Re: tree behaviour and validation rule problem
On 2 Feb, 15:45, John Andersen wrote:
> As I can't see your full code from the moment you retrieve the
> Category and until you try to save it, I can't be sure that you have
> provided the Category.id at the time of saving the updated parent_id.
>
> I just imagine that CakePHP actually may try to add a new record, in
> which case the isUnique should fail.
I developed my code starting from here:
http://realm3.com/articles/drag_and_drop_trees_with_cakephp
At the end of the page there's a "save" function and my code is almost
equal to that one.
$category = $this->Category->find('first', array('conditions' => array
(
'Category.id' => $this_node_id)
));
$this->Category->set($category);
if (isset($category['Category']['id']) && $category['Category']
['parent_id'] !== $this_node_parent_id) {
$ret = $this->Category->save(array('parent_id' =>
$this_node_parent_id));
(the names of the variables are obvious.)
The original code used SetParent that, as you know, is deprecated
now.
I didn't use $this->Category->id = 1234 before $this->Category->save
() because I presumed that find('first') would have the same effect
with the ActiveRecord approach. But I could be totally wrong on this.
And because, before adding the isUnique validation rule, my "save"
function did work.
Anyway, I just added $this->Category->id=1234; before $this->Category-
>save() and the problem is still there. :-(
Thank you
maxx
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Re: tree behaviour and validation rule problem
As I can't see your full code from the moment you retrieve the
Category and until you try to save it, I can't be sure that you have
provided the Category.id at the time of saving the updated parent_id.
I just imagine that CakePHP actually may try to add a new record, in
which case the isUnique should fail.
Does this help?
Enjoy,
John
On Feb 2, 11:09 am, emmexx wrote:
> I wrote a simple model that acts as a tree behaviour.
> The model has a myfield_id field that must follow these rules:
> - if parent_id is empty (root) myfield_id can't be blank
> - if parent_id is not empty myfield_id must be blank (children)
>
> So I wrote a isUnique validation rule for myfield_id. And it seems to
> works if I use the baked add and edit pages.
>
> Then I created another page that uses a javascript widget (tafelTree)
> to show the tree and to drag and drop around nodes.
> In the controller I created a function that receives the id and the
> (new) parent id of a node as a parameter. If node id 1234 with
> parent_id 5432 becomes (in javascript) a children of node 8765 my
> function receives 1234-8765.
> I retrieve the record with:
> $category = $this->Category->find('first',
> array('conditions' => array('Category.id' =>1234))
> );
> and try to save it with:
> $ret = $this->Category->save(array('parent_id' => 8765));
>
> This fails with a validation error for the isUnique rule.
> I put a log line in the isUnique function (in cake/lib.../model.php)
> to see what is the "condition" that creates the error and...
>
> (
> [or] => Array
> (
> [Category.myfield_id] =>
> )
>
> [Category.id !=] => 1234
> )
>
> But this is the same condition that I found when saving that record
> using the edit function (with no error).
> So I don't understand why there's a validation error when the
> condition is the same.
>
> Any suggestion?
>
> Thank you
>
> maxx
>
> p.s. En passent... the childrenCount function doesn't work properly
> with my data. It reports a number of nodes greater than the real
> number. I "verified" and "reordered" my data but the results of the
> function are still wrong.
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tree behaviour and validation rule problem
I wrote a simple model that acts as a tree behaviour.
The model has a myfield_id field that must follow these rules:
- if parent_id is empty (root) myfield_id can't be blank
- if parent_id is not empty myfield_id must be blank (children)
So I wrote a isUnique validation rule for myfield_id. And it seems to
works if I use the baked add and edit pages.
Then I created another page that uses a javascript widget (tafelTree)
to show the tree and to drag and drop around nodes.
In the controller I created a function that receives the id and the
(new) parent id of a node as a parameter. If node id 1234 with
parent_id 5432 becomes (in javascript) a children of node 8765 my
function receives 1234-8765.
I retrieve the record with:
$category = $this->Category->find('first',
array('conditions' => array('Category.id' =>1234))
);
and try to save it with:
$ret = $this->Category->save(array('parent_id' => 8765));
This fails with a validation error for the isUnique rule.
I put a log line in the isUnique function (in cake/lib.../model.php)
to see what is the "condition" that creates the error and...
(
[or] => Array
(
[Category.myfield_id] =>
)
[Category.id !=] => 1234
)
But this is the same condition that I found when saving that record
using the edit function (with no error).
So I don't understand why there's a validation error when the
condition is the same.
Any suggestion?
Thank you
maxx
p.s. En passent... the childrenCount function doesn't work properly
with my data. It reports a number of nodes greater than the real
number. I "verified" and "reordered" my data but the results of the
function are still wrong.
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their CakePHP related questions.
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