[a235fd]: SQLite.Designer / Design / View.cs  Maximize  Restore  History

Download this file

269 lines (227 with data), 6.8 kB

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
/********************************************************
* ADO.NET 2.0 Data Provider for SQLite Version 3.X
* Written by Robert Simpson (robert@blackcastlesoft.com)
*
* Released to the public domain, use at your own risk!
********************************************************/
namespace SQLite.Designer.Design
{
using System;
using System.Data.Common;
using System.ComponentModel.Design;
using System.ComponentModel;
using System.Drawing.Design;
using System.Collections.Generic;
using System.Data;
using System.Text;
using System.Globalization;
using SQLite.Designer.Editors;
internal class View : ViewTableBase, ICustomTypeDescriptor
{
private string _name;
private string _oldname;
private string _sql;
private string _oldsql;
private ViewDesignerDoc _owner;
private string _catalog;
private DbConnection _connection;
List<ViewTrigger> _triggers = new List<ViewTrigger>();
List<ViewTrigger> _oldtriggers = new List<ViewTrigger>();
internal View(string viewName, DbConnection connection, ViewDesignerDoc parent)
{
_owner = parent;
_name = viewName;
_oldname = viewName;
_catalog = connection.Database;
_connection = connection;
_owner.Name = _name;
if (String.IsNullOrEmpty(viewName) == false)
{
using (DataTable tbl = connection.GetSchema("Views", new string[] { Catalog, null, Name }))
{
if (tbl.Rows.Count > 0)
{
_sql = tbl.Rows[0]["VIEW_DEFINITION"].ToString();
StringBuilder builder = new StringBuilder();
builder.Append(_sql);
builder.AppendLine(";");
_triggers.Clear();
_oldtriggers.Clear();
using (DataTable ttbl = _connection.GetSchema("Triggers", new string[] { Catalog, null, Name }))
{
foreach (DataRow row in ttbl.Rows)
{
ViewTrigger t = new ViewTrigger(this, row);
_triggers.Add(t);
_oldtriggers.Add(((ICloneable)t).Clone() as ViewTrigger);
builder.AppendFormat("{0};\r\n", t.OriginalSql);
}
}
_oldsql = builder.ToString();
}
else
{
_oldname = null;
}
}
}
}
public override void MakeDirty()
{
_owner.MakeDirty();
}
[Browsable(false)]
public override object Triggers
{
get { return _triggers; }
}
public void Committed()
{
_oldsql = _sql;
_oldname = _name;
_oldtriggers = _triggers;
_triggers.Clear();
foreach (ViewTrigger trig in _oldtriggers)
{
_triggers.Add(((ICloneable)trig).Clone() as ViewTrigger);
}
}
public override string ToString()
{
return String.Format(CultureInfo.InvariantCulture, "[{0}].[{1}]", Catalog, Name);
}
[Category("Storage")]
[RefreshProperties(RefreshProperties.All)]
[ParenthesizePropertyName(true)]
public override string Name
{
get { return _name; }
set
{
if (_name != value)
{
_name = value;
_owner.Name = value;
_owner.MakeDirty();
}
}
}
[Browsable(false)]
public override string OldName
{
get { return _oldname; }
}
[Category("Storage")]
[Editor(typeof(CatalogTypeEditor), typeof(UITypeEditor))]
[DefaultValue("main")]
[RefreshProperties(RefreshProperties.All)]
public override string Catalog
{
get { return _catalog; }
}
[Category("Storage")]
public string Database
{
get { return _connection.DataSource; }
}
[Browsable(false)]
public string SqlText
{
get { return _sql; }
set
{
if (String.Compare(_sql, value, StringComparison.OrdinalIgnoreCase) != 0)
{
_sql = value;
_owner.MakeDirty();
}
}
}
[Browsable(false)]
public string OriginalSql
{
get { return _oldsql; }
}
public string GetSqlText()
{
if (String.Compare(_sql, _oldsql, StringComparison.OrdinalIgnoreCase) == 0 && String.Compare(_name, _oldname, StringComparison.OrdinalIgnoreCase) == 0) return null;
StringBuilder builder = new StringBuilder();
if (String.IsNullOrEmpty(_oldname) == false)
{
foreach (ViewTrigger trig in _oldtriggers)
{
builder.AppendFormat("DROP TRIGGER [{0}].[{1}];\r\n", Catalog, trig.Name);
}
builder.AppendFormat("DROP VIEW [{0}].[{1}];\r\n", Catalog, _oldname);
}
builder.AppendFormat("CREATE VIEW [{0}].[{1}] AS {2};\r\n", Catalog, Name, SqlText);
string sep = "";
foreach (ViewTrigger trig in _triggers)
{
builder.Append(sep);
trig.WriteSql(builder);
sep = "\r\n";
}
return builder.ToString();
}
#region ICustomTypeDescriptor Members
AttributeCollection ICustomTypeDescriptor.GetAttributes()
{
return TypeDescriptor.GetAttributes(GetType());
}
string ICustomTypeDescriptor.GetClassName()
{
return "View Design";
}
string ICustomTypeDescriptor.GetComponentName()
{
return ToString();
}
TypeConverter ICustomTypeDescriptor.GetConverter()
{
return TypeDescriptor.GetConverter(GetType());
}
EventDescriptor ICustomTypeDescriptor.GetDefaultEvent()
{
return TypeDescriptor.GetDefaultEvent(GetType());
}
PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty()
{
return TypeDescriptor.GetDefaultProperty(GetType());
}
object ICustomTypeDescriptor.GetEditor(Type editorBaseType)
{
return TypeDescriptor.GetEditor(GetType(), editorBaseType);
}
EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attributes)
{
return TypeDescriptor.GetEvents(GetType(), attributes);
}
EventDescriptorCollection ICustomTypeDescriptor.GetEvents()
{
return TypeDescriptor.GetEvents(GetType());
}
PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
{
return TypeDescriptor.GetProperties(GetType(), attributes);
}
PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties()
{
return TypeDescriptor.GetProperties(GetType());
}
object ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd)
{
return this;
}
#endregion
[Browsable(false)]
public override ViewTableBase DesignTable
{
get { return this; }
}
public override DbConnection GetConnection()
{
return _connection;
}
}
}

Get latest updates about Open Source Projects, Conferences and News.

Sign up for the SourceForge newsletter:

JavaScript is required for this form.





No, thanks