Howto for hooking beforeUpdate/beforeCreate/beforeSave etc. about jugglingdb

[juggy]

Hello,

The behavior is made to follow active record callbacks concept. Have a look at the first section:

http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html

Small change is that right now save callbacks are not called for update. There are some other bugs related to update I will share in a separate issue.

In your code example, you do not receive an instance to fooInstance. The whole callback in binded to the instance. So you can do this.bar etc.

Hope this answers your question. I think the readme should be updated to reflect this.

[mweibel]

Yeah, perfect. Thanks ;)

[1602]

Hello, please check README (I've just updated it), section 'Object
lifecycle', it describes hooking functionality.

On Fri, Nov 18, 2011 at 2:39 PM, Michael Weibel <
[email protected]

wrote:

Hi,

could you please explain how to use those hooking functionalities?

Do I have to use it like that:

var foo = schema.define('foo', {
 bar: String
});

foo.beforeSave = function(fooInstance) {
 fooInstance.bar = fooInstance.bar + 'foobar';
}

Also I'm interested in hearing how the three mentioned correlate with each
other.. Is some e.g. beforeSave also called when updating/creating a row?

Thanks,
Michael

---

Reply to this email directly or view it on GitHub:
#6

Thanks,
Anatoliy Chakkaev

[mweibel]

Thanks :) It would be perfect if you'd fix the after/before save callbacks (called after the same way as in creating).

Maybe I'll dig a little bit into the code and can provide a patch for it..