Laravel：使用来自多个模型的属性填充表单

Question

I am trying to build a form to edit the information of offices. This form is build using information coming from two models: Office and Address. Like you see in the image fields marked with 1 belongs to address model, the ones marked with 2 belongs to Offices

An Office has one Address

office.php

public function address()
{
    return $this->hasOne('App\Address');
}

An address belongs to an Office

address.php

public function office()
{
    return $this->belongsTo('App\Office');
}

Now, in order to populate the edit view I need to bind two models to a form!

I have tried this:

{!! Form::model($element, ['method'=>'PATCH', 'action'=> ['AdminofficeController@update', $element->slug ],'files'=>true]) !!} 

{!!Form::label('image', 'Upload a Featured Image') !!}
{!!Form::file('image', null, array('class' => 'form-control'))!!}

...here fields from office model...

{!! Form::label('street', 'Street:', array('class' => 'pt-3'))!!}
{!! Form::text($element->address->street, null, array('class'=>'form-control' )) !!}
 ... here other fields ...

{!!Form::submit('Edit Büro', array('class' => 'btn btn-success btn-block')) !!}
{!!Form::close() !!} 

But I get the following error:

Property [street] does not exist on this collection instance. (View: C:\laragon\www\domainesources\views\dashboard\bueros\edit.blade.php)

This line does not solve the problem

{!! Form::text($element->address->street, null, array('class'=>'form-control' )) !!}

I have var_dump te collection and indeed, it has an street property, it means the relation is working ok.

As far as I know I can't bind two models to one form (not in HTML)

How do I populate a form with properties coming from multiple models?

I would hate to make two forms one to edit Address and another for the name of the office.

Answer 1

This question is old but here's an answer that works for me.

Your first form line:

{!! Form::model($element, ['method'=>'PATCH', 'action'=> ['AdminofficeController@update', $element->slug ],'files'=>true]) !!} 

should be amended to:

{!! Form::model($building->toArray() + $address->toArray(), ['method'=>'PATCH', 'action'=> ['AdminofficeController@update', $element->slug ],'files'=>true]) !!} 

I'm not 100% certain that the ->toArray() is required but this does work for forms that I have with multiple models that I want to be auto-populated.

Note: the $building and $address variables would be whatever you have used in your code.