public static IEnumerable <EntityBuilder> ScanManyToManyRelation(SchemaBuildContext context)
{
return(context.EntityBuilders.Values
.Where(eb => eb.ClrType != null)
.SelectMany(eb => AttributesFromTypeResolver.ValidAttributesFromType(eb.ClrType))
.Select(attr => attr.GetCustomAttribute(typeof(Attributes.ManyToMany)) as Attributes.ManyToMany)
.Where(r => r != null)
.Select(r => new EntityBuilder(context).FromManyToManyRelation(r)));
}
private void ScanForAttributes()
{
var attributesFromTypes = Context.EntityBuilders.Values
.Select(eb => (eb, eb.ClrType))
.Where(tup => tup.ClrType != null)
.SelectMany(tuple =>
AttributesFromTypeResolver.ValidAttributesFromType(tuple.ClrType).Select(prop => (tuple.eb, prop)))
.Select(tuple =>
new AttributeBuilder(Context, Context.Entities[tuple.eb.EntityName]).FromProperty(tuple.prop))
.GroupBy(ab => ab.Entity.EntityName)
.ToDictionary(grp => grp.Key, grp => grp.ToDictionary(attr => attr.Name));
foreach (var(key, value) in attributesFromTypes)
{
foreach (var(_, attributeBuilder) in value)
{
Context.AttributeBuilders.GetOrInsert(key,
new Dictionary <string, AttributeBuilder>())[attributeBuilder.Name] = attributeBuilder;
}
}
var attributesFromRelations = Context.AttributeBuilders.ToDictionary(kv => kv.Key, kv => kv.Value)
.SelectMany(tup => tup.Value.Values.Select(vals => (Entity: tup.Key, Attribute: vals)))
.Select(tup =>
(Entity: tup.Entity
, Relation: tup.Attribute.PropertyInfo.GetCustomAttribute(typeof(Relation)) as Relation
))
.Where(t => t.Relation != null)
.FilterSelect(tup =>
new AttributeBuilder(Context, Context.Entities[tup.Entity]).FromRelation(tup.Relation))
.DistinctBy(attr => (attr.Name, attr.Entity.EntityName))
.GroupBy(ab => ab.Entity.EntityName)
.ToDictionary(grp => grp.Key, grp => grp.ToDictionary(attr => attr.Name));
foreach (var(key, value) in attributesFromRelations)
{
foreach (var(_, attributeBuilder) in value)
{
var dict = Context.AttributeBuilders.GetOrInsert(key,
new Dictionary <string, AttributeBuilder>());
if (dict.GetValueOrDefault(attributeBuilder.Name) == null)
{
dict[attributeBuilder.Name] = attributeBuilder;
}
}
}
}
