (Admin.IsDateTimeMinCorrectionOn &&
value != null &&
column.DataType.DT.IsWeakDateTime() &&
(DateTime)value == DateTime.MinValue &&
!row.SetColumns.Contains(column.ID.ColumnZ))
{
// datetime:
if (column.DataType.DT == DT.Datetime)
{
return(Common.DatetimeMinSql);
}
// smalldatetime:
else
{
return(Common.DatetimeMinSql);
}
}
else
{
return(value);
}
}
internal static Result <T> DeleteCascadeGo <T>(Assembly client, DbRow row, int maxLevels, ConnectBy connectBy)
where T : DbRow
{
var name = Text.NotAvailable;
try
{
if (row == null)
{
throw new QueryTalkException("Crud.GoDeleteCascade", QueryTalkExceptionType.ArgumentNull, "row = null",
Text.Method.DeleteCascadeGo);
}
Crud.CheckTable(row, Text.Method.DeleteCascadeGo);
CrudProcedure cached = row.NodeID.TryGetProcedure(CrudProcedureType.DeleteCascadeGo);
Procedure proc;
if (cached == null)
{
var map = DbMapping.TryGetNodeMap(row);
var where = map.BuildRKPredicate(row.GetOriginalRKValues(), 0);
Chainer workingProc = Designer.GetNewDesigner(Text.Method.DeleteCascadeGo, true, true)
.ParamNodeColumns(row.NodeID, ColumnSelector.RK);
// collect all linked nodes using GetChildren method
List <NodeTree> tree = new List <NodeTree>();
((ITable)((INode <T>)row).Node).LoadChildren(ref tree, 1, maxLevels);
// loop through all leaves
foreach (var node in tree.OrderByDescending(a => a.Level))
{
workingProc = BuildQuery(tree, node, node, node.Level, workingProc, where, true);
}
// delete root row & create Procedure object
proc = ((IFrom)workingProc)
.From(map.Name).As(0)
.Where(where)
.Delete(Text.Zero)
.EndProcInternal();
Cache.CrudProcedures.Add(new CrudProcedure(row.NodeID, CrudProcedureType.DeleteCascadeGo, proc));
}
else
{
proc = cached.Procedure;
}
var rkValues = row.GetOriginalRKValues();
var args = new List <ParameterArgument>();
foreach (var value in rkValues)
{
args.Add(new ParameterArgument(new Value(value)));
}
var cpass = proc.Pass(args.ToArray());
cpass.SetRootMap(row.NodeID);
var connectable = Reader.GetConnectable(client, row, cpass, connectBy);
var result = connectable.Go();
return(new Result <T>(true, -1));
}
catch (QueryTalkException)
{
throw;
}
catch (System.Exception ex)
{
throw Crud.ClrException(ex, name, Text.Method.DeleteCascadeGo);
}
}
// isSilent:
// if true, then this method is used by other CRUD method (.UpdateGo/.InsertGo) which requires special treatment.
internal static Result <T> ReloadGo <T>(Assembly client, DbRow row, bool forceMirroring, ConnectBy connectBy,
bool isSilent = false)
where T : DbRow
{
var name = Text.NotAvailable;
try
{
ColumnSelector selector = forceMirroring ? ColumnSelector.All : ColumnSelector.RK;
if (isSilent)
{
selector = ColumnSelector.RK;
}
if (row == null)
{
throw new QueryTalkException("Crud.GoReload", QueryTalkExceptionType.ArgumentNull, "row = null", Text.Method.ReloadGo);
}
Crud.CheckTable(row, Text.Method.ReloadGo);
List <ParameterArgument> args = new List <ParameterArgument>();
var map = DbMapping.TryGetNodeMap(row);
name = map.Name.Sql;
if (forceMirroring)
{
if (!row.GetStatus().IsUpdatable())
{
var arguments = map.BuildExceptionReport(row.GetOriginalRKValues(), row.GetOriginalRowversionValue());
throw new QueryTalkException("Crud.ReloadGo", QueryTalkExceptionType.InvalidMirroring,
arguments, Text.Method.ReloadGo).SetObjectName(map.Name.Sql);
}
}
object[] originalValues;
if (selector == ColumnSelector.All)
{
if (map.HasRowversion)
{
originalValues = new object[] { row.GetOriginalRowversionValue() };
}
else
{
originalValues = row.GetOriginalValues();
}
}
// RK selector
else
{
originalValues = row.GetOriginalRKValues();
}
for (int i = 0; i < originalValues.Length; ++i)
{
args.Add(new ParameterArgument(new Value(originalValues[i])));
}
args.Add(map.Name);
if (selector == ColumnSelector.All)
{
args.Add(new ParameterArgument(map.BuildOptimisticPredicate(originalValues, 1)));
}
else
{
args.Add(new ParameterArgument(map.BuildRKPredicate(originalValues, 1)));
}
var cpass = ReloadProc(row.NodeID, selector).Pass(args.ToArray());
cpass.SetRootMap(row.NodeID); // important!
Connectable connectable = Reader.GetConnectable(client, row, cpass, connectBy);
var result = connectable.Go <T>();
// success
if (result.RowCount > 0)
{
PropertyAccessor.SetValues(row, result.First().GetOriginalValues());
row.SetStatus(DbRowStatus.Loaded);
return(new Result <T>(true, 0));
}
// not found
else
{
var arguments = map.BuildExceptionReport(row.GetOriginalRKValues(), row.GetOriginalRowversionValue());
if (!isSilent)
{
if (forceMirroring)
{
throw new QueryTalkException("Crud.ReloadGo", QueryTalkExceptionType.ConcurrencyViolation,
arguments, Text.Method.ReloadGo).SetObjectName(map.Name.Sql);
}
else
{
throw new QueryTalkException("Crud.ReloadGo", QueryTalkExceptionType.ReloadFailed,
arguments, Text.Method.ReloadGo).SetObjectName(map.Name.Sql);
}
}
else
{
row.SetStatus(DbRowStatus.Faulted);
return(new Result <T>(true, 0));
}
}
}
catch (QueryTalkException ex)
{
Loader.TryThrowInvalidSqlOperationException(ex, name, Text.Method.ReloadGo);
throw;
}
catch (System.Exception ex)
{
var ex2 = Crud.ClrException(ex, name, Text.Method.ReloadGo);
Loader.TryThrowInvalidSqlOperationException(ex2, name);
throw ex2;
}
}
internal static View ConvertDbRowData(IEnumerable <DbRow> rows, bool rkOnly = false, bool withRowID = false)
{
var first = rows.Where(row => row != null).First();
var nodeMap = DbMapping.GetNodeMap(first.NodeID);
if (nodeMap.ID.Equals(DB3.Default))
{
DbRow.ThrowInvalidDbRowException(first.GetType());
}
var rowCount = 0;
var columns = new List <ViewColumnInfo>();
var type = first.GetType();
var properties = type.GetSortedWritableProperties(withRowID);
var numberOfProperties = properties.Length;
if (numberOfProperties == 0)
{
throw new QueryTalkException("ViewConverter.ToView<T>", QueryTalkExceptionType.InvalidDataClass,
String.Format("data class = {0}", type));
}
List <IPropertyAccessor> getters;
bool cached;
if (withRowID)
{
cached = Cache.IRowAccessors.TryGetValue(type, out getters);
}
else
{
cached = Cache.PropertyAccessors.TryGetValue(type, out getters);
}
if (!cached)
{
getters = _GetDbRowsGetters(withRowID, type, properties);
}
var sql = Text.GenerateSql(500)
.Append(Text.Select).S();
int i = 0;
i = _BuildDbRowsOuterSelect(rkOnly, withRowID, nodeMap, columns, sql, i);
if (withRowID)
{
sql.NewLineIndent(Text.Comma);
AppendColumn(sql,
String.Format("CAST({0} AS [int])", Filter.DelimitNonAsterix(String.Format("{0}{1}", Text.ColumnShortName, i + 1))),
Text.Reserved.QtRowIDColumnName);
}
sql.S()
.NewLine(Text.From).S()
.Append(Text.LeftBracket).S();
bool firstRow = true;
foreach (var row in rows)
{
if (row == null)
{
continue;
}
if (!firstRow)
{
sql.NewLineIndent(Text.UnionAll).S()
.Append(Text.Select).S();
}
else
{
sql.NewLineIndent(Text.Select).S();
}
var originalValues = row.GetOriginalRKValues();
var gi = 0; // getter index
int j = 0;
_BuildDbRowsValues(rkOnly, withRowID, nodeMap, getters, sql, firstRow, row, originalValues, ref j,
ref gi);
if (withRowID)
{
var value = getters[gi].GetValue(row);
sql.Append(Text.Comma);
AppendColumnValue(sql, value, j + 1);
}
firstRow = false;
++rowCount;
}
sql.NewLine(Text.RightBracket).S()
.Append(Text.As).S()
.Append(Text.DelimitedTargetAlias);
return(new View(sql.ToString(), typeof(DbRow), columns.ToArray(), rowCount));
}
private static Connectable GetDeleteBody(Assembly client, DbRow row, bool forceMirroring, ConnectBy connectBy,
string method, ref string name, out NodeMap map)
{
if (row == null)
{
throw new QueryTalkException("Crud", QueryTalkExceptionType.ArgumentNull, "row = null", method);
}
Crud.CheckTable(row, method);
ColumnSelector selector = forceMirroring ? ColumnSelector.All : ColumnSelector.RK;
List <ParameterArgument> args = new List <ParameterArgument>();
map = DbMapping.TryGetNodeMap(row);
name = map.Name.Sql;
if (forceMirroring)
{
if (!row.GetStatus().IsUpdatable())
{
var arguments = map.BuildExceptionReport(row.GetOriginalRKValues(), row.GetOriginalRowversionValue());
throw new QueryTalkException("Crud.DeleteGo", QueryTalkExceptionType.InvalidMirroring,
arguments, Text.Method.DeleteGo).SetObjectName(map.Name.Sql);
}
}
object[] originalValues;
if (selector == ColumnSelector.All)
{
if (map.HasRowversion)
{
originalValues = new object[] { row.GetOriginalRowversionValue() };
}
else
{
originalValues = row.GetOriginalValues();
}
}
// RK selector
else
{
originalValues = row.GetOriginalRKValues();
}
for (int i = 0; i < originalValues.Length; ++i)
{
args.Add(new ParameterArgument(new Value(originalValues[i])));
}
args.Add(map.Name);
if (selector == ColumnSelector.All)
{
args.Add(new ParameterArgument(map.BuildOptimisticPredicate(originalValues, 1)));
}
else
{
args.Add(new ParameterArgument(map.BuildRKPredicate(originalValues, 1)));
}
var cpass = DeleteProc(row.NodeID, selector).Pass(args.ToArray());
cpass.SetRootMap(row.NodeID); // important!
return(Reader.GetConnectable(client, row, cpass, connectBy));
}
private static void _BuildClassOuterSelect(Type type, ref Type clrType, ref QueryTalkException exception, List <ViewColumnInfo> columns,
bool isEmpty, PropertyInfo[] properties, out List <IPropertyAccessor> getters, out int numberOfProperties,
StringBuilder sqlOuter, StringBuilder sqlEmpty)
{
numberOfProperties = properties.Length;
if (numberOfProperties == 0)
{
throw new QueryTalkException("ViewConverter.ToView<T>", QueryTalkExceptionType.InvalidDataClass,
String.Format("data class = {0}", type));
}
bool cached = Cache.PropertyAccessors.TryGetValue(type, out getters);
if (!cached)
{
getters = new List <IPropertyAccessor>();
}
NodeMap rowMap = null;
bool isDbRow = type.IsDbRow();
if (isDbRow)
{
rowMap = DbMapping.GetNodeMap(type);
if (rowMap.ID.Equals(DB3.Default))
{
DbRow.ThrowInvalidDbRowException(type);
}
}
// outer select:
int i = 0;
foreach (var property in properties)
{
string column;
var clrTypeMatch = Mapping.CheckClrCompliance(property.PropertyType, out clrType, out exception);
if (clrTypeMatch != Mapping.ClrTypeMatch.ClrMatch)
{
continue;
}
ViewColumnInfo columnInfo;
if (isDbRow)
{
var rowColumn = rowMap.Columns.Where(a => a.ID.ColumnZ == i + 1).First();
column = rowColumn.Name.Part1;
columnInfo = new ViewColumnInfo(column, rowColumn.DataType, rowColumn.IsNullable);
columns.Add(columnInfo);
}
else
{
column = property.Name;
columnInfo = new ViewColumnInfo(column, property.PropertyType, clrType);
columns.Add(columnInfo);
}
if (i != 0)
{
sqlOuter.NewLineIndent(Text.Comma);
sqlEmpty.Append(Text.Comma);
}
var dataType = Mapping.ProvideDataType(columnInfo.DataType, clrType);
AppendOuterColumn(sqlOuter, dataType, i + 1, column);
if (isEmpty)
{
AppendNullValueColumn(sqlEmpty, i + 1);
}
if (!cached)
{
getters.Add(PropertyAccessor.Create(type, property));
}
++i;
}
numberOfProperties = i;
if (numberOfProperties == 0)
{
ThrowInvalidDataClassException(type);
}
if (!cached)
{
Cache.PropertyAccessors[type] = getters;
}
}
private static Connectable GetUpdateBody <T>(Assembly client, DbRow row, bool forceMirroring, ConnectBy connectBy,
string method, ref string name, out NodeMap map)
where T : DbRow
{
if (row == null)
{
throw new QueryTalkException("Crud", QueryTalkExceptionType.ArgumentNull, "row = null", method);
}
Crud.CheckTable(row, method);
ColumnSelector selector = forceMirroring ? ColumnSelector.All : ColumnSelector.RK;
List <ParameterArgument> args = new List <ParameterArgument>();
map = DbMapping.TryGetNodeMap(row);
name = map.Name.Sql;
if (forceMirroring)
{
if (!row.GetStatus().IsUpdatable())
{
var arguments = map.BuildExceptionReport(row.GetOriginalRKValues(), row.GetOriginalRowversionValue());
throw new QueryTalkException("Crud.UpdateGo", QueryTalkExceptionType.InvalidMirroring,
arguments, Text.Method.UpdateGo).SetObjectName(map.Name.Sql);
}
}
object[] originalValues;
if (selector == ColumnSelector.All)
{
if (map.HasRowversion)
{
originalValues = new object[] { row.GetOriginalRowversionValue() };
}
else
{
originalValues = row.GetOriginalValues();
}
}
// RK selector
else
{
originalValues = row.GetOriginalRKValues();
}
for (int i = 0; i < originalValues.Length; ++i)
{
args.Add(new ParameterArgument(new Value(originalValues[i])));
}
var currentValues = PropertyAccessor.GetValues(row);
var updatableColumns = row.GetUpdatableColumns(forceMirroring);
if (updatableColumns == null || updatableColumns.Length == 0)
{
return(null);
}
var valueParams = new Column[updatableColumns.Length];
int j = 0;
foreach (var column in updatableColumns)
{
var value = new Value(currentValues[column.ID.ColumnZ - 1]);
args.Add(new ParameterArgument(value));
valueParams[j] = String.Format("@v{0}", j + 1);
++j;
}
args.Add(map.Name);
if (selector == ColumnSelector.All)
{
args.Add(new ParameterArgument(map.BuildOptimisticPredicate(originalValues, 1)));
}
else
{
args.Add(new ParameterArgument(map.BuildRKPredicate(originalValues, 1)));
}
int[] modified = updatableColumns.Select(a => a.ID.ColumnZ).ToArray();
args.Add(map.Columns
.Where(a => modified.Contains(a.ID.ColumnZ))
.OrderBy(a => a.ID.ColumnZ)
.Select(a => new Column(a.Name))
.ToArray());
Column[] outputColumns;
Column[] selectColumns;
_getColumnsWithoutRowversion(map, out outputColumns, out selectColumns);
var cpass = UpdateProc <T>(map, selector, valueParams, updatableColumns, outputColumns, selectColumns).Pass(args.ToArray());
cpass.SetRootMap(row.NodeID);
return(Reader.GetConnectable(client, row, cpass, connectBy));
}
internal static Async <Result <T> > UpdateGoAsync <T>(Assembly client, DbRow row, bool forceMirroring, ConnectBy connectBy,
Action <Result <T> > onCompleted)
where T : DbRow
{
var name = Text.NotAvailable;
NodeMap map;
Crud.CheckTable(row, Text.Method.UpdateGo);
try
{
var connectable = GetUpdateBody <T>(client, row, forceMirroring, connectBy, Text.Method.UpdateGo, ref name, out map);
// no columns to modify?
if (connectable == null)
{
return(Async <Result <T> > .CreateDefault <T>());
}
return(connectable.GoAsync <T>(result =>
{
try
{
// success
if (result.ReturnValue == 1)
{
PropertyAccessor.SetValues(row, PropertyAccessor.GetValues(result.First()));
row.SetStatus(DbRowStatus.Loaded);
}
// concurrency violation
else
{
if (forceMirroring)
{
var arguments = map.BuildExceptionReport(row.GetOriginalRKValues(), row.GetOriginalRowversionValue());
throw new QueryTalkException("Crud.UpdateGoAsync", QueryTalkExceptionType.ConcurrencyViolation,
arguments, Text.Method.UpdateGoAsync).SetObjectName(map.Name.Sql);
}
}
result.FinalizeCrud();
onCompleted?.Invoke(result);
}
catch (QueryTalkException)
{
throw;
}
catch (System.Exception ex)
{
throw Crud.ClrException(ex, name, Text.Method.InsertGoAsync);
}
}));
}
catch (QueryTalkException ex)
{
Loader.TryThrowInvalidSqlOperationException(ex, name, Text.Method.UpdateGo);
throw;
}
catch (System.Exception ex)
{
var ex2 = Crud.ClrException(ex, name, Text.Method.UpdateGo);
Loader.TryThrowInvalidSqlOperationException(ex2, name);
throw ex2;
}
}
internal static Result <T> UpdateGo <T>(Assembly client, DbRow row, bool forceMirroring, ConnectBy connectBy)
where T : DbRow
{
var name = Text.NotAvailable;
NodeMap map;
try
{
var connectable = GetUpdateBody <T>(client, row, forceMirroring, connectBy, Text.Method.UpdateGo, ref name, out map);
// no columns to modify?
if (connectable == null)
{
return(new Result <T>(false, 0));
}
var result = connectable.Go <T>();
// success
if (result.ReturnValue == 1)
{
PropertyAccessor.SetValues(row, PropertyAccessor.GetValues(result.First()));
// has rowversion & it is not RK
if (row.HasNonRKRowversion)
{
row.SetStatus(DbRowStatus.Loaded);
Crud.ReloadGo <T>(client, row, true, connectBy, true);
}
else
{
// rowversion column is null:
if (map.HasRowversion && row.GetRowversionValue() == null)
{
row.SetStatus(DbRowStatus.Faulted);
}
else
{
row.SetStatus(DbRowStatus.Loaded);
}
}
result.FinalizeCrud();
return(result);
}
// optimistic concurrency violation
else
{
if (forceMirroring)
{
var arguments = map.BuildExceptionReport(row.GetOriginalRKValues(), row.GetOriginalRowversionValue());
throw new QueryTalkException("Crud.UpdateGo", QueryTalkExceptionType.ConcurrencyViolation,
arguments, Text.Method.UpdateGo).SetObjectName(map.Name.Sql);
}
else
{
result.FinalizeCrud();
return(result);
}
}
}
catch (QueryTalkException ex)
{
Loader.TryThrowInvalidSqlOperationException(ex, name, Text.Method.UpdateGo);
throw;
}
catch (System.Exception ex)
{
var ex2 = Crud.ClrException(ex, name, Text.Method.UpdateGo);
Loader.TryThrowInvalidSqlOperationException(ex2, name);
throw ex2;
}
}
private static Connectable GetInsertBody <T>(Assembly client, DbRow row, bool identityInsert, ConnectBy connectBy,
string method, ref string name)
where T : DbRow
{
if (row == null)
{
throw new QueryTalkException("Crud", QueryTalkExceptionType.ArgumentNull, "row = null", method);
}
Crud.CheckTable(row, method);
List <ParameterArgument> args = new List <ParameterArgument>();
var map = DbMapping.TryGetNodeMap(row);
name = map.Name.Sql;
if (!map.HasIdentity)
{
identityInsert = false;
}
var insertableColumns = map.GetInsertableColumns(row, identityInsert);
Column[] outputColumns;
Column[] selectColumns;
_getColumnsWithoutRowversion(map, out outputColumns, out selectColumns);
PassChainer cpass;
if (insertableColumns.Length > 0)
{
var currentValues = PropertyAccessor.GetValues(row);
var valueParams = new Column[insertableColumns.Length];
int j = 0;
foreach (var column in insertableColumns)
{
var value = new Value(currentValues[column.ID.ColumnZ - 1]);
value.Original = column.TryCorrectMinWeakDatetime(value.Original, row);
args.Add(new ParameterArgument(value));
valueParams[j] = String.Format("@v{0}", j + 1);
++j;
}
args.Add(map.Name);
args.Add(insertableColumns
.Select(a => new Column(a.Name))
.ToArray());
cpass = InsertProc <T>(insertableColumns, valueParams, identityInsert, outputColumns, selectColumns)
.Pass(args.ToArray());
}
// default values:
else
{
cpass = InsertProcDefaultValues <T>(outputColumns, selectColumns).Pass(map.Name);
}
cpass.SetRootMap(row.NodeID);
return(Reader.GetConnectable(client, row, cpass, connectBy));
}