public static Boolean IsModel(Type t)
{
var table_attribute = ModelCache.GetTableAttribute(t);
var column_attributes = ModelCache.GetColumnMembers(t);
return(table_attribute != null && column_attributes != null && column_attributes.Any());
}
public static String TableName(Type t)
{
var ta = ModelCache.GetTableAttribute(t);
if (ta == null)
{
return(null);
}
if (!String.IsNullOrEmpty(ta.TableName))
{
return(ta.TableName);
}
else
{
return(t.Name);
}
}
public static void CheckColumns(Type t)
{
if (ModelCache.GetTableAttribute(t) != null)
{
var databaseColumns = Schema.GetColumnsForTable(Model.TableName(t), Model.DatabaseName(t), Model.ConnectionString(t));
var columnMembers = Model.GenerateColumnMembers(t);
foreach (var cm in columnMembers)
{
var modelColumn = cm.ColumnAttribute;
if (!modelColumn.IsForReadOnly)
{
if (!databaseColumns.Any(c => c.Name.Equals(cm.Name, StringComparison.InvariantCultureIgnoreCase)))
{
throw new ColumnMissingException(String.Format("\'{0}\' : Column in the model doesn't map to the schema.", cm.Name));
}
var databaseColumn = databaseColumns.FirstOrDefault(c => c.Name.Equals(cm.Name, StringComparison.InvariantCultureIgnoreCase));
if (!modelColumn.IsPrimaryKey && databaseColumn.CanBeNull != modelColumn.CanBeNull)
{
throw new ColumnNullabilityException(String.Format("Column Nullability Mismatch : {4} DBColumn: {0} {2} ModelColumn: {1} {3}"
, databaseColumn.Name
, cm.Name
, databaseColumn.CanBeNull.ToString()
, modelColumn.CanBeNull.ToString()
, Model.TableName(t))
);
}
}
}
foreach (var column in databaseColumns)
{
if (!column.IsForReadOnly)
{
if (!columnMembers.Any(c => c.Name.Equals(column.Name, StringComparison.InvariantCultureIgnoreCase)))
{
throw new ColumnMissingException(String.Format("\'{0}\' : Column in the schema ({1}) doesn't map to the model.", column.Name, Model.TableName(t)));
}
}
}
}
}
public static String ConnectionString(Type t)
{
var ta = ModelCache.GetTableAttribute(t);
if (ta == null)
{
throw new SchemaMetadataException("Base Model classes must have a 'Table' attribute specifying the relation in the database to interact with!");
}
if (!String.IsNullOrEmpty(ta.ConnectionName))
{
return(DatabaseConfigurationContext.ConnectionStrings[ta.ConnectionName]);
}
else if (!String.IsNullOrEmpty(DatabaseConfigurationContext.DefaultConnectionString))
{
return(DatabaseConfigurationContext.DefaultConnectionString);
}
else
{
throw new SchemaMetadataException("No connection string for object.");
}
}
public static Boolean UseNoLock(Type t)
{
return(ModelCache.GetTableAttribute(t).UseNoLock);
}
public static String SchemaName(Type t)
{
var schemaName = ModelCache.GetTableAttribute(t).SchemaName;
return(schemaName ?? DatabaseConfigurationContext.DefaultSchemaName ?? "dbo");
}
public static String DatabaseName(Type t)
{
var databaseName = ModelCache.GetTableAttribute(t).DatabaseName;
return(!String.IsNullOrEmpty(databaseName) ? databaseName : DatabaseConfigurationContext.DefaultDatabaseName);
}
public static String ConnectionName(Type t)
{
TableAttribute ta = ModelCache.GetTableAttribute(t);
return(ta.ConnectionName ?? DatabaseConfigurationContext.DefaultConnectionName);
}
