Seems like Contain can't find out to make a join when there is a
hasMany relationship between the Author and the Article models. I made
changes to Example A, so that Contain makes a LEFT JOIN, which
includes Authors with no Articles :)
1) Unbind the hasMany relationship.
2) Bind a hasOne relationship.
3) Make the find on the Author model - I have include two author ids
with articles and one (13) without articles.
[code]
$this->Article->Author->unbindModel( array('hasMany' => array
('Article')));
$this->Article->Author->bindModel( array('hasOne' => array
('Article')));
$results = $this->Article->Author->find(
'all',
array(
'contain' => array('Article'),
'fields' => array('Author.id', 'Author.name', 'COUNT
(Article.id) as article_count'),
'conditions' => array('Author.id' => array(1,2,13)),
'group' => array('Author.id', 'Author.name'),
)
);
debug($results);
[/code]
The result is:
[result]
28871\controllers\articles_controller.php (line 48)
Array
(
[0] => Array
(
[Author] => Array
(
[id] => 1
[name] => Hans Christian Andersen
)
[0] => Array
(
[article_count] => 19
)
)
[1] => Array
(
[Author] => Array
(
[id] => 2
[name] => Terry Prattchet
)
[0] => Array
(
[article_count] => 19
)
)
[2] => Array
(
[Author] => Array
(
[id] => 13
[name] => Test
)
[0] => Array
(
[article_count] => 0
)
)
)
[/result]
Hope this helps you on the way,
John
On Dec 30, 6:52 am, Jeremy Burns <jeremybu...@me.com> wrote:
> Thanks John. Option B does indeed work - sort of! It returns a list of
> location types with a count of their locations, but only where there
> is a location. In other words, it does not give me the location types
> that do not have have any locations.
>
> Any more ideas - anyone?
>
> On Dec 29, 12:35 pm, John Andersen <j.andersen...@gmail.com> wrote:
>
> > A correction, example A gives the author with all the articles, but
> > the article count is 1 (one) - so no luck using that!
> > Enjoy,
> > John
> > [snip]
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