public override void BuildSequenceAddSql(DbObjectChange change, DbSequenceInfo sequence)
{
var start = (sequence.StartValue < 1) ? 1 : sequence.StartValue;
const string sqlTemplate = "CREATE Sequence {0} START WITH {1} INCREMENT BY {2};";
change.AddScript(DbScriptType.SequenceAdd, sqlTemplate, sequence.FullName, start, sequence.Increment);
}
public override void BuildSequenceAddSql(DbObjectChange change, DbSequenceInfo sequence)
{
var start = (sequence.StartValue < 1) ? 1 : sequence.StartValue;
change.AddScript(DbScriptType.SequenceAdd,
$"CREATE Sequence {sequence.FullName} START WITH {start} INCREMENT BY {sequence.Increment};");
}
//ALTER TABLE employees DROP COLUMN [employee_pwd];
public virtual void BuildColumnDropSql(DbObjectChange change, DbColumnInfo column)
{
//Note: the column drop comes after table-rename, so it might be table is already renamed, and we have to get its new name
var tableName = column.Table.Peer.FullName; //new name if renamed
change.AddScript(DbScriptType.ColumnDrop, $"ALTER TABLE {tableName} DROP COLUMN {column.ColumnNameQuoted}");
}
public override void BuildTableConstraintDropSql(DbObjectChange change, DbKeyInfo key)
{
if (key.KeyType == Entities.Model.KeyType.PrimaryKey)
{
change.AddScript(DbScriptType.RefConstraintDrop, "ALTER TABLE {0} DROP PRIMARY KEY;", key.Table.FullName);
}
}
public override void BuildIndexAddSql(DbObjectChange change, DbKeyInfo key)
{
var driver = this.Settings.Driver;
var unique = key.KeyType.IsSet(KeyType.Unique) ? "UNIQUE" : string.Empty;
string clustered = GetClusteredExpression(key);
string indexFields;
if (driver.Supports(DbFeatures.OrderedColumnsInIndexes))
{
indexFields = key.KeyColumns.GetSqlNameListWithOrderSpec();
}
else
{
indexFields = key.KeyColumns.GetSqlNameList();
}
var qKeyName = QuoteName(key.Name);
string includeList = (key.IncludeColumns.Count == 0) ? string.Empty : "INCLUDE (" + key.IncludeColumns.GetSqlNameList() + ")";
string wherePred = (key.Filter == null) ? string.Empty: "WHERE " + key.Filter.DefaultSql;
var script = $@"
CREATE {unique} {clustered} INDEX {qKeyName}
ON {key.Table.FullName} ( {indexFields} )
{includeList}
{wherePred}
;";
var phase = key.KeyType.IsSet(KeyType.Clustered) ? ApplyPhase.Early : ApplyPhase.Default;
change.AddScript(DbScriptType.IndexAdd, phase, script);
}
public override void BuildColumnRenameSql(DbObjectChange change, DbColumnInfo oldColumn, DbColumnInfo newColumn)
{
var colSpec = GetColumnSpec(newColumn, DbScriptOptions.None);
var tn = newColumn.Table.FullName;
change.AddScript(DbScriptType.ColumnRename, $"ALTER TABLE {tn} CHANGE COLUMN {oldColumn.ColumnNameQuoted} {colSpec};");
}
public virtual void BuildColumnSetDefaultValuesSql(DbObjectChange change, DbColumnInfo column)
{
var fullTableRef = column.Table.FullName;
change.AddScript(DbScriptType.ColumnInit, "UPDATE {0} SET \"{1}\" = {2} WHERE \"{1}\" IS NULL;",
fullTableRef, column.ColumnName, column.TypeInfo.InitExpression);
}
public override void BuildTableAddSql(DbObjectChange change, DbTableInfo table)
{
const string SqlTemplate = @"CREATE TABLE {0} (" + "\r\n {1} \r\n); ";
var specs = table.Columns.Select(c => GetColumnSpec(c)).ToList();
//Until now it was the same as default impl method in base class. Now we need to add Primary key and Foreign key constraints
//Primary Key
var pk = table.PrimaryKey;
var col0 = pk.KeyColumns[0].Column;
//Identity Primary Key is taken care of in GetColumnSpec
// Note: looks like we need to declare identity PK in GetColumnSpec - SQLite is quite tricky in this way
if (!col0.Flags.IsSet(DbColumnFlags.Identity))
{
var strKeyCols = pk.KeyColumns.GetSqlNameList();
var pkSpec = string.Format("PRIMARY KEY({0})", strKeyCols);
specs.Add(pkSpec);
}
//Foreign keys (ref constraints
foreach (var refC in table.RefConstraints)
{
var strKeyCols = refC.FromKey.KeyColumns.GetSqlNameList();
//find target table
var strPkKeyCols = refC.ToKey.KeyColumns.GetSqlNameList();
var fkSpec = string.Format("FOREIGN KEY({0}) REFERENCES {1}({2})", strKeyCols, refC.ToKey.Table.TableName, strPkKeyCols);
if (refC.CascadeDelete)
{
fkSpec += " ON DELETE CASCADE";
}
specs.Add(fkSpec);
}
//Build final Table statement
var columnSpecs = string.Join("," + Environment.NewLine, specs);
change.AddScript(DbScriptType.TableAdd, SqlTemplate, table.FullName, columnSpecs);
}
public override void BuildViewDropSql(DbObjectChange change, DbTableInfo view)
{
var matzed = view.IsMaterializedView ? "MATERIALIZED" : string.Empty;
change.AddScript(DbScriptType.ViewDrop, "DROP {0} VIEW {1};", matzed, view.FullName);
//base.BuildViewDropSql(change, view);
}
public override void BuildIndexAddSql(DbObjectChange change, DbKeyInfo key)
{
const string CreateIndexTemplate = @"
CREATE {0} {1} INDEX {2}
ON {3} ( {4} )
{5}
{6}
";
var unique = key.KeyType.IsSet(KeyType.Unique) ? "UNIQUE" : string.Empty;
string clustered = GetClusteredExpression(key);
var indexFields = key.KeyColumns.GetSqlNameListWithOrderSpec();
var qKeyName = '"' + key.Name + '"';
string includeList = string.Empty;
if (key.IncludeColumns.Count > 0)
{
includeList = "INCLUDE (" + key.IncludeColumns.GetSqlNameList() + ")";
}
string wherePred = string.Empty;
if (!string.IsNullOrWhiteSpace(key.Filter))
{
wherePred = "WHERE " + key.Filter;
}
var phase = key.KeyType.IsSet(KeyType.Clustered) ? ApplyPhase.Early : ApplyPhase.Default;
change.AddScript(DbScriptType.IndexAdd, phase, CreateIndexTemplate,
unique, clustered, qKeyName, key.Table.FullName, indexFields, includeList, wherePred);
}
public override void BuildRefConstraintDropSql(DbObjectChange change, DbRefConstraintInfo dbRefConstraint)
{
var fromKey = dbRefConstraint.FromKey;
var kn = QuoteName(fromKey.Name);
change.AddScript(DbScriptType.RefConstraintDrop, $"ALTER TABLE {fromKey.Table.FullName} DROP FOREIGN KEY {kn};");
}
public override void BuildColumnSetDefaultValuesSql(DbObjectChange change, DbColumnInfo column)
{
const string sqlUpdateValues = "UPDATE {0} SET \"{1}\" = {2} WHERE \"{1}\" IS NULL;";
var fullTableRef = column.Table.FullName;
change.AddScript(DbScriptType.ColumnInit, sqlUpdateValues, fullTableRef, column.ColumnName, column.TypeInfo.InitExpression);
}
public override void BuildIndexDropSql(DbObjectChange change, DbKeyInfo key)
{
//for indexes on DB views clustered index must be dropped last and created first
var applyPhase = key.KeyType.IsSet(KeyType.Clustered) ? ApplyPhase.Late : ApplyPhase.Default;
change.AddScript(DbScriptType.IndexDrop, applyPhase, "DROP INDEX \"{0}\" ON {1};", key.Name, key.Table.FullName);
}
public override void BuildPrimaryKeyAddSql(DbObjectChange change, DbKeyInfo key)
{
var pkFields = key.KeyColumns.GetSqlNameList();
var clustered = GetClusteredExpression(key);
change.AddScript(DbScriptType.PrimaryKeyAdd, "ALTER TABLE {0} ADD CONSTRAINT \"{1}\" PRIMARY KEY {2} ({3});", key.Table.FullName, key.Name, clustered, pkFields);
}
public virtual void BuildIndexAddSql(DbObjectChange change, DbKeyInfo key)
{
const string CreateIndexTemplate = @"
CREATE {0} INDEX {1}
ON {2} ( {3} )
{4}
{5}
";
var driver = this.Settings.Driver;
var unique = key.KeyType.IsSet(KeyType.Unique) ? "UNIQUE" : string.Empty;
string indexFields;
if (driver.Supports(DbFeatures.OrderedColumnsInIndexes))
{
indexFields = key.KeyColumns.GetSqlNameListWithOrderSpec();
}
else
{
indexFields = key.KeyColumns.GetSqlNameList();
}
var qKeyName = '"' + key.Name + '"';
string includeList = string.Empty;
if (key.IncludeColumns.Count > 0 && driver.Supports(DbFeatures.IncludeColumnsInIndexes))
{
includeList = "INCLUDE (" + key.IncludeColumns.GetSqlNameList() + ")";
}
string wherePred = string.Empty;
if (!string.IsNullOrWhiteSpace(key.Filter) && driver.Supports(DbFeatures.FilterInIndexes))
{
wherePred = "WHERE " + key.Filter;
}
change.AddScript(DbScriptType.IndexAdd, CreateIndexTemplate, unique, qKeyName, key.Table.FullName, indexFields, includeList, wherePred);
}
public virtual void BuildPrimaryKeyAddSql(DbObjectChange change, DbKeyInfo key)
{
var pkFields = key.KeyColumns.GetSqlNameList();
var tname = key.Table.FullName;
var keyName = QuoteName(key.Name);
change.AddScript(DbScriptType.PrimaryKeyAdd, $"ALTER TABLE {tname} ADD CONSTRAINT {keyName} PRIMARY KEY ({pkFields})");
}
public virtual void BuildColumnSetDefaultValuesSql(DbObjectChange change, DbColumnInfo column)
{
var fullTableRef = column.Table.FullName;
var cn = column.ColumnNameQuoted;
var init = column.TypeInfo.TypeDef.ColumnInit;
change.AddScript(DbScriptType.ColumnInit, $"UPDATE {fullTableRef} SET {cn} = {init} WHERE {cn} IS NULL;");
}
public virtual void BuildViewAddSql(DbObjectChange change, DbTableInfo view)
{
const string sqlTemplate =
@"CREATE VIEW {0} AS
{1}"; //no ';' at the end, SQL must have it already
change.AddScript(DbScriptType.ViewAdd, sqlTemplate, view.FullName, view.ViewSql);
}
// Inject hash value, some servers preserve it, some don't
public virtual void BuildViewAddSql(DbObjectChange change, DbTableInfo view)
{
var viewAddSql =
$@"CREATE VIEW {view.FullName} AS
{view.ViewSql}";
change.AddScript(DbScriptType.ViewAdd, viewAddSql);
}
}//method
public virtual void BuildTableAddSql(DbObjectChange change, DbTableInfo table)
{
const string SqlTemplate = @"CREATE TABLE {0} (" + "\r\n {1} \r\n); ";
var specs = table.Columns.Select(c => GetColumnSpec(c));
var columnSpecs = string.Join("," + Environment.NewLine, specs);
change.AddScript(DbScriptType.TableAdd, SqlTemplate, table.FullName, columnSpecs);
}//method
public override void BuildIndexAddSql(DbObjectChange change, DbKeyInfo key)
{
base.BuildIndexAddSql(change, key);
if (key.KeyType.IsSet(KeyType.Clustered))
{
change.AddScript(DbScriptType.IndexAdd, "ALTER TABLE {0} CLUSTER ON \"{1}\";", key.Table.FullName, key.Name);
}
}
public override void BuildPrimaryKeyAddSql(DbObjectChange change, DbKeyInfo key)
{
var pkFields = key.KeyColumns.GetSqlNameList();
var clustered = GetClusteredExpression(key);
var qn = QuoteName(key.Name);
change.AddScript(DbScriptType.PrimaryKeyAdd, $"ALTER TABLE {key.Table.FullName} ADD CONSTRAINT {qn} PRIMARY KEY {clustered} ({pkFields});");
}
public override void BuildCustomTypeDropSql(DbObjectChange change, DbCustomTypeInfo typeInfo)
{
// We drop only Vita_* automatic types
if (typeInfo.Name.StartsWith("Vita_"))
{
change.AddScript(DbScriptType.CustomTypeDrop, $"DROP TYPE {typeInfo.FullName};");
}
}
public override void BuildColumnModifySql(DbObjectChange change, DbColumnInfo column, DbScriptOptions options = DbScriptOptions.None)
{
var colSpec = GetColumnSpec(column, options);
var tbl = column.Table;
var scriptType = options.IsSet(DbScriptOptions.CompleteColumnSetup) ? DbScriptType.ColumnSetupComplete : DbScriptType.ColumnModify;
change.AddScript(scriptType, $"ALTER TABLE {tbl.FullName} MODIFY COLUMN {colSpec};");
}
public override void BuildIndexAddSql(DbObjectChange change, DbKeyInfo key)
{
base.BuildIndexAddSql(change, key);
if (key.KeyType.IsSet(KeyType.Clustered))
{
var kn = QuoteName(key.Name);
change.AddScript(DbScriptType.IndexAdd, $"ALTER TABLE {key.Table.FullName} CLUSTER ON {kn};");
}
}
public override void BuildColumnRenameSql(DbObjectChange change, DbColumnInfo oldColumn, DbColumnInfo newColumn)
{
var sch = oldColumn.Table.Schema;
var tn = oldColumn.Table.TableName;
var oldColName = oldColumn.ColumnName;
var newColName = newColumn.ColumnName;
change.AddScript(DbScriptType.ColumnRename, $"EXEC SYS.SP_RENAME '{sch}.{tn}.{oldColName}' , '{newColName}', 'COLUMN'");
}
//not supported; all we can do is nullify it; so if it is a FK it no longer holds target refs
public override void BuildColumnDropSql(DbObjectChange change, DbColumnInfo column)
{
//Note: the column drop comes after table-rename, so it might be table is already renamed, and we have to get its new name
var tableName = column.Table.Peer.FullName; //new name if renamed
if (column.Flags.IsSet(DbColumnFlags.Nullable) && column.Flags.IsSet(DbColumnFlags.ForeignKey))
{
change.AddScript(DbScriptType.ColumnInit, "UPDATE {0} SET \"{1}\" = NULL;", tableName, column.ColumnName);
}
}
//Drop table - supported, but will fail if there's an old foreign key to this table. Dropping FKs is not supported,
// so we do not delete the table if there are foreign keys
public override void BuildTableDropSql(DbObjectChange change, DbTableInfo table)
{
var refs = table.GetIncomingReferences();
if (refs.Count > 0)
{
return;
}
base.BuildTableDropSql(change, table);
}
public override void BuildTableConstraintDropSql(DbObjectChange change, DbKeyInfo key)
{
if (key.KeyType == KeyType.PrimaryKey)
{
change.AddScript(DbScriptType.RefConstraintDrop, $"ALTER TABLE {key.Table.FullName} DROP PRIMARY KEY;");
}
else
{
base.BuildTableConstraintDropSql(change, key);
}
}
//Helper methods
protected virtual void BuildColumnRenameSqlWithAddDrop(DbObjectChange change, DbColumnInfo oldColumn, DbColumnInfo newColumn)
{
//Add new column
BuildColumnAddSql(change, newColumn, DbScriptOptions.ForceNull | DbScriptOptions.NewColumn);
// copy data
change.AddScript(DbScriptType.ColumnCopyValues, $"UPDATE {oldColumn.Table.FullName} SET {newColumn.ColumnNameQuoted} = {oldColumn.ColumnNameQuoted};");
// finalize added column
BuildColumnModifySql(change, newColumn, DbScriptOptions.CompleteColumnSetup);
//drop old column
BuildColumnDropSql(change, oldColumn);
}
