Indirect modification of overloaded element

Yii 1.1 General Discussion
1

i am trying to pass a model object to a module, modify it, and then return the result,

but seem unable to modify it, getting: Indirect modification of overloaded element error

eg. in my controller i have:

$artist = Lessons::update($artist);

then in my module class i would have something like:

class Lessons {

public function update($_artist){

$_artist[‘details’][‘name’] = “bob”;

return $_artist;

}

}

but gives an error.

also tried:

$_artist->details->setAttribute(‘name’, ‘bob’);

but also no luck…

any ideas?

2

What is artist? I presume a model… .and what is $artist->details? a relation ?

3

details is a column in the table.

4

So $artist->details is a column in the table…

and you can set it with


$artist->detail = 'bob';

but in your code you use


$model['details']['name'] = 'bob';
5

um, oops. really sorry, was multitasking when i answered that.

actually details is a table relation -> artist has many details and name is column.

if i do an simple $model[‘details’][‘name’] = ‘bob’; sometimes it works and sometimes it doesn’t and i need to use setAttribute.

i’ve always been assuming $model[‘details’][‘name’] is the same as $model->details->name is this incorrect?

thanks for the help

6

Basically


$model->details

gets the value of the property "detail" from the object $model - $model is an OBJECT


$model['detail']

gets the value of the element "detail" from the array $model - $model is an ARRAY

…

When you say sometime it works and sometime not… it’s always with the same relation or there are different relations in question? or even some model attributes?

7

ah, thanks, worked it out.

turned out there was some data/attributes in the $model array that was not part of the model. which was breaking things. lesson learned

8

About another possibility with this very same error:

The same error message happened to me when I was trying to set the CActiveRecord Attributes array.

So I discovered another method to overcome this issue, in a case where the magic method is related to an object variable which contains an array take a look: you create an AUXILIARY ARRAY in which you put the original and the new values (sometimes one wants to REPLACE a value related to one of the keys, and these methods are not satisfactory). And AFTERWARDS use an assignation, which works like the reference. For example, in the next example, I generalize $model->attribute to

"Object->array_built_with_magic", but I used it first with $model->attribute. Take a look:

$auxiliary_array = array();

foreach(Object->array_built_with_magic as $key=>$value) {

if(….) {

$auxiliary_array[$key] = Object->array_built_with_magic[$key];

} else if (…) {

$auxiliary_array[$key] = $NEW_VALUE

}

}

//So now we have the array $auxiliary_array with the

// desired MIX (that is, some originals, some modifications)

//So we will do now:

Object->array_built_with_magic =$auxiliary_array;

I hope it’s useful, regards.

Note: please moderators RESTRAIN from saying “this is an old thread”. It’s quite common to find new solutions after several years from an old problem.

David López

Investigación y Programación