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// Copyright 2008, 2010, Oracle and/or its affiliates. All rights reserved.
//
// MySQL Connector/NET is licensed under the terms of the GPLv2
// <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
// MySQL Connectors. There are special exceptions to the terms and
// conditions of the GPLv2 as it is applied to this software, see the
// FLOSS License Exception
// <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
//
// This program 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; version 2 of the License.
//
// This program 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 this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.VisualStudio.Data;
using MySql.Data.VisualStudio.Editors;
using System.Data;
using System.Windows.Forms;
using Microsoft.VisualStudio.Shell.Interop;
using Microsoft.VisualStudio.TextManager.Interop;
using Microsoft.VisualStudio;
using IOleServiceProvider = Microsoft.VisualStudio.OLE.Interop.IServiceProvider;
namespace MySql.Data.VisualStudio
{
class ViewNode : DocumentNode, IVsTextBufferProvider
{
private VSCodeEditor editor = null;
public ViewNode(DataViewHierarchyAccessor hierarchyAccessor, int id) :
base(hierarchyAccessor, id)
{
NodeId = "View";
editor = new VSCodeEditor((IOleServiceProvider)hierarchyAccessor.ServiceProvider);
}
public static void CreateNew(DataViewHierarchyAccessor HierarchyAccessor)
{
ViewNode node = new ViewNode(HierarchyAccessor, 0);
node.Edit();
}
#region Properties
public override string SchemaCollection
{
get { return "views"; }
}
public override bool Dirty
{
get { return editor.Dirty; }
protected set { editor.Dirty = value; }
}
#endregion
public override object GetEditor()
{
return editor;
}
private string GetNewViewText()
{
StringBuilder sb = new StringBuilder("CREATE VIEW ");
sb.AppendFormat("{0}\r\n", Name);
sb.Append("/*\r\n(column1, column2)\r\n*/\r\n");
sb.Append("AS /* select statement */\r\n");
return sb.ToString();
}
protected override string GetCurrentName()
{
string sql = editor.Text.Trim();
string lowerSql = sql.ToLowerInvariant();
int pos = lowerSql.IndexOf("view") + 4;
int end = pos;
while (++end < sql.Length)
{
if (lowerSql[end] == '(') break;
if (Char.IsWhiteSpace(lowerSql[end])) break;
}
string procName = sql.Substring(pos, end - pos).Trim();
return procName.Trim('`');
}
protected override void Load()
{
if (IsNew)
editor.Text = GetNewViewText();
else
{
try
{
string[] restrictions = new string[3];
restrictions[1] = Database;
restrictions[2] = Name;
DataTable views = this.GetSchema("Views", restrictions);
if (views.Rows.Count != 1)
throw new Exception(String.Format("There is no view with the name '{0}'", Name));
editor.Text = String.Format("ALTER VIEW `{0}` AS \r\n{1}",
Name, views.Rows[0]["VIEW_DEFINITION"].ToString());
Dirty = false;
}
catch (Exception ex)
{
MessageBox.Show("Unable to load view with error: " + ex.Message);
}
}
}
public override string GetSaveSql()
{
return editor.Text;
}
#region IVsTextBufferProvider Members
private IVsTextLines buffer;
int IVsTextBufferProvider.GetTextBuffer(out IVsTextLines ppTextBuffer)
{
if (buffer == null)
{
Type bufferType = typeof(IVsTextLines);
Guid riid = bufferType.GUID;
Guid clsid = typeof(VsTextBufferClass).GUID;
buffer = (IVsTextLines)MySqlDataProviderPackage.Instance.CreateInstance(
ref clsid, ref riid, typeof(object));
}
ppTextBuffer = buffer;
return VSConstants.S_OK;
}
int IVsTextBufferProvider.LockTextBuffer(int fLock)
{
return VSConstants.S_OK;
}
int IVsTextBufferProvider.SetTextBuffer(IVsTextLines pTextBuffer)
{
return VSConstants.S_OK;
}
#endregion
}
}
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