private void Initialize()
{
Table.TableName = TableName;
InitializeColumns();
Table.PrimaryKey = PrimaryKeyColumns.Select(i => Table.Columns[i]).ToArray();
IsInitialized = true;
}
private void CreateTempTablePrimaryKey(string tempTableName)
{
using (var cmd = CreateCommandForPrimaryKey())
{
string pkList = string.Join(", ", PrimaryKeyColumns.Select(item => $"[{item}]"));
cmd.CommandText = $"ALTER TABLE [{tempTableName}] " +
$"ADD CONSTRAINT [PK_{tempTableName.Trim(PrefixTempTable)}] " +
$"PRIMARY KEY NONCLUSTERED ({pkList})";
cmd.ExecuteNonQuery();
}
}
public virtual string GetCreateSql(string tableName)
{
string sql = "CREATE ";
if (IsVirtual)
{
sql += "VIRTUAL ";
}
sql += "TABLE " + SQLiteStatement.EscapeName(tableName);
if (!IsVirtual)
{
sql += " (";
sql += string.Join(",", Columns.Select(c => c.GetCreateSql(SQLiteCreateSqlOptions.ForCreateColumn)));
if (PrimaryKeyColumns.Skip(1).Any())
{
string pk = string.Join(",", PrimaryKeyColumns.Select(c => c.EscapedName));
if (!string.IsNullOrWhiteSpace(pk))
{
sql += ",PRIMARY KEY (" + pk + ")";
}
}
sql += ")";
}
if (DisableRowId)
{
// https://sqlite.org/withoutrowid.html
sql += " WITHOUT ROWID";
}
if (IsVirtual)
{
sql += " USING " + Module;
if (ModuleArguments != null && ModuleArguments.Length > 0)
{
sql += "(" + string.Join(",", ModuleArguments) + ")";
}
}
return(sql);
}
/// <summary>
/// Creates a primary key for temporary table.
/// </summary>
/// <param name="tempTableName">Name of the temporary table.</param>
/// <param name="columnName">Name of the column which must be created in temp table. If the value
/// is <see langword="null"/>, no column is created, just the primary key.</param>
private void CreateTempTablePrimaryKey(string tempTableName, string columnName)
{
using (var cmd = CreateCommandForPrimaryKey())
{
if (columnName != null)
{
cmd.CommandText = "SELECT data_type FROM information_schema.columns " +
$"WHERE table_name = '{DestinationTableName}' AND column_name = '{columnName}'";
string dataType = (string)cmd.ExecuteScalar();
cmd.CommandText = $"ALTER TABLE [{tempTableName}] ADD [{columnName}] [{dataType}] NOT NULL";
cmd.ExecuteNonQuery();
}
string pkList = string.Join(", ", PrimaryKeyColumns.Select(item => $"[{item}]"));
cmd.CommandText = $"ALTER TABLE [{tempTableName}] " +
$"ADD CONSTRAINT [PK_{tempTableName.Trim(PrefixTempTable)}] " +
$"PRIMARY KEY NONCLUSTERED ({pkList})";
cmd.ExecuteNonQuery();
}
}
public virtual string BuildCreateSql(string tableName)
{
string sql = "CREATE TABLE " + SQLiteStatement.EscapeName(tableName) + " (";
sql += string.Join(",", Columns.Select(c => c.GetCreateSql(SQLiteCreateSqlOptions.ForCreateColumn)));
if (PrimaryKeyColumns.Count() > 1)
{
string pk = string.Join(",", PrimaryKeyColumns.Select(c => c.EscapedName));
if (!string.IsNullOrWhiteSpace(pk))
{
sql += ",PRIMARY KEY (" + pk + ")";
}
}
sql += ")";
if (DisableRowId)
{
// https://sqlite.org/withoutrowid.html
sql += " WITHOUT ROWID";
}
return(sql);
}
/// <inheritdoc/>
/// <exception cref="ValidationException">Empty secondary key columns collection.</exception>
protected override void ValidateState()
{
using (var ea = new ExceptionAggregator()) {
ea.Execute(base.ValidateState);
// Secondary key columns: empty set, duplicates
var keyColumns = KeyColumns.Select(valueRef => valueRef.Value).ToList();
if (keyColumns.Count == 0)
{
ea.Execute(() => {
throw new ValidationException(Strings.ExEmptyKeyColumnsCollection, Path);
});
}
foreach (var group in keyColumns
.GroupBy(keyColumn => keyColumn)
.Where(group => group.Count() > 1))
{
ea.Execute((_column) => {
throw new ValidationException(
string.Format(Strings.ExMoreThenOneKeyColumnReferenceToColumnX, _column.Name),
Path);
}, group.Key);
}
// Primary key columns
if (PrimaryKeyColumns.Count != Parent.PrimaryIndex.KeyColumns.Count)
{
ea.Execute(() => {
throw new ValidationException(Strings.ExInvalidPrimaryKeyColumnsCollection, Path);
});
}
for (int i = 0; i < PrimaryKeyColumns.Count; i++)
{
var ref1 = PrimaryKeyColumns[i];
var ref2 = Parent.PrimaryIndex.KeyColumns[i];
if (ref1.Value != ref2.Value || ref1.Direction != ref2.Direction)
{
ea.Execute(() => {
throw new ValidationException(Strings.ExInvalidPrimaryKeyColumnsCollection, Path);
});
}
}
// Included columns
var fullKeySet = EnumerableExtensions.ToHashSet(KeyColumns
.Select(cr => cr.Value)
.Concat(PrimaryKeyColumns.Select(cr => cr.Value)));
foreach (var columnRef in IncludedColumns)
{
if (fullKeySet.Contains(columnRef.Value))
{
ea.Execute(() => {
throw new ValidationException(Strings.ExInvalidIncludedColumnsCollection, Path);
});
}
}
foreach (var group in IncludedColumns
.GroupBy(keyColumn => keyColumn)
.Where(group => group.Count() > 1))
{
ea.Execute((_column) => {
throw new ValidationException(
string.Format(Strings.ExMoreThenOneIncludedColumnReferenceToColumnX, _column.Name),
Path);
}, group.Key);
}
ea.Complete();
}
}
public virtual string BuildWherePrimaryKeyStatement() => string.Join(" AND ", PrimaryKeyColumns.Select(c => SQLiteStatement.EscapeName(c.Name) + "=?"));
