i want to find post by slug also in url ..
but the comments must be found by post_id
Controller
public function post($slug,$id)
{
$post = Post::where('slug',$slug)->first();
$comments = Comment::where('post_id',$id)->get();
return view('content.post',compact('post','comments'));
}
Route
Route::get('post/{slug}', 'PagesController#post')->name('post.show');
Route::get('post/{slug}', 'PagesController#post')->name('post.show');
public function post($slug)
{
$post = Post::where('slug',$slug)->first();
$comments = Comment::where('post_id',$post->id)->get();
return view('content.post',compact('post','comments'));
}
Here you go:
Get post_id from the $post itself.
public function post($slug){
$post = Post::where('slug',$slug)->first();
$comments = Comment::where('post_id',$post->id)->get();
...
}
You can use Route Model Binding to ensure that routes will find your model based on the provided key.
Your Post model will require that you add the following method:
public function getRouteKeyName()
{
return 'slug';
}
Then, in your routes, you can just refer the model directly, and binding will happen automatically:
public function post(App\Post $post)
{
$comments = Comment::where('post_id',$post->id)->get();
return view('content.post',compact('post','comments'));
}
This enables you to to use the following route:
Route::get('post/{post}', 'PagesController#post')->name('post.show');
Now, additionally, to ease up your reference of the comments, add them as relations to your Post model:
public function comments()
{
return $this->hasMany(Comment::class);
}
and your Comment model:
public function post()
{
return $this->belongsTo(Post::class);
}
This will allow you to shorten your controller method even more:
public function post(App\Post $post)
{
return view('content.post',compact('post'));
}
and in your Blade view do the following instead:
#foreach($post->comments as $comment)
From: {{ $comment->name }} blah blha
#endforeach
in web.php:
Route::get('post/{slug}', 'PagesController#post')->name('post.show');
in controller:
public function post($slug)
{
$post = Post::where('slug',$slug)->first();
$comments = Comment::where('post_id',$post->id)->get(); //use founded_post_id to find it's comments
return view('content.post',compact('post','comments'));
}
Related
I have a customer table which has a field called 'policy_id', where policy_id points to policy table. It is a null-able field, ie. Some customers may not have a policy.
I have a relationship code like this in Customer.php
public function policy() {
return $this->hasOne('App\Models\Policy', "id", "policy_id");
}
But when I issue a search request I am getting error like this:
Illuminate\Database\Eloquent\ModelNotFoundException: No query results for model [App\Models\Policy]
If I modify the function like this:
public function policy() {
if ($this->getAttribute('policy_id')) {
return $this->hasOne('App\Models\Policy', "id", "policy_id");
} else {
return null
}
}
But I am getting an error like this:
Call to a member function getRelationExistenceQuery() on null
Here is my search code:
$c = new Customer();
return Customer::doesntHave('policy')->orWhere(function (Builder $query) use ($req) {
$query->orWhereHas('policy', function (Builder $query) use ($req) {
$p = new Policy();
$query->where($req->only($p->getFillable()))
->orWhereBetween("policy_period_from", [$req->policy_period_start_from, $req->policy_period_start_to])
->orWhereBetween("policy_period_to", [$req->policy_period_end_from, $req->policy_period_end_to])
->orWhereBetween("payment_date", [$req->payment_date_from, $req->payment_date_to]);
});
})->where($req->only($c->getFillable()))->get();
Am I missing something or are there any other ways to do this?
PS: While debugging the above search code is returning successfully, but the exception happening from somewhere inside Laravel after the prepareResponse call.
Thanks in advance.
return $this->hasOne('App\ModelName', 'foreign_key', 'local_key');
Change the order, put the foreign_key policy_id in front of id
In your Customer Model, you need to use belongsTo method:
public function policy() {
return $this->belongsTo('App\Models\Policy', "policy_id", "id");
}
And In your Policy Model, use hasOne:
public function customer() {
return $this->hasOne('App\Models\Customer', "policy_id", "id");
}
First of all, you placed the wrong params.
$this->belongsTo('App\Models\Policy', "FK", "PK");
public function policy() {
return $this->belongsTo('App\Models\Policy','policy_id', 'id');
}
And for null value of policy_id you can use withDefault();
public function policy() {
return $this->belongsTo('App\Models\Policy','policy_id', 'id')->withDefault([
'name' => 'test'
]);;
}
there's a number of problems there but can you perhaps specify the namespace and the class of both your models - Customer and Policy.
By default, the models you create with php artisan make:model will use the \App namespace e.g. \App\Customer and \App\Policy.
Just double check that.
Also, with regards to the relationship, if the Laravel conventions have been followed you could just:
In the Customer model
public function policy() {
return $this->belongsTo(Policy::class);
}
In the Policy model
public function customer() {
return $this->hasOne(Customer::class);
}
of if a multiple customers can be under one policy
public function customers() {
return $this->hasMany(Customer::class);
}
Good luck
i would like to know how can i add extra column in laravel collection, return from database. for instance.
User Model
User->id
User->name
Reservation Model
Reservation->user_id
Reservation->id
now
$users = User::all();
$user_reservation = Reservation::all();
foreach ($users as $user)
{
foreach ($user_reservation as $ur)
{
if ($user->id == $ur->user_id)
{
//Add extra column in to the users model
}
}
}
Laravel has a something called $appends with Accessors. how to use it
Define $append in the model where you want to add custom collection. in my case User model
class User extends Model{
protected $appends = ['user_eservation'];
public function getUserReservations($id)
{
return User::where('id', $id)->first();
}
public function getUserReservationAttribute()
{
return $this->getUserReservations(Auth::user()->id);
}
}
and now you can call the custom attribute which is not available in the database , by calling the getUserReservatoin function.
for instance
$users = User::all();
$user_reservation = Reservation::all();
foreach ($users as $user)
{
foreach ($user_reservation as $ur)
{
if ($user->id == $ur->user_id)
{
$user->getUserReservations();
}
}
}
$user->push(['extra_column' => $value]);
4 and i have a form when submitted i want to validate its fields, what happened is when i submit the form this is what it gets
(1/1) FatalErrorException
Call to a member function all() on null
This is my code below
$validator = app('validator')->make($this->request->all(),[
'postTitle' => 'required',
'postContent' =>'required']);
In laravel 5.2 this validator works well but in laravel 5.4 it returns null
can someone help me figured this thing out?
Any help is muchly appreciated. TIA
this is my full code
<?php
namespace App\Repositories;
use App\Repositories\Contracts\addPostRepositoryInterface;
use Validator;
use Illuminate\Http\Request;
use DB;
use Session;
use Hash;
class addPostRepository implements addPostRepositoryInterface{
protected $request;
// Intialize request instance
public function __contruct(Request $request){
$this->request = $request;
}
public function addPosts(Request $request){
//validate posts
echo "test";
$validator = Validator::make($request->all(), [
'postTitle' => 'required',
'postContent' =>'required',
]);
//if validation fails return error response
if($validator->fails())
return redirect()->route('get.addPost')->withErrors($validator)->withInput();
try{
}catch(\Exception $e){
return redirect()->route('get.addPost')->withErrors(["error"=>"Could not add details! Please try again."])->withInput();
}
}
public function postCreate($screen){
switch($screen){
case 'add':
return $this->addPosts($screen);
break;
}
}
//getAddPost View
public function getAddPost(){
return view('addPost');
}
}
Seems an issue with the method injection (in the constructor) or something.
You may try creating the request object on the local(addPosts()) function.
Please try below alternative solution.
<?php
namespace App\Repositories;
use App\Repositories\Contracts\addPostRepositoryInterface;
use Validator;
use DB;
use Session;
use Hash;
class addPostRepository implements addPostRepositoryInterface{
public function addPosts(Request $request){
//validate posts
$reqeust = new \Illuminate\Http\Request;
$validator = Validator::make($request->all(), [
'postTitle' => 'required',
'postContent' =>'required',
]);
//if validation fails return error response
if($validator->fails())
return redirect()->route('get.addPost')->withErrors($validator)->withInput();
try{
}catch(\Exception $e){
return redirect()->route('get.addPost')->withErrors(["error"=>"Could not add details! Please try again."])->withInput();
}
}
public function postCreate($screen){
switch($screen){
case 'add':
return $this->addPosts($screen);
break;
}
}
//getAddPost View
public function getAddPost(){
return view('addPost');
}
// REST OF THE CODE GOES HERE...
}
Given the information you gave, I will demonstrate you how to validate a request properly in Laravel 5.4
public function store(Request $request)
{
$validator = Validator::make($request->all(), [
'postTitle' => 'required',
'postContent' =>'required',
]);
if ($validator->fails()) {
return redirect('your.view')
->withErrors($validator)
->withInput();
}
// Store the blog post...
}
This will successfully validate the request for you wherever need be. If the validation fails, you will be forwarded to your view with the according errors.
Make sure you use Validator; on top of your file.
For more information, you can read up on https://laravel.com/docs/5.4/validation
I have this Comment model with belongs to relationship.
class Comment extends Model
{
public function user()
{
return $this->belongsTo('App\User');
}
}
While in my controller:
public function store(Request $request)
{
$comment = $this->dispatch(
new StoreCommentCommand($request->body, Auth::user()->id, $request->post_id)
);
return $comment;
}
When I return the $comment I also want nested user object, how can I do that?
You need to use the with() on Builder object, whereas currently you are using on eloquent object. This will be your working code.
return Comment::with('user')->where('id', $comment->id)->first();
Just eager load it...
return $comment->with('user');
In case anyone stumbles upon this, you can just assign the user to the comment before returning it.
$comment->user = Auth::user()
return $comment
The with eager-loading function isn't needed here.
Trying to use __construct inside a controller to assign some variable but it keeps throwing errors. Hoping that someone can lead me in the right direction.
class Controller_Mobile extends Controller {
public function __construct()
{
parent::__construct();
$iphoneDetect = strpos($_SERVER['HTTP_USER_AGENT'],"iPhone");
$touchDetect = strpos($_SERVER['HTTP_USER_AGENT'],"iPod");
$blackberry = strpos ($_SERVER['HTTP_USER_AGENT'], 'blackberry');
$android = strpos ($_SERVER['HTTP_USER_AGENT'], 'android');
$iphoneDetect = true;
if ($iphoneDetect == true || $touchDetect == true)
{
$directory = "mobile/iphone";
}
else if($android == true)
{
$directory = "mobile/android";
}
}
public function action_index()
{
$this->request->response = 'I am mobile';
}
I actually just found the answer to the question and just thought i would pass it along. In Kohana 3 you use the before() and after() functions.
You have to use both request and response in construct.
public function __construct(Request $request, Response $response)
{
parent::__construct($request,$response);
// your code
}
If you want to use __construct() method, dont forget about Request variable:
public function __construct(Kohana_Request $request)
{
parent::__construct($request);
// your code
}
Thats why you are getting errors with your code.