protected override List <MigrationOperation> GetOperations()
{
List <MigrationOperation> operations = new List <MigrationOperation>();
#region operations
if (Indexes != null)
{
foreach (var index in Indexes)
{
var _DropIndexOperation = new DropIndexOperation();
_DropIndexOperation.Table = this.Table.Name.ToLower();
_DropIndexOperation.Name = EF_CreateTable_Action.GetIndexName(index.Keys.Split(','), this.Table.id.Value);
operations.Add(_DropIndexOperation);
}
}
var _DropTableOperation = new DropTableOperation()
{
Name = this.Table.Name.ToLower()
};
operations.Add(_DropTableOperation);
#endregion
return(operations);
}
protected override List <MigrationOperation> GetOperations()
{
List <MigrationOperation> operations = new List <MigrationOperation>();
if (this.DeletedIndexes != null)
{
foreach (var index in DeletedIndexes)
{
var _DropIndexOperation = new DropIndexOperation();
_DropIndexOperation.Table = this.OldTableName.ToLower();
_DropIndexOperation.Name = EF_CreateTable_Action.GetIndexName(index.Keys.Split(','), this.TableId);
operations.Add(_DropIndexOperation);
}
}
if (this.DeletedColumns != null)
{
foreach (var column in this.DeletedColumns)
{
var _DropColumnOperation = new DropColumnOperation()
{
Name = column.Name,
Table = this.OldTableName.ToLower(),
};
operations.Add(_DropColumnOperation);
}
}
if (this.ChangedColumns != null)
{
foreach (var column in this.ChangedColumns)
{
if (column.ChangedProperties["Name"] != null)
{
var _RenameColumnOperation = new RenameColumnOperation()
{
Name = column.ChangedProperties["Name"].OriginalValue.ToString().ToLower(),
NewName = column.Name.ToLower(),
Table = this.OldTableName.ToLower(),
};
operations.Add(_RenameColumnOperation);
}
if (column.ChangedProperties["IsAutoIncrement"] != null)
{
var original = (bool)column.ChangedProperties["IsAutoIncrement"].OriginalValue;
if (original)
{
var _DropSequenceOperation = new DropSequenceOperation()
{
Name = column.Name,
};
operations.Add(_DropSequenceOperation);
}
else
{
var _CreateSequenceOperation = new CreateSequenceOperation()
{
StartValue = 1,
Name = column.Name,
};
operations.Add(_CreateSequenceOperation);
}
}
if (column.ChangedProperties["IsPKID"] != null)
{
var original = (bool)column.ChangedProperties["IsPKID"].OriginalValue;
if (original)
{
var _DropPrimaryKeyOperation = new DropPrimaryKeyOperation()
{
Name = column.Name,
Table = this.OldTableName.ToLower(),
};
operations.Add(_DropPrimaryKeyOperation);
}
else
{
var _AddPrimaryKeyOperation = new AddPrimaryKeyOperation()
{
Columns = new string[] { column.Name },
Table = this.OldTableName.ToLower(),
};
operations.Add(_AddPrimaryKeyOperation);
}
}
if (column.ChangedProperties.Any(m => m.Key != "Name" && m.Key != "IsAutoIncrement" && m.Key != "IsPKID") == false)
{
continue;
}
var olddbtype = column.dbType;
if (column.ChangedProperties["dbType"] != null)
{
olddbtype = column.ChangedProperties["dbType"].OriginalValue.ToString();
}
var oldDefaultValue = column.defaultValue;
if (column.ChangedProperties["defaultValue"] != null)
{
oldDefaultValue = column.ChangedProperties["defaultValue"].OriginalValue.ToString();
}
string oldComputedColumnSql = null;
var oldlength = column.length;
if (column.ChangedProperties["length"] != null)
{
oldlength = column.ChangedProperties["length"].OriginalValue.ToString();
}
if (!string.IsNullOrEmpty(oldlength))
{
//借用ComputedColumnSql字段存放length
oldComputedColumnSql = oldlength;
}
var _AlterColumnOperation = new AlterColumnOperation()
{
Table = this.OldTableName.ToLower(),
ClrType = EF_CreateTable_Action.GetCSharpType(column.dbType),
ColumnType = column.dbType,
DefaultValue = column.defaultValue,
IsNullable = column.CanNull.GetValueOrDefault(),
Name = column.Name.ToLower(),
OldColumn = new ColumnOperation()
{
ClrType = EF_CreateTable_Action.GetCSharpType(olddbtype),
ColumnType = olddbtype,
DefaultValue = oldDefaultValue,
ComputedColumnSql = oldComputedColumnSql,
},
};
if (!string.IsNullOrEmpty(column.length))
{
//借用ComputedColumnSql字段存放length
_AlterColumnOperation.ComputedColumnSql = column.length;
}
operations.Add(_AlterColumnOperation);
}
}
if (this.NewTableName.ToLower() != this.OldTableName.ToLower())
{
var _RenameTableOperation = new RenameTableOperation()
{
Name = OldTableName.ToLower(),
NewName = NewTableName.ToLower(),
};
operations.Add(_RenameTableOperation);
}
if (this.NewColumns != null)
{
foreach (var column in this.NewColumns)
{
var _AddColumnOperation = new AddColumnOperation()
{
Table = this.NewTableName.ToLower(),
ClrType = EF_CreateTable_Action.GetCSharpType(column.dbType),
ColumnType = column.dbType,
DefaultValue = column.defaultValue,
IsUnicode = true,
IsNullable = column.CanNull.GetValueOrDefault(),
Name = column.Name.ToLower(),
};
if (!string.IsNullOrEmpty(column.length))
{
//借用ComputedColumnSql字段存放length
_AddColumnOperation.ComputedColumnSql = column.length;
}
operations.Add(_AddColumnOperation);
}
}
if (this.NewIndexes != null)
{
foreach (var indexCfg in this.NewIndexes)
{
var keynames = indexCfg.Keys.Split(',');
var _CreateIndexOperation = new CreateIndexOperation();
_CreateIndexOperation.Table = this.NewTableName.ToLower();
_CreateIndexOperation.Name = EF_CreateTable_Action.GetIndexName(keynames, this.TableId);
_CreateIndexOperation.Columns = keynames.Select(m => m.ToLower()).ToArray();
_CreateIndexOperation.IsUnique = indexCfg.IsUnique.GetValueOrDefault();
operations.Add(_CreateIndexOperation);
}
}
return(operations);
}
