public static bool IsGeneratorExist(this DBSchema schema, string gname)
{
if (schema == null)
{
throw new ArgumentNullException("schema");
}
if (gname == null)
{
throw new ArgumentNullException("gname");
}
return(schema.Generators.Any(gen => gname == gen.Name));
}
public static TableSchema GetTable(this DBSchema schema, string tableName)
{
if (schema == null)
{
throw new ArgumentNullException("schema");
}
if (tableName == null)
{
throw new ArgumentNullException("tableName");
}
return(schema.Tables.FirstOrDefault(table => tableName == table.Name));
}
public static bool IsTableExist(this DBSchema schema, string tableName)
{
if (schema == null)
{
throw new ArgumentNullException("schema");
}
if (tableName == null)
{
throw new ArgumentNullException("tableName");
}
return(schema.Tables.Any(table => tableName == table.Name));
}
/// <summary>
/// Сравнение схемы с эталонной и выдача во внутреннюю хеш таблицу DDL комманд,
/// выполнение общих для всех движков действий.
/// </summary>
public void CompareDbsc(DBSchema mbDbsc, string targetConnStr)
{
// TODO : эту кашу надо откомментировать и отрефакторить по человечески.
var existingSchema = LoadExistingSchema(targetConnStr);
var targetSchema = DbscCopyPrepare(mbDbsc);
existingSchema.Normalize();
targetSchema.Normalize();
_ddlCmdTable.Rows.Clear();
#region Tables
var i = 1;
foreach (var eTable in existingSchema.Tables)
if (!targetSchema.IsTableExist(eTable.Name))
{
HelperTableDrop(eTable, existingSchema.Tables, i);
i++;
}
i = 1;
foreach (var mTable in targetSchema.Tables)
{
var eTable = existingSchema.GetTable(mTable.Name);
if (eTable == null)
HelperTableCreate(mTable, i);
else if (mTable.GetDiffColumnsCount(eTable) == eTable.Columns.Length)
{
HelperTableDrop(eTable, existingSchema.Tables, i);
HelperTableCreate(mTable, i);
}
else
{
#region Column scan
foreach (var eColumn in eTable.Columns)
if (!mTable.IsColumnExist(eColumn.Name))
AddDdlCommand(i,
eTable.Name + @"." + eColumn.Name,
"Column",
MakeDdlColumnDrop(eColumn, eTable));
foreach (var mColumn in mTable.Columns)
{
var eColumn = eTable.GetColumn(mColumn.Name);
if (eColumn == null)
AddDdlCommand(i,
mTable.Name + @"." + mColumn.Name,
"Column",
MakeDdlColumnCreate(mColumn, mTable));
// to post processing in all workers AlterColumn
}
#endregion
#region Indexes scan
foreach (var eIndex in eTable.Indexes)
if (!mTable.IsIndexExist(eIndex.Name))
{
AddDdlCommand(i,
eTable.Name + @"." + eIndex.Name,
"Index",
MakeDdlIndexDrop(eIndex, eTable));
if (CheckIndexTypeForRecreate(eIndex))
foreach (var eTable1 in existingSchema.Tables)
{
var eKey1 = eTable1.GetKey(ConstraintType.KeyForeign, eTable.Name,
ParseColumnListIndexClear(eIndex.Columns));
if (eKey1 != null)
{
AddDdlCommand(i,
eTable.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyDrop(eKey1, eTable1));
AddDdlCommand(i,
eTable.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyCreateByAlter(eKey1, eTable1));
}
}
}
foreach (var mIndex in mTable.Indexes)
if (eTable.IsIndexExist(mIndex.Name))
{
var eIndex = eTable.GetIndex(mIndex.Name);
if (!eIndex.Equals(mIndex))
{
AddDdlCommand(i,
eTable.Name + @"." + eIndex.Name,
"Index",
MakeDdlIndexDrop(eIndex, eTable));
AddDdlCommand(i,
eTable.Name + @"." + mIndex,
"Index",
MakeDdlIndexCreate(mIndex, mTable));
if (CheckIndexTypeForRecreate(eIndex))
foreach (var eTable1 in existingSchema.Tables)
{
var eKey1 = eTable1.GetKey(ConstraintType.KeyForeign, eTable.Name,
ParseColumnListIndexClear(eIndex.Columns));
if (eKey1 != null)
{
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyDrop(eKey1, eTable1));
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyCreateByAlter(eKey1, eTable1));
}
}
}
}
else
AddDdlCommand(i,
mTable.Name + @"." + mIndex.Name,
"Index",
MakeDdlIndexCreate(mIndex, mTable));
#endregion
#region Keys scan
foreach (var eKey in eTable.Keys)
{
if (eKey.KeyType == ConstraintType.Default)
continue;
if (!mTable.IsKeyExist(eKey.Name))
{
AddDdlCommand(i,
eTable.Name + @"." + eKey.Name,
eKey.KeyType.ToString(),
MakeDdlKeyDrop(eKey, eTable));
if (CheckKeyTypeForRecreate(eKey))
foreach (var eTable1 in existingSchema.Tables)
{
var eKey1 = eTable1.GetKey(ConstraintType.KeyForeign, eTable.Name, eKey.Columns);
if (eKey1 != null)
{
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyDrop(eKey1, eTable1));
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyCreateByAlter(eKey1, eTable1));
}
}
}
}
foreach (var mKey in mTable.Keys)
{
if (mKey.KeyType == ConstraintType.Default)
continue;
if (eTable.IsKeyExist(mKey.Name))
{
var eKey = eTable.GetKey(mKey.Name);
if (!eKey.Equals(mKey))
{
AddDdlCommand(i,
eTable.Name + @"." + mKey.Name,
mKey.KeyType.ToString(),
MakeDdlKeyDrop(eKey, eTable));
AddDdlCommand(i,
eTable.Name + @"." + mKey.Name,
mKey.KeyType.ToString(),
MakeDdlKeyCreateByAlter(mKey, eTable));
if (CheckKeyTypeForRecreate(eKey))
foreach (var eTable1 in existingSchema.Tables)
{
var eKey1 = eTable1.GetKey(ConstraintType.KeyForeign, eTable.Name, eKey.Columns);
if (eKey1 != null)
{
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyDrop(eKey1, eTable1));
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyCreateByAlter(eKey1, eTable1));
}
}
}
}
else
AddDdlCommand(i,
eTable.Name + @"." + mKey.Name,
mKey.KeyType.ToString(),
MakeDdlKeyCreateByAlter(mKey, eTable));
}
#endregion
}
i++;
}
#endregion
AfterSchemaComparision(existingSchema, targetSchema);
_ddlCommands = Reparse();
_ddlCmdTable.Rows.Clear();
}
/// <summary>
/// Препроцесинг схем, детали для разных движков
/// </summary>
/// <param name="existingSchema">Существующая схема</param>
/// <param name="targetSchema">Эталоная схема</param>
protected virtual void AfterSchemaComparision(DBSchema existingSchema, DBSchema targetSchema)
{}
/// <summary> /// Так как схема - референс тип, создание его глубокой копии. /// Которая при приведение к искомому движку бедет правиться. /// И приведение её к исходному движку /// </summary> /// <param name="schema">Эталоная схема</param> /// <returns></returns> protected abstract DBSchema DbscCopyPrepare(DBSchema schema);
/// <summary>
/// Сравнение схемы с эталонной и выдача во внутреннюю хеш таблицу DDL комманд,
/// выполнение общих для всех движков действий.
/// </summary>
public void CompareDbsc(DBSchema mbDbsc, string targetConnStr)
{
// TODO : эту кашу надо откомментировать и отрефакторить по человечески.
var existingSchema = LoadExistingSchema(targetConnStr);
var targetSchema = DbscCopyPrepare(mbDbsc);
existingSchema.Normalize();
targetSchema.Normalize();
_ddlCmdTable.Rows.Clear();
#region Tables
var i = 1;
foreach (var eTable in existingSchema.Tables)
{
if (!targetSchema.IsTableExist(eTable.Name))
{
HelperTableDrop(eTable, existingSchema.Tables, i);
i++;
}
}
i = 1;
foreach (var mTable in targetSchema.Tables)
{
var eTable = existingSchema.GetTable(mTable.Name);
if (eTable == null)
{
HelperTableCreate(mTable, i);
}
else if (mTable.GetDiffColumnsCount(eTable) == eTable.Columns.Length)
{
HelperTableDrop(eTable, existingSchema.Tables, i);
HelperTableCreate(mTable, i);
}
else
{
#region Column scan
foreach (var eColumn in eTable.Columns)
{
if (!mTable.IsColumnExist(eColumn.Name))
{
AddDdlCommand(i,
eTable.Name + @"." + eColumn.Name,
"Column",
MakeDdlColumnDrop(eColumn, eTable));
}
}
foreach (var mColumn in mTable.Columns)
{
var eColumn = eTable.GetColumn(mColumn.Name);
if (eColumn == null)
{
AddDdlCommand(i,
mTable.Name + @"." + mColumn.Name,
"Column",
MakeDdlColumnCreate(mColumn, mTable));
}
// to post processing in all workers AlterColumn
}
#endregion
#region Indexes scan
foreach (var eIndex in eTable.Indexes)
{
if (!mTable.IsIndexExist(eIndex.Name))
{
AddDdlCommand(i,
eTable.Name + @"." + eIndex.Name,
"Index",
MakeDdlIndexDrop(eIndex, eTable));
if (CheckIndexTypeForRecreate(eIndex))
{
foreach (var eTable1 in existingSchema.Tables)
{
var eKey1 = eTable1.GetKey(ConstraintType.KeyForeign, eTable.Name,
ParseColumnListIndexClear(eIndex.Columns));
if (eKey1 != null)
{
AddDdlCommand(i,
eTable.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyDrop(eKey1, eTable1));
AddDdlCommand(i,
eTable.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyCreateByAlter(eKey1, eTable1));
}
}
}
}
}
foreach (var mIndex in mTable.Indexes)
{
if (eTable.IsIndexExist(mIndex.Name))
{
var eIndex = eTable.GetIndex(mIndex.Name);
if (!eIndex.Equals(mIndex))
{
AddDdlCommand(i,
eTable.Name + @"." + eIndex.Name,
"Index",
MakeDdlIndexDrop(eIndex, eTable));
AddDdlCommand(i,
eTable.Name + @"." + mIndex,
"Index",
MakeDdlIndexCreate(mIndex, mTable));
if (CheckIndexTypeForRecreate(eIndex))
{
foreach (var eTable1 in existingSchema.Tables)
{
var eKey1 = eTable1.GetKey(ConstraintType.KeyForeign, eTable.Name,
ParseColumnListIndexClear(eIndex.Columns));
if (eKey1 != null)
{
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyDrop(eKey1, eTable1));
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyCreateByAlter(eKey1, eTable1));
}
}
}
}
}
else
{
AddDdlCommand(i,
mTable.Name + @"." + mIndex.Name,
"Index",
MakeDdlIndexCreate(mIndex, mTable));
}
}
#endregion
#region Keys scan
foreach (var eKey in eTable.Keys)
{
if (eKey.KeyType == ConstraintType.Default)
{
continue;
}
if (!mTable.IsKeyExist(eKey.Name))
{
AddDdlCommand(i,
eTable.Name + @"." + eKey.Name,
eKey.KeyType.ToString(),
MakeDdlKeyDrop(eKey, eTable));
if (CheckKeyTypeForRecreate(eKey))
{
foreach (var eTable1 in existingSchema.Tables)
{
var eKey1 = eTable1.GetKey(ConstraintType.KeyForeign, eTable.Name, eKey.Columns);
if (eKey1 != null)
{
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyDrop(eKey1, eTable1));
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyCreateByAlter(eKey1, eTable1));
}
}
}
}
}
foreach (var mKey in mTable.Keys)
{
if (mKey.KeyType == ConstraintType.Default)
{
continue;
}
if (eTable.IsKeyExist(mKey.Name))
{
var eKey = eTable.GetKey(mKey.Name);
if (!eKey.Equals(mKey))
{
AddDdlCommand(i,
eTable.Name + @"." + mKey.Name,
mKey.KeyType.ToString(),
MakeDdlKeyDrop(eKey, eTable));
AddDdlCommand(i,
eTable.Name + @"." + mKey.Name,
mKey.KeyType.ToString(),
MakeDdlKeyCreateByAlter(mKey, eTable));
if (CheckKeyTypeForRecreate(eKey))
{
foreach (var eTable1 in existingSchema.Tables)
{
var eKey1 = eTable1.GetKey(ConstraintType.KeyForeign, eTable.Name, eKey.Columns);
if (eKey1 != null)
{
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyDrop(eKey1, eTable1));
AddDdlCommand(i,
eTable1.Name + @"." + eKey1.Name,
eKey1.KeyType.ToString(),
MakeDdlKeyCreateByAlter(eKey1, eTable1));
}
}
}
}
}
else
{
AddDdlCommand(i,
eTable.Name + @"." + mKey.Name,
mKey.KeyType.ToString(),
MakeDdlKeyCreateByAlter(mKey, eTable));
}
}
#endregion
}
i++;
}
#endregion
AfterSchemaComparision(existingSchema, targetSchema);
_ddlCommands = Reparse();
_ddlCmdTable.Rows.Clear();
}
/// <summary>
/// Препроцесинг схем, детали для разных движков
/// </summary>
/// <param name="existingSchema">Существующая схема</param>
/// <param name="targetSchema">Эталоная схема</param>
protected virtual void AfterSchemaComparision(DBSchema existingSchema, DBSchema targetSchema)
{
}
/// <summary> /// Так как схема - референс тип, создание его глубокой копии. /// Которая при приведение к искомому движку бедет правиться. /// И приведение её к исходному движку /// </summary> /// <param name="schema">Эталоная схема</param> /// <returns></returns> protected abstract DBSchema DbscCopyPrepare(DBSchema schema);
