/// <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 LoadForeignKeyMappingAttributes()
{
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(ForeignKeyAttribute), false);
foreach (ForeignKeyAttribute attr in attrs)
{
attr.TargetMember = mi;
attr.TargetMemberType = miType;
if (!FieldMappings.ContainsKey(mi.Name))
{
FieldMappings[mi.Name]
= new DataModelColumnAttribute(attr.ForeignColumn);
}
if (FieldMappings[mi.Name].ForeignKeyMapping != null && !attr.ClearBaseObjectMapping)
{
attr.CopyDeltaTo(FieldMappings[mi.Name].ForeignKeyMapping);
}
else
{
FieldMappings[mi.Name].ForeignKeyMapping = attr;
}
}
}
}
}
public override string MapFieldType(FieldType type, DataFieldInfo dfi)
{
if (type == FieldType.UserString)
{
return(dfi.DataFieldString);
}
else
{
if (dfi.DataFieldType != FieldType.Default)
{
FieldMapInfo info = FieldMappings[dfi.DataFieldType];
return(string.Format(info.TypeString, ResolveLength(dfi.FieldLength, info.DefaultLength)));
}
else if (FieldMappings.ContainsKey(type))
{
FieldMapInfo info = FieldMappings[type];
return(string.Format(info.TypeString, ResolveLength(dfi.FieldLength, info.DefaultLength)));
}
else
{
return("nvarchar(200)");
}
}
}
private void LoadFieldMappingAttributes()
{
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(DataModelColumnAttribute), false);
if (!TypeIsFieldMappable(miType))
{
if (attrs.Length > 0)
{
throw new InvalidAttributeException("Cannot apply a " + typeof(DataModelColumnAttribute).Name
+ " to a member having a custom or complex type. "
+ "Use " + typeof(ForeignDataModelAttribute).Name + ".",
mi.Name, (Attribute)attrs[0]);
}
continue;
}
foreach (DataModelColumnAttribute attr in attrs)
{
attr.TargetMember = mi;
attr.TargetMemberType = miType;
if (string.IsNullOrEmpty(attr.ColumnName))
{
attr.ColumnName = mi.Name;
attr.IsColumnNameInferred = true;
}
if (FieldMappings.ContainsKey(mi.Name) && !attr.ClearBaseObjectMapping)
{
attr.CopyDeltaTo(FieldMappings[mi.Name]);
}
else
{
FieldMappings[mi.Name] = attr;
}
var fm = FieldMappings[mi.Name];
if (fm.DataType == null)
{
var def = miType;
Type[] genargs;
if (def.IsGenericType &&
(genargs = def.GetGenericArguments()).Length == 1)
{
def = genargs[0];
}
try
{
fm.DbType = DbTypeConverter.ToDbType(def);
}
catch { }
}
}
}
}
if ((FieldMappings.Count == 0 && TableMapping.PropertyLoadBehavior
== InferProperties.OnlyAttributedOrAllIfNoneHaveAttributes) ||
TableMapping.PropertyLoadBehavior == InferProperties.NotIgnored)
{
foreach (var type in hierarchy)
{
var pis = type.GetProperties(BindingFlags.Public | BindingFlags.DeclaredOnly | BindingFlags.Instance);
var fis = type.GetFields(BindingFlags.Public | BindingFlags.DeclaredOnly | BindingFlags.Instance);
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;
if (!FieldMappings.ContainsKey(mi.Name))
{
var miType = mi_kvp.Value;
var ignoreAttrib = mi.GetCustomAttributes(typeof(DataModelIgnoreAttribute), false);
if (ignoreAttrib != null && ignoreAttrib.Length > 0)
{
continue;
}
var gt = miType;
if (!TypeIsFieldMappable(gt))
{
continue;
}
var attr = new DataModelColumnAttribute(mi.Name);
attr.TargetMember = mi;
attr.TargetMemberType = miType;
FieldMappings[mi.Name] = attr;
var fm = attr;
if (fm.DataType == null)
{
var def = miType;
Type[] genargs;
if (def.IsGenericType &&
(genargs = def.GetGenericArguments()).Length == 1)
{
def = genargs[0];
}
try
{
fm.DbType = DbTypeConverter.ToDbType(def);
}
catch
{
}
}
}
}
}
}
}
