cakephp 2.0 hasmany relation retrieve data - count

Question

I have two model name image and comment. here the relation is like image has many comments . Now in my listing page I want to display all imae detail and only the no of comment on that image . can you tell me how should I get that ?
after I write the query my return data is
Array
(
[0] => Array
(
[Image] => Array
(
[image_id] => 57
[user_id] => 1
[category_id] => 22
[image_title] => scroul
[description] => beutifull natural image for the animal
[keyword] => scrual
[image_price] =>
[image_name] => 7bf4a72509da5906903c84e88228b9dd.jpg
[image_path] => img/uploads/images/original/
[image_available_size] =>
[like] => 12
[size] => 3244
[resolution] => 2162 x 1644
[i_date] => 1348573022
[i_by] => 1
[u_date] => 1348573022
[u_by] => 1
[is_active] => Y
[is_deleted] => N
)
[Comment] => Array
(
[0] => Array
(
[comment_id] => 5
[image_id] => 57
[user_id] => 2
[comment] => socute
[comment_date] => 1348739230
[is_active] => N
[is_deleted] => N
)
)
)
[1] => Array
(
[Image] => Array
(
[image_id] => 56
[user_id] => 1
[category_id] => 22
[image_title] => cute dog
[description] => cute dog looking
[keyword] =>
[image_price] =>
[image_name] => d4af899b0d52cccbec94952a3abd0077.jpg
[image_path] => img/uploads/images/original/
[image_available_size] =>
[like] => 8
[size] => 620
[resolution] => 2592 x 1944
[i_date] => 1348572897
[i_by] => 1
[u_date] => 1348572897
[u_by] => 1
[is_active] => Y
[is_deleted] => N
)
[Comment] => Array
(
[0] => Array
(
[comment_id] => 3
[image_id] => 56
[user_id] => 2
[comment] => ohhhhhhh
[comment_date] => 1348737968
[is_active] => N
[is_deleted] => N
)
)
)
[3] => Array
(
[Image] => Array
(
[image_id] => 55
[user_id] => 1
[category_id] => 22
[image_title] => ships
[description] => ships with beutiful green background
[keyword] => ship,green,animal,nature,background,eating,white ship
[image_price] =>
[image_name] => c0dfc2432ae047e9160f3ef99880fe87.jpg
[image_path] => img/uploads/images/original/
[image_available_size] =>
[like] => 1
[size] => 1831
[resolution] => 2520 x 1944
[i_date] => 1348572846
[i_by] => 1
[u_date] => 1348661976
[u_by] => 1
[is_active] => Y
[is_deleted] => N
)
[Comment] => Array
(
[0] => Array
(
[comment_id] => 2
[image_id] => 55
[user_id] => 2
[comment] => i like it
[comment_date] => 1348737942
[is_active] => Y
[is_deleted] => N
)
[1] => Array
(
[comment_id] => 4
[image_id] => 55
[user_id] => 2
[comment] => good scene
[comment_date] => 1348738004
[is_active] => N
[is_deleted] => N
)
)
)
)
in the above array there is a all comment of that image. I don't want here comment list I just want no of comments .

Answer 1

Could you post the find statement you're using. You can set recursive to a certain level, from the documentation:
-1 Cake fetches Group data only, no joins.
0 Cake fetches Group data and its domain
1 Cake fetches a Group, its domain and its associated Users
2 Cake fetches a Group, its domain, its associated Users, and the Users’ associated Articles
So you can call the following if you only want the data from the current model only:
$this->Model->find('all', array('recursive' => -1));
There is also the Containable behavior, which allows you to specify which Model data you want to retrieve when calling find.
Say you have a Post model which hasMany Image. The call, with the Containable behaviour in the Post Model properly included, would be:
$this->Post->find('all', array(
'conditions' => array('Post.id' => 1),
'contain' => array('Image')
));
EDIT:
Because of the spelling and formatting I misread your initial question. I thought you wanted "no comments" to appear in the data array, instead you want only the "number of comments" to appear.
If you want the comment count, use counterCache as Kishor Kundan proposes.

Answer 2

Cake offers another amazing magic, "counterCache".
You can define the counterCache in your Comments model
public $belongsTo = array(
'className' => 'Image',
'foreignKey' => <your_foreign_key>,
...
...
'counterCache' => true
);
Then you add a field, 'comment_count' in your images table (or the table which is being used by the model Image) and the cake will do the rest for you.
This does add an overhead every time a comment is added/deleted but it is far better alternative than to issue an 'count' every time you fetch image data.
For more info you can check the cookbook. Look out for "counterCache" there.
UPDATE:
To limit the scope for counter cache, use additional attribute 'counterScope' as
public $belongsTo = array(
'className' => 'Image',
'foreignKey' => <your_foreign_key>,
...
...
'counterCache' => true,
'counterScope' => array('Image.active' => 1)
);