wasCSharpSQLite – Blame information for rev
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| Rev | Author | Line No. | Line |
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| 1 | office | 1 | // |
| 2 | // Community.CsharpSqlite.SQLiteClient.SqliteCommandBuilder.cs |
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| 3 | // |
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| 4 | // Author(s): Tim Coleman (tim@timcoleman.com) |
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| 5 | // Marek Habersack (grendello@gmail.com) |
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| 6 | // |
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| 7 | // Copyright (C) Tim Coleman, 2002 |
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| 8 | // Copyright (C) 2004 Novell, Inc (http://www.novell.com) |
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| 9 | // Copyright (C) 2007 Marek Habersack |
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| 10 | // |
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| 11 | // Permission is hereby granted, free of charge, to any person obtaining |
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| 12 | // a copy of this software and associated documentation files (the |
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| 13 | // "Software"), to deal in the Software without restriction, including |
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| 14 | // without limitation the rights to use, copy, modify, merge, publish, |
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| 15 | // distribute, sublicense, and/or sell copies of the Software, and to |
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| 16 | // permit persons to whom the Software is furnished to do so, subject to |
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| 17 | // the following conditions: |
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| 18 | // |
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| 19 | // The above copyright notice and this permission notice shall be |
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| 20 | // included in all copies or substantial portions of the Software. |
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| 21 | // |
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| 22 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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| 23 | // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 24 | // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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| 25 | // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
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| 26 | // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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| 27 | // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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| 28 | // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 29 | // |
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| 30 | |||
| 31 | using System; |
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| 32 | using System.Data; |
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| 33 | using System.Data.Common; |
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| 34 | using System.Text; |
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| 35 | |||
| 36 | namespace Community.CsharpSqlite.SQLiteClient |
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| 37 | { |
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| 38 | public sealed class SqliteCommandBuilder : DbCommandBuilder |
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| 39 | { |
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| 40 | static readonly string clause1 = "({0} = 1 AND {1} IS NULL)"; |
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| 41 | static readonly string clause2 = "({0} = {1})"; |
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| 42 | |||
| 43 | DataTable _schemaTable; |
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| 44 | SqliteDataAdapter _dataAdapter; |
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| 45 | SqliteCommand _insertCommand; |
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| 46 | SqliteCommand _updateCommand; |
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| 47 | SqliteCommand _deleteCommand; |
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| 48 | bool _disposed; |
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| 49 | string _quotePrefix = "'"; |
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| 50 | string _quoteSuffix = "'"; |
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| 51 | string _tableName; |
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| 52 | SqliteRowUpdatingEventHandler rowUpdatingHandler; |
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| 53 | |||
| 54 | public new DbDataAdapter DataAdapter { |
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| 55 | get { return _dataAdapter; } |
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| 56 | set { |
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| 57 | if (_dataAdapter != null) |
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| 58 | _dataAdapter.RowUpdating -= new SqliteRowUpdatingEventHandler (RowUpdatingHandler); |
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| 59 | _dataAdapter = value as SqliteDataAdapter; |
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| 60 | if (_dataAdapter != null) |
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| 61 | _dataAdapter.RowUpdating += new SqliteRowUpdatingEventHandler (RowUpdatingHandler); |
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| 62 | } |
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| 63 | } |
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| 64 | |||
| 65 | public override string QuotePrefix { |
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| 66 | get { return _quotePrefix; } |
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| 67 | |||
| 68 | set { |
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| 69 | if (_schemaTable != null) |
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| 70 | throw new InvalidOperationException ("The QuotePrefix and QuoteSuffix properties cannot be changed once an Insert, Update or Delete commands have been generated."); |
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| 71 | _quotePrefix = value; |
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| 72 | } |
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| 73 | } |
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| 74 | |||
| 75 | public override string QuoteSuffix { |
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| 76 | get { return _quoteSuffix; } |
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| 77 | |||
| 78 | set { |
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| 79 | if (_schemaTable != null) |
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| 80 | throw new InvalidOperationException ("The QuotePrefix and QuoteSuffix properties cannot be changed once an Insert, Update or Delete commands have been generated."); |
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| 81 | _quoteSuffix = value; |
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| 82 | } |
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| 83 | } |
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| 84 | |||
| 85 | private SqliteCommand SourceCommand { |
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| 86 | get { |
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| 87 | if (_dataAdapter != null) |
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| 88 | return _dataAdapter.SelectCommand as SqliteCommand; |
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| 89 | return null; |
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| 90 | } |
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| 91 | } |
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| 92 | |||
| 93 | private string QuotedTableName { |
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| 94 | get { return GetQuotedString (_tableName); } |
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| 95 | } |
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| 96 | |||
| 97 | public new SqliteCommand GetDeleteCommand () |
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| 98 | { |
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| 99 | BuildCache (true); |
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| 100 | if (_deleteCommand == null) |
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| 101 | return CreateDeleteCommand (false); |
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| 102 | return _deleteCommand; |
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| 103 | } |
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| 104 | |||
| 105 | public new SqliteCommand GetInsertCommand () |
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| 106 | { |
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| 107 | BuildCache (true); |
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| 108 | if (_insertCommand == null) |
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| 109 | return CreateInsertCommand (false); |
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| 110 | return _insertCommand; |
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| 111 | } |
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| 112 | |||
| 113 | public new SqliteCommand GetUpdateCommand () |
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| 114 | { |
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| 115 | BuildCache (true); |
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| 116 | if (_updateCommand == null) |
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| 117 | return CreateUpdateCommand (false); |
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| 118 | return _updateCommand; |
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| 119 | } |
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| 120 | |||
| 121 | public override void RefreshSchema () |
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| 122 | { |
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| 123 | // FIXME: "Figure out what else needs to be cleaned up when we refresh." |
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| 124 | _tableName = String.Empty; |
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| 125 | _schemaTable = null; |
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| 126 | CreateNewCommand (ref _deleteCommand); |
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| 127 | CreateNewCommand (ref _updateCommand); |
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| 128 | CreateNewCommand (ref _insertCommand); |
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| 129 | } |
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| 130 | |||
| 131 | protected override void SetRowUpdatingHandler (DbDataAdapter adapter) |
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| 132 | { |
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| 133 | if (!(adapter is SqliteDataAdapter)) { |
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| 134 | throw new InvalidOperationException ("Adapter needs to be a SqliteDataAdapter"); |
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| 135 | } |
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| 136 | rowUpdatingHandler = new SqliteRowUpdatingEventHandler (RowUpdatingHandler); |
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| 137 | ((SqliteDataAdapter) adapter).RowUpdating += rowUpdatingHandler; |
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| 138 | } |
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| 139 | |||
| 140 | protected override void ApplyParameterInfo (DbParameter dbParameter, |
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| 141 | DataRow row, |
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| 142 | StatementType statementType, |
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| 143 | bool whereClause) |
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| 144 | { |
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| 145 | // Nothing to do here |
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| 146 | } |
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| 147 | |||
| 148 | protected override string GetParameterName (int position) |
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| 149 | { |
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| 150 | return String.Format ("?p{0}", position); |
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| 151 | } |
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| 152 | |||
| 153 | protected override string GetParameterName (string parameterName) |
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| 154 | { |
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| 155 | if (string.IsNullOrEmpty(parameterName)) |
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| 156 | throw new ArgumentException ("parameterName cannot be null or empty"); |
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| 157 | if (parameterName [0] == '?') |
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| 158 | return parameterName; |
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| 159 | return String.Format ("?{0}", parameterName); |
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| 160 | } |
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| 161 | |||
| 162 | |||
| 163 | protected override string GetParameterPlaceholder (int position) |
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| 164 | { |
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| 165 | return String.Format ("?p{0}", position); |
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| 166 | } |
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| 167 | |||
| 168 | protected override void Dispose (bool disposing) |
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| 169 | { |
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| 170 | if (!_disposed) { |
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| 171 | if (disposing) { |
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| 172 | if (_insertCommand != null) |
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| 173 | _insertCommand.Dispose (); |
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| 174 | if (_deleteCommand != null) |
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| 175 | _deleteCommand.Dispose (); |
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| 176 | if (_updateCommand != null) |
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| 177 | _updateCommand.Dispose (); |
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| 178 | if (_schemaTable != null) |
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| 179 | _schemaTable.Dispose (); |
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| 180 | } |
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| 181 | _disposed = true; |
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| 182 | } |
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| 183 | } |
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| 184 | |||
| 185 | private void BuildCache (bool closeConnection) |
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| 186 | { |
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| 187 | SqliteCommand sourceCommand = SourceCommand; |
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| 188 | if (sourceCommand == null) |
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| 189 | throw new InvalidOperationException ("The DataAdapter.SelectCommand property needs to be initialized."); |
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| 190 | SqliteConnection connection = sourceCommand.Connection as SqliteConnection; |
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| 191 | if (connection == null) |
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| 192 | throw new InvalidOperationException ("The DataAdapter.SelectCommand.Connection property needs to be initialized."); |
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| 193 | |||
| 194 | if (_schemaTable == null) { |
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| 195 | if (connection.State == ConnectionState.Open) |
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| 196 | closeConnection = false; |
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| 197 | else |
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| 198 | connection.Open (); |
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| 199 | |||
| 200 | SqliteDataReader reader = sourceCommand.ExecuteReader (CommandBehavior.SchemaOnly | |
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| 201 | CommandBehavior.KeyInfo); |
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| 202 | _schemaTable = reader.GetSchemaTable (); |
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| 203 | reader.Close (); |
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| 204 | if (closeConnection) |
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| 205 | connection.Close (); |
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| 206 | BuildInformation (_schemaTable); |
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| 207 | } |
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| 208 | } |
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| 209 | |||
| 210 | private void BuildInformation (DataTable schemaTable) |
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| 211 | { |
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| 212 | _tableName = String.Empty; |
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| 213 | foreach (DataRow schemaRow in schemaTable.Rows) { |
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| 214 | if (schemaRow.IsNull ("BaseTableName") || |
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| 215 | (string) schemaRow ["BaseTableName"] == String.Empty) |
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| 216 | continue; |
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| 217 | |||
| 218 | if (_tableName == String.Empty) |
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| 219 | _tableName = (string) schemaRow ["BaseTableName"]; |
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| 220 | else if (_tableName != (string) schemaRow["BaseTableName"]) |
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| 221 | throw new InvalidOperationException ("Dynamic SQL generation is not supported against multiple base tables."); |
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| 222 | } |
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| 223 | if (_tableName == String.Empty) |
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| 224 | throw new InvalidOperationException ("Dynamic SQL generation is not supported with no base table."); |
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| 225 | _schemaTable = schemaTable; |
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| 226 | } |
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| 227 | |||
| 228 | private SqliteCommand CreateInsertCommand (bool option) |
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| 229 | { |
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| 230 | if (QuotedTableName == String.Empty) |
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| 231 | return null; |
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| 232 | |||
| 233 | CreateNewCommand (ref _insertCommand); |
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| 234 | |||
| 235 | string command = String.Format ("INSERT INTO {0}", QuotedTableName); |
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| 236 | string sql; |
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| 237 | StringBuilder columns = new StringBuilder (); |
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| 238 | StringBuilder values = new StringBuilder (); |
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| 239 | |||
| 240 | int parmIndex = 1; |
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| 241 | foreach (DataRow schemaRow in _schemaTable.Rows) { |
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| 242 | if (!IncludedInInsert (schemaRow)) |
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| 243 | continue; |
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| 244 | |||
| 245 | if (parmIndex > 1) { |
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| 246 | columns.Append (", "); |
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| 247 | values.Append (", "); |
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| 248 | } |
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| 249 | |||
| 250 | SqliteParameter parameter = null; |
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| 251 | if (option) { |
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| 252 | parameter = _insertCommand.Parameters.Add (CreateParameter (schemaRow)); |
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| 253 | } else { |
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| 254 | parameter = _insertCommand.Parameters.Add (CreateParameter (parmIndex++, schemaRow)); |
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| 255 | } |
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| 256 | parameter.SourceVersion = DataRowVersion.Current; |
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| 257 | columns.Append (GetQuotedString (parameter.SourceColumn)); |
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| 258 | values.Append (parameter.ParameterName); |
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| 259 | } |
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| 260 | |||
| 261 | sql = String.Format ("{0} ({1}) VALUES ({2})", command, columns.ToString (), values.ToString ()); |
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| 262 | _insertCommand.CommandText = sql; |
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| 263 | return _insertCommand; |
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| 264 | } |
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| 265 | |||
| 266 | private SqliteCommand CreateDeleteCommand (bool option) |
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| 267 | { |
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| 268 | // If no table was found, then we can't do an delete |
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| 269 | if (QuotedTableName == String.Empty) |
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| 270 | return null; |
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| 271 | |||
| 272 | CreateNewCommand (ref _deleteCommand); |
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| 273 | |||
| 274 | string command = String.Format ("DELETE FROM {0}", QuotedTableName); |
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| 275 | StringBuilder whereClause = new StringBuilder (); |
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| 276 | bool keyFound = false; |
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| 277 | int parmIndex = 1; |
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| 278 | |||
| 279 | foreach (DataRow schemaRow in _schemaTable.Rows) { |
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| 280 | if ((bool)schemaRow["IsExpression"] == true) |
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| 281 | continue; |
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| 282 | if (!IncludedInWhereClause (schemaRow)) |
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| 283 | continue; |
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| 284 | |||
| 285 | if (whereClause.Length > 0) |
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| 286 | whereClause.Append (" AND "); |
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| 287 | |||
| 288 | bool isKey = (bool) schemaRow ["IsKey"]; |
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| 289 | SqliteParameter parameter = null; |
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| 290 | |||
| 291 | if (isKey) |
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| 292 | keyFound = true; |
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| 293 | |||
| 294 | bool allowNull = (bool) schemaRow ["AllowDBNull"]; |
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| 295 | if (!isKey && allowNull) { |
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| 296 | if (option) { |
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| 297 | parameter = _deleteCommand.Parameters.Add ( |
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| 298 | String.Format ("@{0}", schemaRow ["BaseColumnName"]), DbType.Int32); |
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| 299 | } else { |
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| 300 | parameter = _deleteCommand.Parameters.Add ( |
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| 301 | String.Format ("@p{0}", parmIndex++), DbType.Int32); |
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| 302 | } |
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| 303 | String sourceColumnName = (string) schemaRow ["BaseColumnName"]; |
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| 304 | parameter.Value = 1; |
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| 305 | |||
| 306 | whereClause.Append ("("); |
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| 307 | whereClause.Append (String.Format (clause1, parameter.ParameterName, |
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| 308 | GetQuotedString (sourceColumnName))); |
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| 309 | whereClause.Append (" OR "); |
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| 310 | } |
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| 311 | |||
| 312 | if (option) { |
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| 313 | parameter = _deleteCommand.Parameters.Add (CreateParameter (schemaRow)); |
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| 314 | } else { |
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| 315 | parameter = _deleteCommand.Parameters.Add (CreateParameter (parmIndex++, schemaRow)); |
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| 316 | } |
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| 317 | parameter.SourceVersion = DataRowVersion.Original; |
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| 318 | |||
| 319 | whereClause.Append (String.Format (clause2, GetQuotedString (parameter.SourceColumn), |
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| 320 | parameter.ParameterName)); |
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| 321 | |||
| 322 | if (!isKey && allowNull) |
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| 323 | whereClause.Append (")"); |
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| 324 | } |
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| 325 | if (!keyFound) |
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| 326 | throw new InvalidOperationException ("Dynamic SQL generation for the DeleteCommand is not supported against a SelectCommand that does not return any key column information."); |
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| 327 | |||
| 328 | string sql = String.Format ("{0} WHERE ({1})", command, whereClause.ToString ()); |
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| 329 | _deleteCommand.CommandText = sql; |
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| 330 | return _deleteCommand; |
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| 331 | } |
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| 332 | |||
| 333 | private SqliteCommand CreateUpdateCommand (bool option) |
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| 334 | { |
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| 335 | if (QuotedTableName == String.Empty) |
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| 336 | return null; |
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| 337 | |||
| 338 | CreateNewCommand (ref _updateCommand); |
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| 339 | |||
| 340 | string command = String.Format ("UPDATE {0} SET ", QuotedTableName); |
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| 341 | StringBuilder columns = new StringBuilder (); |
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| 342 | StringBuilder whereClause = new StringBuilder (); |
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| 343 | int parmIndex = 1; |
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| 344 | bool keyFound = false; |
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| 345 | |||
| 346 | foreach (DataRow schemaRow in _schemaTable.Rows) { |
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| 347 | if (!IncludedInUpdate (schemaRow)) |
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| 348 | continue; |
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| 349 | if (columns.Length > 0) |
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| 350 | columns.Append (", "); |
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| 351 | |||
| 352 | SqliteParameter parameter = null; |
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| 353 | if (option) { |
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| 354 | parameter = _updateCommand.Parameters.Add (CreateParameter (schemaRow)); |
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| 355 | } else { |
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| 356 | parameter = _updateCommand.Parameters.Add (CreateParameter (parmIndex++, schemaRow)); |
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| 357 | } |
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| 358 | parameter.SourceVersion = DataRowVersion.Current; |
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| 359 | |||
| 360 | columns.Append (String.Format ("{0} = {1}", GetQuotedString (parameter.SourceColumn), |
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| 361 | parameter.ParameterName)); |
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| 362 | } |
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| 363 | |||
| 364 | foreach (DataRow schemaRow in _schemaTable.Rows) { |
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| 365 | if ((bool)schemaRow["IsExpression"] == true) |
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| 366 | continue; |
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| 367 | |||
| 368 | if (!IncludedInWhereClause (schemaRow)) |
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| 369 | continue; |
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| 370 | |||
| 371 | if (whereClause.Length > 0) |
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| 372 | whereClause.Append (" AND "); |
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| 373 | |||
| 374 | bool isKey = (bool) schemaRow ["IsKey"]; |
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| 375 | SqliteParameter parameter = null; |
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| 376 | |||
| 377 | if (isKey) |
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| 378 | keyFound = true; |
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| 379 | |||
| 380 | bool allowNull = (bool) schemaRow ["AllowDBNull"]; |
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| 381 | if (!isKey && allowNull) { |
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| 382 | if (option) { |
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| 383 | parameter = _updateCommand.Parameters.Add ( |
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| 384 | String.Format ("@{0}", schemaRow ["BaseColumnName"]), SqlDbType.Int); |
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| 385 | } else { |
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| 386 | parameter = _updateCommand.Parameters.Add ( |
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| 387 | String.Format ("@p{0}", parmIndex++), SqlDbType.Int); |
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| 388 | } |
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| 389 | parameter.Value = 1; |
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| 390 | whereClause.Append ("("); |
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| 391 | whereClause.Append (String.Format (clause1, parameter.ParameterName, |
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| 392 | GetQuotedString ((string) schemaRow ["BaseColumnName"]))); |
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| 393 | whereClause.Append (" OR "); |
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| 394 | } |
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| 395 | |||
| 396 | if (option) { |
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| 397 | parameter = _updateCommand.Parameters.Add (CreateParameter (schemaRow)); |
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| 398 | } else { |
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| 399 | parameter = _updateCommand.Parameters.Add (CreateParameter (parmIndex++, schemaRow)); |
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| 400 | } |
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| 401 | parameter.SourceVersion = DataRowVersion.Original; |
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| 402 | whereClause.Append (String.Format (clause2, GetQuotedString (parameter.SourceColumn), |
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| 403 | parameter.ParameterName)); |
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| 404 | |||
| 405 | if (!isKey && allowNull) |
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| 406 | whereClause.Append (")"); |
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| 407 | } |
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| 408 | if (!keyFound) |
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| 409 | throw new InvalidOperationException ("Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information."); |
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| 410 | |||
| 411 | string sql = String.Format ("{0}{1} WHERE ({2})", command, columns.ToString (), whereClause.ToString ()); |
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| 412 | _updateCommand.CommandText = sql; |
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| 413 | return _updateCommand; |
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| 414 | } |
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| 415 | |||
| 416 | private void CreateNewCommand (ref SqliteCommand command) |
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| 417 | { |
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| 418 | SqliteCommand sourceCommand = SourceCommand; |
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| 419 | if (command == null) { |
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| 420 | command = sourceCommand.Connection.CreateCommand () as SqliteCommand; |
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| 421 | command.CommandTimeout = sourceCommand.CommandTimeout; |
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| 422 | command.Transaction = sourceCommand.Transaction; |
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| 423 | } |
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| 424 | command.CommandType = CommandType.Text; |
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| 425 | command.UpdatedRowSource = UpdateRowSource.None; |
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| 426 | command.Parameters.Clear (); |
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| 427 | } |
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| 428 | |||
| 429 | private bool IncludedInWhereClause (DataRow schemaRow) |
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| 430 | { |
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| 431 | if ((bool) schemaRow ["IsLong"]) |
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| 432 | return false; |
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| 433 | return true; |
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| 434 | } |
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| 435 | |||
| 436 | private bool IncludedInInsert (DataRow schemaRow) |
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| 437 | { |
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| 438 | // not all of the below are supported by Sqlite, but we leave them here anyway, since some day Sqlite may |
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| 439 | // support some of them. |
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| 440 | if (!schemaRow.IsNull ("IsAutoIncrement") && (bool) schemaRow ["IsAutoIncrement"]) |
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| 441 | return false; |
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| 442 | if (!schemaRow.IsNull ("IsHidden") && (bool) schemaRow ["IsHidden"]) |
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| 443 | return false; |
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| 444 | if (!schemaRow.IsNull ("IsExpression") && (bool) schemaRow ["IsExpression"]) |
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| 445 | return false; |
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| 446 | if (!schemaRow.IsNull ("IsRowVersion") && (bool) schemaRow ["IsRowVersion"]) |
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| 447 | return false; |
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| 448 | if (!schemaRow.IsNull ("IsReadOnly") && (bool) schemaRow ["IsReadOnly"]) |
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| 449 | return false; |
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| 450 | return true; |
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| 451 | } |
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| 452 | |||
| 453 | private bool IncludedInUpdate (DataRow schemaRow) |
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| 454 | { |
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| 455 | // not all of the below are supported by Sqlite, but we leave them here anyway, since some day Sqlite may |
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| 456 | // support some of them. |
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| 457 | if (!schemaRow.IsNull ("IsAutoIncrement") && (bool) schemaRow ["IsAutoIncrement"]) |
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| 458 | return false; |
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| 459 | if (!schemaRow.IsNull ("IsHidden") && (bool) schemaRow ["IsHidden"]) |
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| 460 | return false; |
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| 461 | if (!schemaRow.IsNull ("IsRowVersion") && (bool) schemaRow ["IsRowVersion"]) |
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| 462 | return false; |
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| 463 | if (!schemaRow.IsNull ("IsExpression") && (bool) schemaRow ["IsExpression"]) |
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| 464 | return false; |
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| 465 | if (!schemaRow.IsNull ("IsReadOnly") && (bool) schemaRow ["IsReadOnly"]) |
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| 466 | return false; |
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| 467 | |||
| 468 | return true; |
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| 469 | } |
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| 470 | |||
| 471 | private SqliteParameter CreateParameter (DataRow schemaRow) |
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| 472 | { |
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| 473 | string sourceColumn = (string) schemaRow ["BaseColumnName"]; |
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| 474 | string name = String.Format ("@{0}", sourceColumn); |
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| 475 | DbType dbType = (DbType) schemaRow ["ProviderType"]; |
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| 476 | int size = (int) schemaRow ["ColumnSize"]; |
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| 477 | |||
| 478 | return new SqliteParameter (name, dbType, size, sourceColumn); |
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| 479 | } |
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| 480 | |||
| 481 | private SqliteParameter CreateParameter (int parmIndex, DataRow schemaRow) |
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| 482 | { |
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| 483 | string name = String.Format ("@p{0}", parmIndex); |
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| 484 | string sourceColumn = (string) schemaRow ["BaseColumnName"]; |
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| 485 | DbType dbType = (DbType) schemaRow ["ProviderType"]; |
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| 486 | int size = (int) schemaRow ["ColumnSize"]; |
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| 487 | |||
| 488 | return new SqliteParameter (name, dbType, size, sourceColumn); |
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| 489 | } |
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| 490 | |||
| 491 | private string GetQuotedString (string value) |
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| 492 | { |
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| 493 | if (value == String.Empty || value == null) |
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| 494 | return value; |
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| 495 | if (string.IsNullOrEmpty(_quotePrefix) && string.IsNullOrEmpty(_quoteSuffix)) |
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| 496 | return value; |
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| 497 | return String.Format ("{0}{1}{2}", _quotePrefix, value, _quoteSuffix); |
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| 498 | } |
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| 499 | |||
| 500 | private void RowUpdatingHandler (object sender, RowUpdatingEventArgs args) |
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| 501 | { |
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| 502 | if (args.Command != null) |
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| 503 | return; |
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| 504 | try { |
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| 505 | switch (args.StatementType) { |
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| 506 | case StatementType.Insert: |
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| 507 | args.Command = GetInsertCommand (); |
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| 508 | break; |
||
| 509 | case StatementType.Update: |
||
| 510 | args.Command = GetUpdateCommand (); |
||
| 511 | break; |
||
| 512 | case StatementType.Delete: |
||
| 513 | args.Command = GetDeleteCommand (); |
||
| 514 | break; |
||
| 515 | } |
||
| 516 | } catch (Exception e) { |
||
| 517 | args.Errors = e; |
||
| 518 | args.Status = UpdateStatus.ErrorsOccurred; |
||
| 519 | } |
||
| 520 | } |
||
| 521 | } |
||
| 522 | } |