15 Essential CakePHP Tips « nuts and bolts of cakephp. Forcing an SQL JOIN in CakePHP « nuts and bolts of cakephp. Update (10/7/2009)… this functionality has been rolled into Habtamable behavior You’ve probably noticed that by default CakePHP will only create a JOIN query if you have a hasOne or belongsTo associations between your models. There are cases, however, when a JOIN is necessary to get just the right data. So how do you tell cake to create a JOIN? Well, you have to rely on some crafty methods, but all in all it’s not very hard, once you get the hang of it… I will summarize here a few tricks I’ve encountered on the google group, so big thanks to the original authors of these ideas. Let’s take our favorite sample models: User hasMany Post and Post hasAndBelongsToMany Tag If we were to do: $this->User->find(‘all’); CakePHP will run a few selects and return you all the User data. So let’s try to force cake to do a JOIN… First things first, we have to make cake forget about our previous bindings between the models: We can use bindModel() to achieve that: So what’s going on here?
SELECT `User`. Like this: Quick Tip - Doing Ad-hoc Joins in Model::find() (Articles) | The. Herewith, a little-known query trick that allows you to do simple ad-hoc joins in your CakePHP finder queries. No binding or unbinding required. Note: This only works if you are using the new Model::find() syntax, which only takes two parameters. If not, please refer to the Cookbook or API.
Part of the "zen" of CakePHP's design is the way in which things are layered. For example, many helper methods take an $options parameter, and methods which are built on top of other methods (think FormHelper or PaginatorHelper) allow you to pass in options at the top level that get passed down to the lower levels, giving you very granular control, even at high levels of abstraction.
So it is with the Model layer. One example I see commonly for this is searching tags, which are joined to a model via a hasAndBelongsToMany association. Controller Class: <? Model Class: <? Public function find($type, $options = array()) { if (! $bind = $options['model'] . '.' . <? Using the Unobtrusive Date Picker Widget in CakePHP (Articles) |
The default CakePHP date selection boxes are rather a pain in the rear. Wouldn't it be nice if you could use a Date-Picker in your app's? Well you can, and it's rather easy to implement. First things first Download and extract the Unobtrusive Date-Picker Widget here: Copy the 'css/datepicker.css' file to 'app/webroot/css' Copy the 'js/datepicker.js' file to 'app/webroot/js' Copy the contents of the media folder to 'app/webroot/img/datepicker' Open the datepicker.css file in your 'app/webroot/css' folder. Using the Find/Replace functionality of your editor replace all occurences of '.. /media' with '.. /img/datepicker' Edit the default view Note: If you do not have a default.thtml file then you will need to create one, for simplicity you can just copy Cake's default one from 'cake/libs/view/templates/layouts' to 'app/views/layouts' and edit the latter.
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