private static void AddNullConstraintIfNecessary(IColumnMapping property, ColumnStatement columnStatement)
{
// TJT: Review this
if (property.IsRequired)
{
// Only mark it as NotNull if it should not be generated.
columnStatement.ColumnConstraints.Add(new NotNullConstraint());
}
}
private static void AddUniqueConstraintIfNecessary(IColumnMapping property, ColumnStatement columnStatement)
{
var value = property.IsUnique;
if (property.IsUnique)
{
var conflictAction = ConflictAction.None;
columnStatement.ColumnConstraints.Add(new UniqueConstraint {
ConflictAction = conflictAction
});
}
}
private IEnumerable <ColumnStatement> CreateColumnStatements()
{
foreach (var property in properties)
{
var columnStatement = new ColumnStatement
{
ColumnName = property.ColumnName,
TypeName = property.ColumnDataType,
ColumnConstraints = new ColumnConstraintCollection()
};
AddMaxLengthConstraintIfNecessary(property, columnStatement);
AdjustDatatypeForAutogenerationIfNecessary(property, columnStatement);
AddNullConstraintIfNecessary(property, columnStatement);
AddUniqueConstraintIfNecessary(property, columnStatement);
AddCollationConstraintIfNecessary(property, columnStatement);
AddPrimaryKeyConstraintAndAdjustTypeIfNecessary(property, columnStatement);
AddDefaultValueConstraintIfNecessary(property, columnStatement);
yield return(columnStatement);
}
}
private static void AddCollationConstraintIfNecessary(IColumnMapping property, ColumnStatement columnStatement)
{
// FIXME:
//var value = property.GetCustomAnnotation<CollateAttribute>();
//if (value != null)
//{
// columnStatement.ColumnConstraints.Add(new CollateConstraint { CollationFunction = value.Collation, CustomCollationFunction = value.Function });
//}
}
private static void AdjustDatatypeForAutogenerationIfNecessary(IColumnMapping property, ColumnStatement columnStatement)
{
// FIXME:
//if (property.StoreGeneratedPattern == StoreGeneratedPattern.Identity)
//{
// // Must be INTEGER else SQLite will not generate the Ids
// ConvertIntegerType(columnStatement);
//}
}
private static void AddMaxLengthConstraintIfNecessary(IColumnMapping property, ColumnStatement columnStatement)
{
if (property.MaxLength.HasValue)
{
columnStatement.ColumnConstraints.Add(new MaxLengthConstraint(property.MaxLength.Value));
}
}
private static void ConvertIntegerType(ColumnStatement columnStatement)
{
const string integerType = "INTEGER";
columnStatement.TypeName = columnStatement.TypeName.ToUpperInvariant() == "INT" ? integerType : columnStatement.TypeName;
}
private void AddPrimaryKeyConstraintAndAdjustTypeIfNecessary(IColumnMapping property, ColumnStatement columnStatement)
{
// Only handle a single primary key this way.
if (keyMembers.Count() != 1 || !property.Equals(keyMembers.Single()))
{
return;
}
ConvertIntegerType(columnStatement);
var primaryKeyConstraint = new PrimaryKeyConstraint();
// FIXME: primaryKeyConstraint.Autoincrement = property.Autoincrement() != null;
columnStatement.ColumnConstraints.Add(primaryKeyConstraint);
}
private static void AddDefaultValueConstraintIfNecessary(IColumnMapping property, ColumnStatement columnStatement)
{
if (!string.IsNullOrEmpty(property.DefaultValue))
{
columnStatement.ColumnConstraints.Add(new DefaultValueConstraint {
DefaultValue = property.DefaultValue
});
}
}
