/// <summary>
/// Gets the name of the column for the property from the metadata.
/// Set nestedProperty for the property of a complex type to lookup.
/// </summary>
/// <param name="mappingFragment">EF metadata for finding mappings.</param>
/// <param name="edmProperty">The of the model to find the column for (for simple types), or for complex types this is the containing complex type.</param>
/// <param name="nestedProperty">Only required to map complex types. The property of the complex type to find the column name for.</param>
/// <returns>The column name for the property</returns>
/// <exception cref="EnumGeneratorException">
/// </exception>
private static string GetColumnName(StructuralTypeMapping mappingFragment, EdmProperty edmProperty, EdmProperty nestedProperty = null)
{
var propertyMapping = GetPropertyMapping(mappingFragment, edmProperty);
if (nestedProperty != null)
{
var complexPropertyMapping = propertyMapping as ComplexPropertyMapping;
if (complexPropertyMapping == null)
{
throw new EnumGeneratorException(string.Format(
"Failed to cast complex property mapping for {0}.{1} to ComplexPropertyMapping", edmProperty, nestedProperty));
}
var complexTypeMappings = complexPropertyMapping.TypeMappings;
if (complexTypeMappings.Count() != 1)
{
throw new EnumGeneratorException(string.Format(
"{0} complexPropertyMapping TypeMappings found for property {1}.{2}", complexTypeMappings.Count(), edmProperty, nestedProperty));
}
var complexTypeMapping = complexTypeMappings.Single();
var propertyMappings = complexTypeMapping.PropertyMappings.Where(pm => pm.Property.Name == nestedProperty.Name).ToList();
if (propertyMappings.Count() != 1)
{
throw new EnumGeneratorException(string.Format(
"{0} complexMappings found for property {1}.{2}", propertyMappings.Count(), edmProperty, nestedProperty));
}
propertyMapping = propertyMappings.Single();
}
return(GetColumnNameFromPropertyMapping(edmProperty, propertyMapping));
}
private static PropertyMapping GetPropertyMapping(StructuralTypeMapping mappingFragment, EdmProperty edmProperty)
{
var matches = mappingFragment.PropertyMappings.Where(m => m.Property.Name == edmProperty.Name).ToList();
if (matches.Count() != 1)
{
throw new EnumGeneratorException(string.Format(
"{0} matches found for property {1}", matches.Count(), edmProperty));
}
var match = matches.Single();
return(match);
}
