On Feb 2, 2016, at 1:51 PM, Scott Ahten
<[email protected]<mailto:[email protected]>> wrote:
- (void)awakeFromInitializer
{
[self setValue:@"my-model" ofProperty:@"type"];
}
I don’t recommend setting any properties (especially ‘type’) in
-awakeFromInitializer. Instead, set the ‘type’ property when creating the
document, i.e. in the +newMyModel… method. This helps consolidate your document
initialization code and ensures that the document can’t be declared (via its
‘type’) as being a MyModel without having the other required properties set.
(We found a bug in ToDoLite last week that was like this. It was possible to
load a Task model object for a nonexistent document, which led to the ‘type’
property being set by a method like the one above, and then autosave caused the
bogus Task to be saved to the database. Unfortunately the document had no other
properties, so a view’s map function that tried to operate on its listID barfed
when it got nil.)
—Jens
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