My table looks like below,
donation_requests
---------------------------------------------------------------
| id name donation_type_id donation_request_type_id
|--------------------------------------------------------------
| 1 xyz 1 3
| 2 pqr 3 2
| 3 abc 3 1
| 4 klm 4 1
donation_types
------------------------
| id name
-----------------------
| 1 jakat
| 2 sadka
| 3 lillah
| 4 fitra
donation_request_types
------------------------
| id name
-----------------------
| 1 widow
| 2 masjid
| 3 madresha
i want donation_request data with donation_types name and donation_request_types name
In my DonationRequest model code is as below
public function donation_types()
{
return $this->belongsTo('App\DonationType','id','donation_type_id');
}
public function donation_request_types()
{
return $this->belongsTo('App\DonationRequestType','id','donation_request_type_id');
}
but in first two row i get proper result but for third row has same donation_type_id as 3 so it give blank and same as in donation_request_type_id
public function donation_types()
{
return $this->belongsTo('App\DonationType');
}
public function donation_request_types()
{
return $this->belongsTo('App\DonationRequestType');
}
As per my above question relationship is working fine, and it has issue in laravel tinker. While testing in postman i found perfect result, but in tinker there will be some issue. Update tinker but still have same problem.
Related
I am currently trying to make a relation between 3 tables.
post
id
name
category
id
name
post_category
id
post_id
category_id
Database
post
| 1 | post1 |
| 2 | post2 |
| 3 | post3 |
category
| 1 | cat1 |
| 2 | cat2 |
| 3 | cat3 |
post_category
| 1 | 1 | 1 |
| 2 | 2 | 1 |
| 3 | 3 | 2 |
| 3 | 2 | 2 |
| 3 | 1 | 3 |
Model Post.php
public function getCategory()
{
return $this->belongsToMany(Category::class, 'post_category');
}
PostController.php
$data = Post::with('getCategory')->get();
It returns correct post list.
Now i want to filter the post by category. I try, but it not working
$categoryId = [1,2];
$data = Post::with('getCategory')->whereHas('category', function ($query) use ($categoryId) {
$query->whereIn('id', $categoryId);
})->orderBy('id','DESC')->get();
please help me
use Laravel 5.4
apparently everything is fine!
One suggestion is to add two more parameters to the belongsToMany method, like:
public function getCategory()
{
return $this->belongsToMany(Category::class, 'post_category', 'post_id', 'category_id');
}
https://laravel.com/api/7.x/Illuminate/Database/Eloquent/Concerns/HasRelationships.html#method_belongsToMany
You should rename your getCategory() function to simply category(). That makes the relation names much more straightforward and probably fixes your issue.
THEN, you should be able to call whereHas('category', ...).
If it still does not work, simply chain a ->toSql() to any of your queries and debug the actual query that way.
I have 3 table's:
course table:
id | course
---|-----------
1 | Laravel
---|-----------
2 | PHP
---|-----------
3 | JS
subject table:
id | subject
---|-----------
1 | subject 1
---|-----------
2 | subject 2
---|-----------
3 | subject 3
course_subject (pivot) table:
id | course_id | subject_id
---|-----------|------
1 | 1 1
---|-----------|------
2 | 1 | 2
---|-----------|------
3 | 2 | 3
Course.php
public function subjects()
{
return $this->belongsToMany('App\Subject');
}
Subject.php
public function courses()
{
return $this->belongsToMany('App\Course');
}
I want to make a dependable dropdown in my Laravel application:
when I will select a course from select box another select box will get the subject name.
i got the subject id but not subject name. How can i do this?
I have four tables
jobposts:
id | user_id | cat_id | job_title
1 | 1 | 1 | job 1
2 | 1 | 2 | job 2
3 | 2 | 3 | job 3
4 | 1 | 3 | job 4
categorymasters:
id | category_name
1 | cat1
2 | cat2
3 | cat3
4 | cat4
lastsubcategoryselectedbycompanies:
id | jobposts_id | lastsubcategorymasters_id
1 | 1 | 1
2 | 1 | 2
3 | 2 | 3
4 | 1 | 3
lastsubcategorymasters:
id | LastSubCategoryName
1 | lastsubcat1
2 | lastsubcat2
3 | lastsubcat3
4 | lastsubcat4
jobposts have unique rows.
lastsubcategoryselectedbycompanies is a mapping of jobposts and lastsubcategorymasters.
Now assume some user is logged in with their credentials (EX: take user_id 1 in jobposts). Now I need to show LastSubCategoryName in a comma separated list from the lastsubcategorymasters table, grouped by the jobposts, lastsubcategoryselectedbycompanies and lastsubcategorymasters tables.
allpostedjob.blade.php is:
#foreach($jobposteddetails as $jobposteddetail)
<tr>
<td>{{ $jobposteddetail->job_title }}</td>
</tr>
#endforeach
cotroller is:
public function index()
{
$user = Auth::user();
$jobposteddetails = jobpost::with('categorymaster')->where('user_id', '=', $user->id)->get();
return view('jobprovider.allpostedjob', compact('user','jobposteddetails'));
}
jobpost.php model is:
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class jobpost extends Model
{
function categorymaster()
{
return $this->belongsTo(categorymaster::class, 'cat_id');
}
}
It is working proper.
But I also need to show LastSubCategoryName grouped by the tables jobposts, lastsubcategoryselectedbycompanies and lastsubcategorymasters.
function lastsubcategory()
{
return $this->belongsTo(lastsubcategoryselectedbycompanies::class);
}
It is not working. How can I fetch my result?
I am not very skilled at applying complex queries with eloquent, I prefer to use DB query builder with the join method
https://laravel.com/docs/5.8/queries
Given the following table
gallery
+----+---------------+--------------+---------+
| id | gallery_title | viewcount | user_id |
+----+---------------+--------------+---------+
| 1 | Animals | 10 | 1 |
| 2 | Cars | 5 | 1 |
| 3 | Houses | 2 | 2 |
+----+---------------+--------------+---------+
user
+----+----------+
| id | username |
+----+----------+
| 1 | Bob |
| 2 | James |
+----+----------+
and the following classes
class Gallery extends Model
....
public function user()
{
return $this->belongsTo('App\User');
}
and
class User extends Model
....
public function galleries()
{
return $this->hasMany('App\Gallery');
}
calling $galleryCollections= Auth::user()->galleries; returns an array of collections in which I can iterate through
foreach ($galleryCollections as $galleryCollection)
{
$viewcount += $galleryCollection->viewcount;
}
print $viewcount; #returns 15
and so far everything works as expected, correctly up until this point.
However if I accidentally called $galleryCollection->sum('viewcount'), which is the last value from the iteration, the returned value is 17, as it's simply running the following SQL select sum('viewcount') as aggregate from 'gallery'.
I'm struggling to understand what exactly what is happening here. It's almost as if it's calling the 'sum()' method on the gallery class itself without passing in any 'where' values. I'd at least expect it to call the sum() method on the Collection, but instead it's going back to the database.
Is it because my Gallery class does not implement a 'sum()' method, and therefore it uses the Parent Model class and ignores the Gallery class?
If you want to count through sql, then:
Auth::user()->galleries()->sum('viewCount');
But, Auth::user()->galleries->sum('viewCount'); will sum on the collection Auth::user()->galleries.
Auth::user()->galleries() is a queryBuilder whereas Auth::user()->galleries is a collection of galleries of that user.
I'm using Laravel 5 and Eloquent, I have 3 tables setup:
photos
+----+---------------+------------------+
| id | photo_name | photo_location |
+----+---------------+------------------+
| 1 | kittens.jpg | C:\kittens.jpg |
| 2 | puppies.jpg | C:\puppies.jpg |
| 3 | airplanes.jpg | C:\airplanes.jpg |
| 4 | trains.jpg | C:\trains.jpg |
+----+---------------+------------------+
photo_set (pivot table)
+------------+----------+
| set_id | photo_id |
+------------+----------+
| 1 | 1 |
| 1 | 2 |
| 2 | 3 |
| 2 | 4 |
+------------+----------+
sets
+----+----------------+
| id | description |
+----+----------------+
| 1 | cute animals |
| 2 | transportation |
+----+----------------+
I created a belongsToMany relationship in my photos and sets models to link these two together.
class Photo extends Model {
public function sets()
{
return $this->belongsToMany('App\Set');
}
}
and
class Set extends Model {
public function photos()
{
return $this->belongsToMany('App\Photo');
}
}
However I'm trying to reference the $Sets->photos() model function in my controller, so that given a set of id=1, I can return the photo_location value for each row [C:\kittens.jpg,C:\puppies.jpg], but I don't know how to access it..
Also, I can "sort of" access this information in the view with:
#foreach($sets as $set)
{{$set->images}}
#endforeach
but it looks like it only iterates through once and returns a json (?) of the necessary information, though I'm not sure how to parse that to regular HTML either.
So in short, I'm having trouble accessing this data (photo_location) from both the controller and the view
Use Collection::lists()
$locations = Set::find(1)->photos->lists('photo_location');
It will return an array ['C:\kittens.jpg', 'C:\puppies.jpg']
http://laravel.com/api/4.2/Illuminate/Database/Eloquent/Collection.html#method_lists
In your controller try this :
$result = PhotoSet::where('set_id', $set_id)
->with('sets')
->with('photos')
->get();
$photo_location = $result->photos->photo_location;
here PhotoSet is the model for photo_set table, because it is a pivot table we will be able to access both sets and photos table from it.