public ReflectionTableColumn(IDatabaseDialect dialect, PropertyInfo prop, Type declaredColumnType, bool isNullable)
{
Property = prop ?? throw new ArgumentNullException(nameof(prop));
Dialect = dialect ?? throw new ArgumentNullException(nameof(dialect));
if (declaredColumnType == null)
{
throw new ArgumentNullException(nameof(declaredColumnType));
}
Name = dialect.GetAliasOrDefault(prop);
var clrType = GetClrType(declaredColumnType);
if (clrType == null)
{
throw new ArgumentNullException($"The declared column type does not implement IDbType<T>. Check { prop.ReflectedType.FullName }.{ prop.Name } and ensure that the column type { declaredColumnType.FullName } implements this interface.", nameof(declaredColumnType));
}
var columnType = new ReflectionColumnDataType(dialect, declaredColumnType, clrType);
var autoIncrAttr = dialect.GetDialectAttribute <AutoIncrementAttribute>(declaredColumnType)
?? dialect.GetDialectAttribute <AutoIncrementAttribute>(prop);
if (autoIncrAttr != null)
{
if (!ValidAutoIncrementTypes.Contains(columnType.DataType))
{
throw new ArgumentNullException($"The column { prop.ReflectedType.FullName }.{ prop.Name } is declared as being auto incrementing, which is not supported on a '{ columnType.DataType }' data type.", nameof(declaredColumnType));
}
AutoIncrement = new AutoIncrement(autoIncrAttr.InitialValue, autoIncrAttr.Increment);
}
Type = columnType;
IsNullable = isNullable;
}
/// <summary>
/// Retrieves the resolved schema-qualified name for an object type.
/// </summary>
/// <param name="dialect">A dialect that the name should be qualified for.</param>
/// <param name="database">The database that an object should be qualified for.</param>
/// <param name="type">The type of object that the attribute is applied to.</param>
/// <returns>A schema-qualified name for a database object.</returns>
/// <exception cref="ArgumentNullException"><paramref name="dialect"/>, <paramref name="database"/>, or <paramref name="type"/> is <c>null</c></exception>
public static Identifier GetQualifiedNameOrDefault(this IDatabaseDialect dialect, IRelationalDatabase database, Type type)
{
if (dialect == null)
{
throw new ArgumentNullException(nameof(dialect));
}
if (database == null)
{
throw new ArgumentNullException(nameof(dialect));
}
if (type == null)
{
throw new ArgumentNullException(nameof(type));
}
var schemaName = dialect.GetSchemaOverride(type);
if (schemaName.IsNullOrWhiteSpace())
{
schemaName = database.IdentifierDefaults.Schema;
}
var localName = dialect.GetAliasOrDefault(type);
return(Identifier.CreateQualifiedIdentifier(schemaName, localName));
}
public ReflectionDatabaseTableIndex(IDatabaseDialect dialect, IRelationalDatabaseTable table, IModelledIndex index)
{
if (dialect == null)
{
throw new ArgumentNullException(nameof(dialect));
}
if (table == null)
{
throw new ArgumentNullException(nameof(table));
}
if (index == null)
{
throw new ArgumentNullException(nameof(index));
}
IsUnique = index.IsUnique;
Name = dialect.GetAliasOrDefault(index.Property !);
var tableType = index.Property !.ReflectedType;
var propertyLookup = tableType.GetProperties()
.Select(p => new KeyValuePair <string, PropertyInfo>(p.Name, p))
.ToDictionary();
var tableColumnLookup = table.GetColumnLookup();
var columns = new List <IDatabaseIndexColumn>();
var includedColumns = new List <IDatabaseColumn>();
var isFunctionBasedIndex = false;
foreach (var indexColumn in index.Columns)
{
if (indexColumn.Expression.IsIdentity)
{
var expressionName = indexColumn.Expression.DependentNames.Single().LocalName;
var columnName = dialect.GetAliasOrDefault(propertyLookup[expressionName]);
var tableColumn = tableColumnLookup[columnName];
var textExpression = indexColumn.Expression.ToSql(dialect);
var column = new DatabaseIndexColumn(textExpression, tableColumn, indexColumn.Order);
columns.Add(column);
}
else
{
isFunctionBasedIndex = true;
var tableColumns = indexColumn.Expression.DependentNames
.Select(name => propertyLookup.ContainsKey(name.LocalName) ? propertyLookup[name.LocalName] : null)
.Where(prop => prop != null)
.Select(prop => dialect.GetAliasOrDefault(prop !))
.Select(name => tableColumnLookup[name])
.ToList();
var textExpression = indexColumn.Expression.ToSql(dialect);
var column = new DatabaseIndexColumn(textExpression, tableColumns, indexColumn.Order);
columns.Add(column);
}
}
foreach (var includedColumn in index.IncludedColumns)
{
var includedColumnName = dialect.GetAliasOrDefault(includedColumn.Property !);
var column = tableColumnLookup[includedColumnName];
includedColumns.Add(column);
}
IsFunctionBased = isFunctionBasedIndex;
Columns = columns;
IncludedColumns = includedColumns;
}
