public EntityMemberInfo(EntityInfo entity, EntityMemberKind kind, string name, Type dataType)
{
Entity = entity;
Kind = kind;
MemberName = ColumnName = DisplayName = name;
DataType = dataType;
if (DataType.IsNullableValueType())
{
Flags |= EntityMemberFlags.Nullable;
}
//Set to nullable if it is Nullable generic
if (DataType == typeof(decimal) || DataType == typeof(decimal?))
{
this.Precision = 18; //defaults
this.Scale = 4;
}
this.AreValuesEqual = MemberValueGettersSetters.AreObjectsEqual;
//Assign default get/set handlers and to-from string converters, and comparer method
MemberValueGettersSetters.AssignDefaultGetSetHandlers(this);
MemberStringConverters.AssignStringConverters(this);
Entity.AddMember(this);
}
private bool TryGetMemberKind(EntityInfo entity, string memberName, Type dataType, out EntityMemberKind kind)
{
kind = EntityMemberKind.Column;
if (dataType.IsValueType || dataType == typeof(string))
{
return(true);
}
var genType = dataType.IsGenericType ? dataType.GetGenericTypeDefinition() : null;
if (genType == typeof(Nullable <>))
{
return(true);
}
if (Model.IsEntity(dataType))
{
kind = EntityMemberKind.EntityRef;
var target = Model.GetEntityInfo(dataType);
if (target != null)
{
return(true);
}
Log.LogError($"Invalid entity reference, type {dataType} is not registered as an entity. Entity member: {entity.Name}.{memberName}");
return(false);
}
if (genType == typeof(IList <>))
{
kind = EntityMemberKind.EntityList;
return(true);
}
// properly report common mistake
if (genType == typeof(List <>))
{
Log.LogError($"Invalid entity member {entity.Name}.{memberName}. Use IList<T> interface for list members. ");
return(false);
}
//default: Column
return(true); //Column; there are some specific types that turn into column (Binary for ex)
}
private bool TryGetMemberKind(EntityInfo entity, PropertyInfo property, out EntityMemberKind kind)
{
return(TryGetMemberKind(entity, property.Name, property.PropertyType, out kind));
}
public EntityMemberInfo[] DependentMembers; //array of (computed) members that depend on this member
public EntityMemberInfo(EntityInfo entity, EntityMemberKind kind, PropertyInfo property) :
this(entity, kind, property.Name, property.PropertyType)
{
ClrMemberInfo = property;
}
