laravel Undefined variable when i post multiple value to view

Question

In controller when i try to send multiple value to view such as this codes:

$content = Contents::find($contents);
$content_categories['categories'] = ContentCategories::all()->pluck('title', 'id');
$selected_categories['selected_categories'] = $content->categories()->pluck('title', 'id');

return view('layouts.backend.pages.manage_contents.edit', compact($selected_categories, $content_categories, ['content' => $content]));

i get error for this variables into view:

$categories
$selected_categories
$content

result of dd(['content' => $content], $content_categories, $selected_categories); is:

array:1 [▼
  "content" => Contents {#220 ▶}
]

array:1 [▼
  "categories" => Collection {#214 ▶}
]

array:1 [▼
  "selected_categories" => Collection {#227 ▶}
]

whats problem of my code to parse them on view or send them with correct way

my view:

1) {{ Form::select('categories[]', $categories, $selected_categories, array('class' => 'multiselect-success','multiple'=>'multiple')) }}

2) action="{{ route('manage_contents.update' , ['id' => $content->id ]) }}"

Errors:

"Undefined variable: categories (View: /Applications/XAMPP/xamppfiles/htdocs/alachiqServer/resources/views/layouts/backend/pages/manage_contents/edit.blade.php)"

"Undefined variable: selected_categories (View: /Applications/XAMPP/xamppfiles/htdocs/alachiqServer/resources/views/layouts/backend/pages/manage_contents/edit.blade.php)"

"Undefined variable: content (View: /Applications/XAMPP/xamppfiles/htdocs/alachiqServer/resources/views/layouts/backend/pages/manage_contents/edit.blade.php)"

compact() takes a variable number of parameters. Each parameter can be either a string containing the name of the variable, or an array of variable names. The array can contain other arrays of variable names inside it; compact() handles it recursively. php.net/manual/en/function.compact.php — Chay22
– Chay22, Commented Dec 7, 2017 at 10:37

Hiren Gohel · Accepted Answer · 2017-12-07 10:40:04Z

1

You can try this:

$content_categories = ContentCategories::all()->pluck('title', 'id');
$selected_categories = $content->categories()->pluck('title', 'id');

return view('layouts.backend.pages.manage_contents.edit', compact('selected_categories', 'content_categories', 'content'));

Hope this helps you!

answered Dec 7, 2017 at 10:40

Hiren Gohel

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1 Comment

Hiren Gohel Over a year ago

Have you checked this?

Gautam Patadiya · Accepted Answer · 2017-12-07 10:43:12Z

1

You need to change your code something like this to pass value.

return view('layouts.backend.pages.manage_contents.edit', compact('selected_categories', 'content_categories','content'));

Second point you getting undefined $categories because you are not passing categories into compact function. you need to pass categories variable into compact function.

I think you need to change select tag code like this:

{{ Form::select('categories[]', $selected_categories['categories'], NULL , array('class' => 'multiselect-success','multiple'=>'multiple')) }}

Hope can help you. Good Luck!

answered Dec 7, 2017 at 10:43

Gautam Patadiya

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Comments

vijaykumar · Accepted Answer · 2017-12-07 10:43:15Z

1

Try this way

$content = Contents::find($contents);
$categories = ContentCategories::all()->pluck('title', 'id');
$selected_categories = $content->categories()->pluck('title', 'id');

return view('layouts.backend.pages.manage_contents.edit', compact($selected_categories, $content_categories, $content));

answered Dec 7, 2017 at 10:43

vijaykumar

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Comments

linktoahref · Accepted Answer · 2017-12-07 12:10:57Z

0

Pass the variables to the compact without the $ sign

$categories = ContentCategories::all()->pluck('title', 'id');
$selected_categories = $content->categories()->pluck('title', 'id');

return view('layouts.backend.pages.manage_contents.edit', 
             compact('selected_categories', 'content_categories',
                     'content'));

edited Dec 7, 2017 at 12:10

answered Dec 7, 2017 at 10:35

linktoahref

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1 Comment

DolDurma Over a year ago

i get this error: Undefined variable: categories

Gothiquo · Accepted Answer · 2017-12-07 10:47:57Z

0

Try this way:

return view('layouts.backend.pages.manage_contents.edit', compact('selected_categories', 'content_categories', 'content'));

answered Dec 7, 2017 at 10:47

Gothiquo

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