Comments on: HowTo: CakePHP 1.2 Model ORM Inheritance Hack http://kelnishi.com/blog/20071106/howtos/cakephp-12-model-orm-inheritance-hack/ The details are all wrong. Thu, 02 Feb 2012 18:51:37 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: speedmax http://kelnishi.com/blog/20071106/howtos/cakephp-12-model-orm-inheritance-hack/comment-page-1/#comment-37 speedmax Thu, 06 Dec 2007 03:21:32 +0000 http://kelnishi.com/blog/20071106/howtos/cakephp-12-model-orm-inheritance-hack/#comment-37 hi kevin, can you please post the source code of the sample app? hi kevin,

can you please post the source code of the sample app?

]]> By: kelvin http://kelnishi.com/blog/20071106/howtos/cakephp-12-model-orm-inheritance-hack/comment-page-1/#comment-36 kelvin Wed, 05 Dec 2007 05:22:23 +0000 http://kelnishi.com/blog/20071106/howtos/cakephp-12-model-orm-inheritance-hack/#comment-36 I tried to keep my implementation as simple as possible. As a result it's still kind of kludgy; the attributes aren't perfectly inherited and some operations don't work cleanly. But from what I've used it for, generalizing associations, my hack works pretty well. Performance-wise, it's only 1 more SQL JOIN on the subclass tables, so it's relatively fast imo. With just scaffolding and some naive controllers, CRUD works pretty cleanly so far. I did run into some issues with changing the recursive attributes, but other than that I've had no problems. I tried to keep my implementation as simple as possible. As a result it’s still kind of kludgy; the attributes aren’t perfectly inherited and some operations don’t work cleanly. But from what I’ve used it for, generalizing associations, my hack works pretty well.

Performance-wise, it’s only 1 more SQL JOIN on the subclass tables, so it’s relatively fast imo. With just scaffolding and some naive controllers, CRUD works pretty cleanly so far. I did run into some issues with changing the recursive attributes, but other than that I’ve had no problems.

]]> By: speedmax http://kelnishi.com/blog/20071106/howtos/cakephp-12-model-orm-inheritance-hack/comment-page-1/#comment-35 speedmax Wed, 05 Dec 2007 04:52:09 +0000 http://kelnishi.com/blog/20071106/howtos/cakephp-12-model-orm-inheritance-hack/#comment-35 I think generally Model inheritance is a cool concept. but in the context of relational database it will be quite a effort and overhead. we are talking about the whole CRUD operation here, usually ActiveRecord/ORM implemented on the lowest feature set available across multiple database, some supperts/some doesn't support native table inherithance. it will be painful. If we implement to some extend (eg: limit to max 1 or 2 level of inheritance), i definitely see the practical reason. I think generally Model inheritance is a cool concept. but in the context of relational database it will be quite a effort and overhead.

we are talking about the whole CRUD operation here, usually ActiveRecord/ORM implemented on the lowest feature set available across multiple database, some supperts/some doesn’t support native table inherithance. it will be painful.

If we implement to some extend (eg: limit to max 1 or 2 level of inheritance), i definitely see the practical reason.

]]> By: speedmax http://kelnishi.com/blog/20071106/howtos/cakephp-12-model-orm-inheritance-hack/comment-page-1/#comment-34 speedmax Wed, 05 Dec 2007 00:08:39 +0000 http://kelnishi.com/blog/20071106/howtos/cakephp-12-model-orm-inheritance-hack/#comment-34 Hello there, good work man. Interestingly, i have implemented a similar solution right inside Specific models , however fairly primitive, but similarly it does merge data on on Find. save dynamically to separate table on Save. I would very much like to investigate this with you. perhaps we can implement this try not to touching too much of core lib files. I recently read about django's quest on model inheritance, they have done good investigation. http://code.djangoproject.com/wiki/ModelInheritance I am building sometime it may interest you. a behavior (ObjectizeBehavior allows model to return object instance) , i am writing a article on bakery.. at the mean time here is the code http://bin.cakephp.org/saved/25886 PS: look for speedmax on irc, Hello there, good work man.

Interestingly, i have implemented a similar solution right inside Specific models , however fairly primitive, but similarly it does merge data on on Find. save dynamically to separate table on Save.

I would very much like to investigate this with you. perhaps we can implement this try not to touching too much of core lib files.

I recently read about django’s quest on model inheritance, they have done good investigation.
http://code.djangoproject.com/wiki/ModelInheritance

I am building sometime it may interest you. a behavior (ObjectizeBehavior allows model to return object instance) , i am writing a article on bakery.. at the mean time here is the code
http://bin.cakephp.org/saved/25886

PS: look for speedmax on irc,

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