Getting ID from url and using it in CRUD controller laravel - laravel

I need to add orders to existing customers. From my customers.show view I use the following to visit the order form.
href="{{action('OrderController#create', $customer['id'])}}
The link of the page looks like:
/orders/create?2f10f8a0-30b9-11e8-8711-dd477b141226
I've been using the following route::get to no avail to be able to use this ID in my resource controller for Orders
Route::get('orders/create/{id}', 'OrderController#create');
Basically need to be able to to something along the lines of below to be able to show customer details while displaying the create order form as well but getting stuck on best way to pass the id through for the current customer
public function create(){
$customer = Customer::find($id)
return view('orders.create', compact('customer'));
}

With Laravel, you just need to add the parameters you specified in the route as function parameters, like below:
public function create($id){
$customer = Customer::find($id)
return view('orders.create', compact('customer'));
}

You are not passing the $id argument in the create function.
Change it to:
public function create( $id ){
$customer = Customer::find($id)
return view('orders.create', compact('customer'));
}

Related

How can add additional Attribute in my JSON response with dynamic value in laravel

In my app i have a Posts and a Reacts table both are connected with relationship.
In App user can react to a post(like or dislike) and for retrieve this i'm using this function :
public function feed()
{
$posts=Post::with('user')
->with('reacts')
->withCount('comments')
->orderBy('created_at', 'DESC')
->get();
return response()->json(["posts" => $posts]);
}
the response is:
i want to add one more field in Posts Object for isUserLiked and if the current authenticated user liked the post then value will be true or false for him something like this:
i can add a additional field but how can i set the value dynamically for that
this is what i am doing in my Post Model:
protected $appends = ['isUserLiked'];
public function getIsUserLikedAttribute($id)
{
$react=React::where('user_id',auth()->user()->id)->where('post_id',$id)->exists();
return $react;
}
this is returning false because i don't know any way to pass the arguments(Post id).
is there any better way i can get the desired response? Thanks!
public function getIsUserLikedAttribute($id)
{
return React::where('user_id',auth()->user()->id)->where('post_id',$this->id)->exists();
}
In your user model:
public function reacts(){
return $this->hasMany(React::class);
}
public function scopeReactOnPost($query, $post_id){
return $this->reacts()->where(function($query) use ($post_id){
$query->where('post_id',$post_id);
});
}
and in your controller:
$user->reactOnPost($post_id)->first();
or
$user->reactOnPost($post_id)->get()->count();
Will let you know if user had any reaction on the specified post.
and for adding this to your json output you can artisan make a resource for your post model. Laravel Resources

Pass specific id to model and take data from database using codeigniter?

My controller method like below
public function index($book_id) {
print_r($book_id);
}
I will get the id from view. View like below
I need to get specific row according id on model how can I do that if I use query in controller its not working
If I use like below in controller it gives something else as result
public function index($book_id) {
print_r($book_id);
$this->db->select('*');
$this->db->from('books')->where('book_id', $book_id);
$query = $this->db->get();
print_r($query);
}
but if I use same query in model with hard coded id for testing it gives the expected out put
Please help me with this
You don't need to include "/index" in anchor tag href as controller default method will be index if found. And "print_r($book_id)" should be "echo $book_id" as $book_id is variable not array.
Please try this code (either in model/controller):
$query = $this->db->get_where('books', array('book_id' => $book_id));
$result = $query->row_array();
print_r($result);

How can fill the user id field with auth user on creation of resource?

I'm sure there must be a very simple way to do this - I would like to fill the user_id field on my resource with the authenticated user's id whenever a new instance of the resource is created.
In the store() method of my Resource model I have:
public function store(Request $request)
{
$input = $request->all();
$resource = Resource::create($input);
$resource->user_id = Auth::user()->id;
return $resource;
return 'Resource added.';
}
This works through a post API route, however whenever I add a new resource instance through Nova dashboard, it does not add the Auth user id. I'm guessing this because Nova doesn't use that Resource controller that I have set out?
I would appreciate suggestions!
Working on the assumption that you have relationship method User::resources() the following should work:
return $request->user()->resources()->create($request->all());
The way you have it doesn't work because you didn't save the resource after associating user with it.
I haven't used Nova yet, but since its also laravel and most likely Eloquent ORM I can tell the following.
In these two lines you've set the user_id but you haven't persisted the change:
$resource->user_id = Auth::user()->id;
return $resource;
You should add this line to save the changes you've done:
$resource->save();
As an alternative you could add the value already into your $input array:
$input = $request->all();
$input["user_id"] = Auth::user()->id;
$resource = Resource::create($input);
I just created an ResourceObserver. Saved the Auth()->user->id with the created method.
Registered the ResourceObserver to AppServiceProvider and NovaServiceProvider.
https://laravel.com/docs/5.7/eloquent#observers
https://nova.laravel.com/docs/1.0/resources/#resource-events
In the model class, add function like this:
public function save(array $options = array())
{
$this->user_id = auth()->id();
parent::save($options);
}
Just be carefull if you tend to use save in any other scenario so you don't overwrite existing user_id.

Creating a URL with a FK

I'm trying to create a url which reads www.localhost/forum/{slug}/thread={id} but im encountering problems. The {id} part is coming back as that is the thread id but the {slug} part i'm trying to retrieve through a foriegn key and get the issue.
Call to a member function forums() on null
here are my tables
Forum: id, name, slug, timestamps
Thread: id, name, forum_id, user_id
here is my relation on my thread model
public function forums(){
return $this->belongsTo('App\Forum');
}
and here is my code on my ThreadController
public function show($id, $slug)
{
//
$thread = Thread::find($id);
$thread->forums()->slug = $slug;
return view('forum.thread')->withThread($thread);
}
Any ideas on how i get the Forum's slug into the URL?
Because $thread = Thread::find($id) Didnt get any thread. You can can use findOrFiail function, or check does thread exist, and after that call forums().
Maybe try $thread->forums()->setAttribute('slug', $slug)
So it looks like id is not a route parameter.
your controller method should be
public function show($slug)
{
$thread = Thread::find(request()->input('id'));
$thread->forums()->slug = $slug;
return view('forum.thread')->withThread($thread);
}
either that or change your route

codeigniter pass variable from controller to model

simple issue I presume.
My controller is getting the if to display from the url using $this->uri->segment(3). This will always be a single value. I am putting this in an array to pass to the model with:
$customerid = array(
'id' => $this->uri->segment(3)
);
The controller syntax is below:
function confirm_delete_customer()
{
$data['title']="Confirm Customer Deletion";
$customerid=array(
'id'=>$this->uri->segment(3)
);
//query model to get data results for form
$data=array();
if($query=$this->model_master_data->get_customer_records_to_delete()){
$data['records']=$query;
$this->load->view("master_data/view_master_data_header",$data);
$this->load->view("master_data/view_master_data_nav");
$this->load->view("master_data/view_content_master_data_confirm_customer_deletion",$data);
$this->load->view("master_data/view_master_data_footer");
}
I am then trying to access this array value and pass it to my model to process. If I hard code the array into the model it works as per below syntax:
Model - Manual Syntax is:
function get_customer_records_to_delete()
{
$query = $this->db->get_where('customers', array('id'=>43));
return $query->result();
}
if I try replace this with the array from my controller it fails with error:
Undefined variable: customerid
idea of model that I want to get working:
function get_customer_records_to_delete()
{
$query = $this->db->get_where('customers', $customerid);
return $query->result();
}
I have a feeling it is something small. however is this the best way to get a single record from the database in order to output to a view?
Thanks in advance for the assistance.
The best way to do that is:
function confirm_delete_customer()
{
$data=array();
$data['title']="Confirm Customer Deletion";
$customerId = $this->uri->segment(3);
//Prevent SQL injections
if(!is_numeric($customerId) || empty($customerId)) {
show_error("Bad Request");
}
$query = $this->model_master_data->get_customer_records_to_delete($customerId);
if ($query){
$data['records']=$query;
$this->load->view("master_data/view_master_data_header",$data);
$this->load->view("master_data/view_master_data_nav");
$this->load->view("master_data/view_content_master_data_confirm_customer_deletion",$data);
$this->load->view("master_data/view_master_data_footer");
}
}
and then you can simply call:
function get_customer_records_to_delete($customerId)
{
$query = $this->db->get_where('customers', array('id'=>$customerId));
return $query->result();
}
at your model.
You need to pass the value as an argument to the function so it can access it.
Ex:
get_customer_records_to_delete($customerid)
{
// now $customerid is accessible
$query = ....;
return $……;
}
You should heavily rely on function parameters. Grab the customer id from the controller and send it to the model. Moreover, you can use row() to get a single result from the database.
Controller:
function confirm_delete_customer(){
$data['title']="Confirm Customer Deletion";
$customerid=$this->uri->segment(3);
//query model to get data results for form
$data=array();
if($query=$this->model_master_data->get_customer_records_to_delete( $customerid)) //you are sending customer id as a parameter here
$data['records']=$query;
$this->load->view("master_data/view_master_data_header",$data);
$this->load->view("master_data/view_master_data_nav");
$this->load->view("master_data/view_content_master_data_confirm_customer_deletion",$data);
$this->load->view("master_data/view_master_data_footer");
}}
Model
function get_customer_records_to_delete($customerid)
{
$query = $this->db->get_where('customers', array("id"=>$customerid)); //you are using the customer id sent from the controller here
return $query->row(); //this will return a single row
}
Old thread but the answer is to declare the variable as "public" in the controller (i.e. public $customerid;), in which case it'll be available to your model. In some cases it's probably safer to explicitly pass as an argument. However, when you have several variables, it's useful to have the option to declare them instead.

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