如何根据cakephp中其他表的结果从数据库表中获取结果？

Question

For example I have the following tables in my database:

• People
• Groups

And in the People table I have the following columns:

• Name
• Birthdate
• Group

In the Groups table I have the following columns:

• Name
• Colour

Now I want to fetch results from my database to make a list of all the People . So I would use this:

$this->set('people', $this->Person->find("all"));

And obviously in my view I would loop through the returned array and display it. Now I also want to find out for each person in the list what Colour and Group name they are (retrieved from the groups table).

How would I go about this in CakePHP.

Answer 1

First make sure your model relationships are defined. Second, you might want to consider using "id" fields for your related tables (I assume you did and maybe just did not include them in your original questions table definitions).

And yes, run debug ($this->Person->find("all")) as Elwhis noted to see what your array is dumping out.

And if this is a mission critical application, be sure to use containable instead of recursive to prevent taxing queries to your db.

Answer 2

You have to set the recursive attribute. But I guess it should work with the default value. Put this line in your controller debug($this->Person->find("all")) and check whether the data doesn't already contain you desired group information.

If not, try setting $this->Person->recursive = 1; before calling the find() function

For more information about recursive : http://book.cakephp.org/view/1063/recursive