override internal void LoadForView()
{
MySqlDatabase db = this.View.Database as MySqlDatabase;
MySqlDatabases dbs = db.Databases as MySqlDatabases;
if (dbs.Version.StartsWith("5"))
{
string query = @"SHOW COLUMNS FROM `" + this.View.Name + "`";
DataTable metaData = new DataTable();
DbDataAdapter adapter = MySqlDatabases.CreateAdapter(query, this.dbRoot.ConnectionString);
adapter.Fill(metaData);
metaData.Columns["Field"].ColumnName = "COLUMN_NAME";
metaData.Columns["Type"].ColumnName = "DATA_TYPE";
metaData.Columns["Null"].ColumnName = "IS_NULLABLE";
metaData.Columns["Default"].ColumnName = "COLUMN_DEFAULT";
if (metaData.Columns.Contains("IS_AUTO_KEY"))
{
f_IsAutoKey = metaData.Columns["IS_AUTO_KEY"];
}
PopulateArray(metaData);
}
}
override internal void LoadAll()
{
try
{
MySqlDatabases db = this.Database.Databases as MySqlDatabases;
string query = "SHOW TABLES";
if (db.Version.StartsWith("5"))
{
query = @"SHOW FULL TABLES WHERE Table_type = 'BASE TABLE'";
}
DataTable metaData = new DataTable();
DbDataAdapter adapter = MySqlDatabases.CreateAdapter(query, this.dbRoot.ConnectionString);
adapter.Fill(metaData);
metaData.Columns[0].ColumnName = "TABLE_NAME";
PopulateArray(metaData);
if (db.Version.StartsWith("5"))
{
LoadTableDescriptions();
}
}
catch { }
}
override internal void LoadAll()
{
try
{
string query = @"SHOW INDEX FROM `" + this.Table.Name + "`";
DataTable metaData = new DataTable();
DbDataAdapter adapter = MySqlDatabases.CreateAdapter(query, this.dbRoot.ConnectionString);
adapter.Fill(metaData);
metaData.Columns["Key_name"].ColumnName = "INDEX_NAME";
metaData.Columns["Index_type"].ColumnName = "TYPE";
metaData.Columns["Non_unique"].ColumnName = "UNIQUE";
PopulateArray(metaData);
}
catch {}
}
private void LoadTableColumnDescriptions()
{
try
{
string query = @"SELECT TABLE_NAME, COLUMN_NAME, COLUMN_COMMENT FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = '" +
this.Table.Database.Name + "' AND TABLE_NAME ='" + this.Table.Name + "'";
DataTable metaData = new DataTable();
DbDataAdapter adapter = MySqlDatabases.CreateAdapter(query, this.dbRoot.ConnectionString);
adapter.Fill(metaData);
if (metaData.Rows.Count > 0)
{
foreach (DataRow row in metaData.Rows)
{
Column c = this[row["COLUMN_NAME"] as string] as Column;
if (!c._row.Table.Columns.Contains("DESCRIPTION"))
{
c._row.Table.Columns.Add("DESCRIPTION", Type.GetType("System.String"));
this.f_Description = c._row.Table.Columns["DESCRIPTION"];
}
c._row["DESCRIPTION"] = row["COLUMN_COMMENT"] as string;
// We now set the AutoKey flag here ...
string extra = (string)c._row["Extra"];
if (extra != null && extra.Length > 0)
{
if (-1 != extra.IndexOf("auto_increment"))
{
c._row["IS_AUTO_KEY"] = true;
}
}
}
}
}
catch {}
}
override internal void LoadForTable()
{
string query = @"SHOW COLUMNS FROM `" + this.Table.Name + "`";
DataTable metaData = new DataTable();
DbDataAdapter adapter = MySqlDatabases.CreateAdapter(query, this.dbRoot.ConnectionString);
adapter.Fill(metaData);
metaData.Columns["Field"].ColumnName = "COLUMN_NAME";
metaData.Columns["Type"].ColumnName = "DATA_TYPE";
metaData.Columns["Null"].ColumnName = "IS_NULLABLE";
metaData.Columns["Default"].ColumnName = "COLUMN_DEFAULT";
if (metaData.Columns.Contains("Extra"))
{
if (!metaData.Columns.Contains("IS_AUTO_KEY"))
{
f_IsAutoKey = metaData.Columns.Add("IS_AUTO_KEY", typeof(bool));
}
foreach (DataRow row in metaData.Rows)
{
string extra = (string)row["extra"];
if (extra != null && extra.Contains("autoincrement"))
{
row["IS_AUTO_KEY"] = true;
}
else
{
row["IS_AUTO_KEY"] = false;
}
}
}
PopulateArray(metaData);
LoadTableColumnDescriptions();
}
internal override void LoadAll()
{
try
{
string name = "";
// test
// test
// We add our one and only Database
IDbConnection conn = MySqlDatabases.CreateConnection(this.dbRoot.ConnectionString);
conn.Open();
name = conn.Database;
conn.Close();
conn.Dispose();
MySqlDatabase database = (MySqlDatabase)this.dbRoot.ClassFactory.CreateDatabase();
database._name = name;
database.dbRoot = this.dbRoot;
database.Databases = this;
this._array.Add(database);
try
{
DataTable metaData = new DataTable();
DbDataAdapter adapter = MySqlDatabases.CreateAdapter("SELECT VERSION()", this.dbRoot.ConnectionString);
adapter.Fill(metaData);
this.Version = metaData.Rows[0][0] as string;
}
catch {}
}
catch {}
}
public MySqlDatabases()
{
MySqlDatabases.LoadAssembly();
}
public System.Data.IDbConnection CreateConnection()
{
return(MySqlDatabases.CreateConnection(""));
}
internal void AddMyHalf()
{
string query = @"SHOW CREATE TABLE `" + this.Table.Name + "`";
DataTable dt = new DataTable();
DbDataAdapter adapter = MySqlDatabases.CreateAdapter(query, this.dbRoot.ConnectionString);
adapter.Fill(dt);
string text = dt.Rows[0][1] as string;
// CONSTRAINT `FK_mastertypes_3` FOREIGN KEY (`TheINT1`, `TheINT2`) REFERENCES `employee` (`TheInt1`, `TheInt2`),
// CONSTRAINT `FK_mastertypes_1` FOREIGN KEY (`MyPK`) REFERENCES `employee` (`EmployeeID`),
// CONSTRAINT `FK_mastertypes_2` FOREIGN KEY (`TheVARCHAR`) REFERENCES `employee` (`LastName`)
// CONSTRAINT `ShippersOrders` FOREIGN KEY (`ShipVia`) REFERENCES `shippers` (`ShipperID`) ON DELETE NO ACTION ON UPDATE NO ACTION\n)
DataTable metaData = new DataTable();
metaData.Columns.Add("PK_TABLE_CATALOG");
metaData.Columns.Add("PK_TABLE_SCHEMA");
metaData.Columns.Add("PK_TABLE_NAME");
metaData.Columns.Add("FK_TABLE_CATALOG");
metaData.Columns.Add("FK_TABLE_SCHEMA");
metaData.Columns.Add("FK_TABLE_NAME");
metaData.Columns.Add("ORDINAL");
metaData.Columns.Add("UPDATE_RULE");
metaData.Columns.Add("DELETE_RULE");
metaData.Columns.Add("PK_NAME");
metaData.Columns.Add("FK_NAME");
metaData.Columns.Add("DEFERRABILITY");
metaData.Columns.Add("PK_COLUMN_NAME");
metaData.Columns.Add("FK_COLUMN_NAME");
string s = "";
string[] fkRec = null;
string[] pkColumns = null;
string[] fkColumns = null;
int iStart = 0;
while (true)
{
iStart = text.IndexOf("CONSTRAINT", iStart);
if (iStart == -1)
{
break;
}
int iEnd = text.IndexOf('\n', iStart);
string fk = text.Substring(iStart, iEnd - iStart);
iStart = iEnd + 2;
if (-1 != fk.IndexOf("FOREIGN KEY"))
{
// MySQL 5.0 trick !!
int index = fk.IndexOf(")");
index = fk.IndexOf(")", index + 1);
s = fk.Substring(0, index);
//
// Munge it down it a record I can split with a ',' seperator
s = s.Replace("`", "");
s = s.Replace(" ", "");
s = s.Replace("),", "");
s = s.Replace(",", "|");
s = s.Replace("CONSTRAINT", "");
s = s.Replace("FOREIGNKEY", "");
s = s.Replace("REFERENCES", ",");
s = s.Replace("(", ",");
s = s.Replace(")", "");
fkRec = s.Split(',');
fkColumns = fkRec[1].Split('|');
pkColumns = fkRec[3].Split('|');
for (int i = 0; i < pkColumns.Length; i++)
{
DataRow row = metaData.NewRow();
metaData.Rows.Add(row);
row["PK_TABLE_CATALOG"] = this.Table.Database.Name;
row["FK_TABLE_CATALOG"] = this.Table.Database.Name;
row["PK_TABLE_NAME"] = fkRec[2];
row["FK_TABLE_NAME"] = this.Table.Name;
row["FK_NAME"] = fkRec[0];
row["PK_COLUMN_NAME"] = pkColumns[i];
row["FK_COLUMN_NAME"] = fkColumns[i];
row["ORDINAL"] = i;
// ON DELETE NO ACTION ON UPDATE NO ACTION\n)
try
{
row["DELETE_RULE"] = "RESTRICT";
int ond = fk.IndexOf("ON DELETE");
if (-1 != ond)
{
char c = fk[ond + 10];
switch (c)
{
case 'R':
case 'r':
row["DELETE_RULE"] = "RESTRICT";
break;
case 'C':
case 'c':
row["DELETE_RULE"] = "CASCADE";
break;
case 'S':
case 's':
row["DELETE_RULE"] = "SET NULL";
break;
case 'N':
case 'n':
row["DELETE_RULE"] = "NO ACTION";
break;
}
}
row["UPDATE_RULE"] = "RESTRICT";
int onu = fk.IndexOf("ON UPDATE");
if (-1 != onu)
{
char c = fk[onu + 10];
switch (c)
{
case 'R':
case 'r':
row["UPDATE_RULE"] = "RESTRICT";
break;
case 'C':
case 'c':
row["UPDATE_RULE"] = "CASCADE";
break;
case 'S':
case 's':
row["UPDATE_RULE"] = "SET NULL";
break;
case 'N':
case 'n':
row["UPDATE_RULE"] = "NO ACTION";
break;
}
}
}
catch {}
}
}
}
PopulateArray(metaData);
}
private void LoadTableDescriptions()
{
try
{
//string query = @"SELECT TABLE_NAME, TABLE_COMMENT, CREATE_TIME, UPDATE_TIME FROM information_schema.TABLES WHERE TABLE_SCHEMA = '" + this.Database.Name + "'";
string query = @"SELECT TABLE_NAME, TABLE_COMMENT, CREATE_TIME, UPDATE_TIME FROM information_schema.TABLES WHERE TABLE_SCHEMA = '" + this.Database.Name + "' AND Table_type = 'BASE TABLE'";
DataTable metaData = new DataTable();
DbDataAdapter adapter = MySqlDatabases.CreateAdapter(query, this.dbRoot.ConnectionString);
adapter.Fill(metaData);
if (this.Database.Tables.Count > 0)
{
Table t = this.Database.Tables[0] as Table;
if (!t._row.Table.Columns.Contains("DESCRIPTION"))
{
t._row.Table.Columns.Add("DESCRIPTION", Type.GetType("System.String"));
this.f_Description = t._row.Table.Columns["DESCRIPTION"];
}
if (!t._row.Table.Columns.Contains("TABLE_SCHEMA"))
{
t._row.Table.Columns.Add("TABLE_SCHEMA", Type.GetType("System.String"));
this.f_Schema = t._row.Table.Columns["TABLE_SCHEMA"];
}
if (!t._row.Table.Columns.Contains("DATE_CREATED"))
{
t._row.Table.Columns.Add("DATE_CREATED", Type.GetType("System.DateTime"));
this.f_DateCreated = t._row.Table.Columns["DATE_CREATED"];
}
if (!t._row.Table.Columns.Contains("DATE_MODIFIED"))
{
t._row.Table.Columns.Add("DATE_MODIFIED", Type.GetType("System.DateTime"));
this.f_DateModified = t._row.Table.Columns["DATE_MODIFIED"];
}
}
if (metaData.Rows.Count > 0)
{
foreach (DataRow row in metaData.Rows)
{
Table t = this[row["TABLE_NAME"] as string] as Table;
t._row["DESCRIPTION"] = row["TABLE_COMMENT"] as string;
//t._row["TABLE_SCHEMA"] = this.Database.Name;
if (row["CREATE_TIME"] != DBNull.Value)
{
t._row["DATE_CREATED"] = (DateTime)row["CREATE_TIME"];
}
if (row["UPDATE_TIME"] != DBNull.Value)
{
t._row["DATE_MODIFIED"] = (DateTime)row["UPDATE_TIME"];
}
}
}
}
catch {}
}
