/// <summary>
/// Gets the <see cref="DataModelColumnAttribute"/> having the
/// specified name and naming type.
/// </summary>
/// <param name="propertyNameOrColumnName"></param>
/// <returns></returns>
public DataModelColumnAttribute this[string propertyNameOrColumnName]
{
get
{
if (FieldMappings.ContainsKey(propertyNameOrColumnName))
{
return(FieldMappings[propertyNameOrColumnName]);
}
var ret = GetFieldMappingByDbColumnName(propertyNameOrColumnName);
if (ret != null)
{
return(ret);
}
if (ForeignModelMappings.ContainsKey(propertyNameOrColumnName))
{
if (FieldMappings.ContainsKey(ForeignModelMappings[propertyNameOrColumnName].TargetMember.Name))
{
return(FieldMappings[ForeignModelMappings[propertyNameOrColumnName].TargetMember.Name]);
}
var foreignMapping = ForeignModelMappings[propertyNameOrColumnName];
var mapping = FieldMappings.ToList().Find(fm => fm.Value.ColumnName == foreignMapping.LocalColumn).Value;
return(mapping);
}
return(null);
}
}
private void LoadForeignDataModelMappingAttributes()
{
var hierarchy = new List <Type>();
var t = this.EntityType;
while (t != typeof(DataModel) && t != typeof(object))
{
hierarchy.Insert(0, t);
t = t.BaseType;
}
// walk up hierarchy
foreach (var type in hierarchy)
{
var pis = type.GetProperties();
var fis = type.GetFields();
var mis = new Dictionary <MemberInfo, Type>();
foreach (var fi in fis)
{
mis.Add(fi, fi.FieldType); // fee fi fo fum
}
foreach (var pi in pis)
{
mis.Add(pi, pi.PropertyType);
}
foreach (var mi_kvp in mis)
{
var mi = mi_kvp.Key;
var miType = mi_kvp.Value;
var attrs = mi.GetCustomAttributes(typeof(ForeignDataModelAttribute), false);
foreach (ForeignDataModelAttribute attr in attrs)
{
attr.TargetMember = mi;
attr.TargetMemberType = miType;
if (ForeignModelMappings.ContainsKey(mi.Name) && !attr.ClearBaseObjectMapping)
{
attr.CopyDeltaTo(ForeignModelMappings[mi.Name]);
}
else
{
ForeignModelMappings[mi.Name] = attr;
}
}
}
}
}
