passing variable from blade(view) to route or controller - php

Question

I want to pass the selected item's $id to my controller for doing changing on it .
it's my index.blade.php (view)code
<table>
#foreach($posts as $p)
<tr>
<td>{{$p->title}}</td>
<td>{{substr($p->body,0,120).'[...]'}}</td>
<td>{{HTML::link('posts_show',' Preview',array($p->id))}}</td>
<td>{{HTML::link('posts_edit','Edit',array($p->id))}}</td>
<td>
{{Form::open(array('method'=>'DELETE','url'=>array('posts.delete',$p->id)))}}
{{Form::submit('Delete')}}
{{Form::close()}}
</td>
</tr>
#endforeach
</table>
but it doesnt pass $id to my controller's methods.
thanks for your time.

Answer 1

What you need to do is to set route parameter. Your route should be like that.
Route::get('post','postController#index');
Route::get('posts_create', function (){ return View::make('admin.newPost'); });
Route::get('posts_show/{id}','postController#show');
Route::get('posts_edit/{id}','postController#edit');
Route::post('posts_delete/{id}','postController#destroy');
If you want to use named route {{ Form::open(array('url' => route('posts.edit', $p->id))) }}, you need to set name like that.
Route::post('posts_edit/{id}', array('uses' => 'postController#edit',
'as' => 'posts.edit'));
You can check routing in laravel official documentation.
Edit
For now, your form in view look like that.
{{ Form::open(array('url' => route('posts.edit', $post->id), 'method' => 'POST')) }}
In route,
Route::post('posts_edit/{id}', array('uses' => 'postController#edit',
'as' => 'posts.edit'));
In PostController,
public function edit($id)
{
// do something
}
I hope it might be useful.

Answer 2

Looks like your route has a name posts.destroy, if that is the case you should use route instead of url as a parameter
{{Form::open(array('method'=>'DELETE','route'=>array('posts.destroy',$p->id)))}}

Answer 3

it's my route:
Route::get('post','postController#index');
Route::get('posts_create', function (){ return View::make('admin.newPost'); });
Route::get('posts_show','postController#show');
Route::get('posts_edit','postController#edit');
Route::post('posts_delete','postController#destroy');
it's my postController:
class postController extends BaseController{
public function show($id){
$post=Post::find($id);
$date=$post->persian_date;
return View::make('posts.show')->with('post',$post)->with('date',$date);
}
public function edit($id){
$post=Post::find($id);
if(is_null($post)){
return Redirect::route('posts.index');
}
return View::make('posts.edit')->with('post',$post);
}
public function update($id){
$input=array_except(Input::all(),'_method');
Post::find($id)->update($input);
return Redirect::route('posts.index');
}
public function destroy($id)
{
Post::find($id)->delete();
return Redirect::route('posts.index');
}