Property [id] does not exist on this collection in Form

Question

I designed form to save data in Laravel

and this problem shows me the following error

Property [id] does not exist on this collection instance.

This is my Code

Controller

public function create  ()
    {

        $post = Post::all();


       return view   ("post.create",compact('post'));
    }

view create.blade.php

<form action="{{url()->action ('PostController@store', ['id'=>$post->id])}}" method="POST">

<input type="text" name="title" placeholder="Write Title">
<input type="text" name="body" placeholder="Write Body">
<input type="submit" value="Submit" name="submit">


</form>

I know the problem is here, but I don't know what I can do

 'PostController@store', ['id'=>$post->id])}}" method="POST"

Possible duplicate of [Property \[id\] does not exist on this collection instance](https://stackoverflow.com/questions/43320223/property-id-does-not-exist-on-this-collection-instance) — dparoli, Aug 19 '19 at 07:16

Watercayman · Answer 1 · 2019-08-19T04:29:19.863

The problem is that you are sending a collection of Post models to your view. The $post variable contains a collection of Post models, which means that the collection will not have an id because it is a collection, not a single Post.

This:

$post = Post::all();

returns a collection.

Because this is a create method, you may wish to new up a Post model:

$post = new Post();

and add a few things to it and save it before sending to the view to get an id, OR, probably more useful: you can open the form without form-model binding since you don't actually have a Post model created yet -- just remove the ['id'=>$post->id] part since there is no post to have an id at the time the form is created.

zaimazhar97 · Answer 2 · 2019-08-19T07:46:14.823

You can make it look cleaner for the route.

web.php

Route::post('/myform/store', 'PostController@store')->name('post.store');

In your view, you can use the route name you just created.

<form action="{{ route('post.store', ['id' => $post->id]) }}" method="post">

But since you don't have column of 'id' in your Post then it returns the error you getting. Try creating a column 'id' first to resolve your problem.

I agree with @Watercayman on using model-binding instead, it's quick and makes the code more readable (and understandable too). Since Laravel quickly matches 'id' with unique id in the database. Take a look here for route parameters (how you can pass your data through URLs) and how to access your parameter here.

Using model binding will return you a collection.

public function store(Post $post)

Your $post variable is a collection so if you want to access your 'id' column you will do $post->id.

score 1 · Accepted Answer · answered Aug 19 '19 at 05:42

This will return the collection

 $post = Post::all();

Instead, pass one object to the view by using

$post = Post::first();

or if u want to check particular post or any other condition you can use where clause to it..

eg: $post = Post::where('id',$user_id)->first(); // It will return single row...It will solve your problem

Property [id] does not exist on this collection in Form

3 Answers3