I have got three tables Kudos, Kudoscategories, and specialpost. I need to get the data from those tables and check the post id using a where condition.
I have attached the database table screenshot here
I already tried this, but it's not getting any result.
$results = DB::table('kudos')
->select('kudos.description','kudoscategory.catname','kudoscategory.image','kudos.spid')
->join('kudoscategory', 'kudoscategory.id', '=', 'kudos.categoryid')
->where('kudos.spid', '=', $post_id)
->first();
return $results;
What I need to do is get the results using below where condition newsfeed_special_posts.main_post_id = kudos.spid
You must add another join with newsfeed_special_posts.
The query will be like,
$results = DB::table('kudos')
->select('kudos.description','kudoscategory.catname','kudoscategory.image','kudos.spid')
->join('kudoscategory', 'kudoscategory.id', '=', 'kudos.categoryid')
->join('newsfeed_special_posts', 'newsfeed_special_posts.main_post_id', '=', 'kudos.spid')
->where('kudos.spid', '=', $post_id)
->first();
return $results;
Though this is not a good practice for laravel. using laravel eloquent relationships will be more efficient for these results.
https://laravel.com/docs/5.8/eloquent-relationships
you can still do it this way. still efficient to avoid sql injection since you are getting all the record from the 3 tables. seeing your table above, its not properly normalised. anywaye try this.
$results = DB::table('kudos')
->leftjoin('kudoscategory', 'kudoscategory.id', '=', 'kudos.categoryid')
->leftjoin('newsfeed_special_posts', 'newsfeed_special_posts.id', '=', 'kudos.spid')
->where('kudos.spid', '=', $post_id)
->first();
return $results;
you can try this code
at first, create model Kudos,KudosCategory,NewsfeedSpecialPosts
Kudos Model
public function kudoscategory_dta()
{
return $this->belongsTo('App\Model\KudosCategory','categoryid');
}
public function newsfeed_special_posts_dta()
{
return $this->belongsTo('App\Model\NewsfeedSpecialPosts','spid','main_post_id ');
}
controller
Kudos::with('kudoscategory_dta','newsfeed_special_posts_dta')->first();
Related
I want to retrieve a collection of data, which is ordered by the start_date of the relation
Basically I want to achieve this, with Laravel Models (the code below works perfectly)
$posts = DB::table('posts')
->leftJoin(
'threads',
'posts.id',
'=',
'threads.postable_id'
)
->where('threads.postable_type', '=', 'App\Post')
->orderBy('threads.start_date')
->paginate($request->input('limit', 2));
So in this case, I'm fetching ALL Posts and those are ordered by the start_date of the thread relation.
Those are not my actual tables but this works perfectly!
Because I'm using https://laravel.com/docs/8.x/eloquent-resources this is not the ideal solution to retrieve sorted data.
So instead I want to use the orderBy clause somewhere here
$posts = Post::whereHas('thread', function ($query) {
$query->where('end_date', '>=', Carbon::now());
});
But I just cannot make this work. I've tried this
$posts = Post::whereHas('thread', function ($query) {
$query->where('end_date', '>=', Carbon::now())
->orderBy('start_date');
});
and I also appended this to the actual relation:
public function thread(): MorphOne
{
return $this->morphOne('App\Thread', 'postable')->orderBy('start_date');
}
If you look at your code:
$posts = Post::whereHas('thread', function ($query) {
$query->where('end_date', '>=', Carbon::now())
->orderBy('start_date');
});
the whereHas will only return Post associate with a thread which the function return true.
Try this:
$posts = Post::with('thread')->has('thread')->orderBy('thread.start_date')->get();
This will fetch all Post with Thread only if they have at least one Thread and then orderBy the start_date of the Thread.
You don't have to do the whereHas function because when you call ->with('thread') it'll use you this :
public function thread(): MorphOne
{
return $this->morphOne('App\Thread', 'postable')->orderBy('start_date');
}
whereHas doesnt retrieve the relationship.
If you need even more power, you may use the whereHas and orWhereHas methods to define additional query constraints on your has queries, such as inspecting the content of a comment: Laravel whereHas
Don't do :
$posts = Post::with('thread')->orderBy('thread.start_date');
If there is no thread on some post, post without thread will be fetch with value null for their key thread and you will have an unexpected result when you try to orderBy.
First of all I want to thank Elie Morin for his help but I found out that I definitely need to use joins for that task.
In my example, I wanted to order the main query (posts) by the relation's start_date
Doing what you suggested
$posts = Post::with('thread')->has('thread')->orderBy('thread.start_date')->get();
Would only order the thread by start_date and not the ENTIRE query.
Which is why I came up with something like this:
$posts = Post::has('thread')
->select('posts.id')
->leftJoin(
'thread',
'posts.id',
'=',
'thread.postable_id'
)
->where('thread.postable_type', '=', 'App\Post')
->where('thread.end_date', '>=', Carbon::now())
->orderBy('thread.start_date')
->with('thread');
return PostResource::collection($posts->paginate(2));
I have a eloquent query that I am running twice, but feel can be run once.
I'd want to return the values of the first where statement if exists otherwise check the second where statement which is the default in the query.
This is what I am currently doing:
$details = Telco::select('telcos.id AS telco_id', 'telcos.name AS telco_name')
->leftJoin('telco_prefixs', 'telco_prefixs.telco_id', '=', 'telcos.id')
->where('telco_prefixs.prefix', '=', $phone_number) // check if ndc exists
->first();
if ($details){
return $details;
}
return Telco::select('telcos.id AS telco_id', 'telcos.name AS telco_name')
->leftJoin('telco_prefixs', 'telco_prefixs.telco_id', '=', 'telcos.id')
->where('telcos.name', '=', 'Default') //default channel
->first();
I have a feeling this can be combined to something like below:
However, this fails as keeps executing the OrWhere clause.
Telco::select('telcos.id AS telco_id', 'telcos.name AS telco_name')
->leftJoin('telco_prefixs', 'telco_prefixs.telco_id', '=', 'telcos.id')
->where('telco_prefixs.prefix', '=', $phone_number) // if ndc exists
->Orwhere('telcos.name', '=', 'Default') //default channel
->first();
Someone help. Thanks
Try to add your where and or where condition as below.
Telco::select('telcos.id AS telco_id', 'telcos.name AS telco_name')
->leftJoin('telco_prefixs', 'telco_prefixs.telco_id', '=', 'telcos.id')
->where(function ($query) use($phone_number) {
$query->where('telco_prefixs.prefix', '=', $phone_number);
$query->Orwhere('telcos.name', '=', 'Default');
})->first();
I you want to use just eloquent a possible solution would be to have something like:
I suppose you have model called Telco and another one calle TelcoPrefix.
//Telco.php
//first we create a has many relationship with your telco_prefixs table.
public function telcoPrefixs(){
return $this->hasMany(TelcoPrefix::class);
}
Once you have that relationship you can use something similar to this code:
Telco::whereHas('telcoPrefixs',function($query, $phone_number){
return $query->where('prefix,'=',$phone_number);
})->select('id','name')->first();
This will compare the relationship and if it exists or has it will return your first record in one query.
Hope it helps at least to give a guide of what you can do.
I'm using Laravel 5.7. How do i rewrite below code as a single nested query?
I'm currently fetching the result using 2 database queries. I go through some of the answers in stackoverflow, but i still have doubts in nesting multiple tables
$connectedParts = DB::table('part_connections as c')
->join('parts_master as p', 'p.id', '=', 'c.part_number_id')
->where('c.part_number_id', $partId)
->where('p.id', $partId)
->pluck('connected_to');
$connectedComponents = DB::table('part_connections as pc')
->join('parts_master as pm', 'pm.id', '=', 'pc.connected_to')
->where('part_number_id',$partId)
->where('pm.part_type','1')
->whereIn('connected_to', $connectedParts)
->pluck('connected_to');
Any help would be greatly appreciated.
Set your relationship properly in your model first then try this query:
//PartConnection model - add for eager loading
public function master() {
return $this->belongsTo('PartMaster::class', 'connected_to', 'id');
}
$query = PartConnection::whereHas(‘master’, function($qry)) use ($partId) {
$qry->where(‘parts_master.id’, $partId);
$qry->where(‘parts_master.part_type’, 1);
});
$query->where(‘part_number_id’, $partId);
$connectedComponents = $query->get();
update
Try this then:
$connectedComponents = DB::table('part_connections as pc')
->join('parts_master as pm', function($join) {
$join->on('pc.connected_to', '=', 'pm.id');
$join->on('pc.part_number_id', '=', 'pm.id');
}) //updated this - removed ;
->where('part_number_id',$partId)
->where('pm.part_type','1')
->get();
I've been trying to solve this for quite a while now. I want to join these two scopes from my Match Model:
public function scopeMainMatches($query)
{
return $query->where('type', 'main');
}
public function scopeDotaMatches($query)
{
return $query->join('leagues', function ($join) {
$join->on('matches.league_id', '=', 'leagues.id')
->select('matches.*')
->where('leagues.type', '=', 'dota2')
->where('matches.type', '=', 'main');
});
}
so basically, when I put in into join eloquent relationship it will be the same like this:
$query = DB::table('matches')
->join('leagues', 'leagues.id', '=', 'matches.league_id')
->select('matches.*')
->where('leagues.type', '=', 'dota2')
->get();
it works fine during the terminal check. but I need to connect 2 scopes for the Controller which looks like this:
$_matches = \App\Match::mainMatches()
->get()
->load('teamA', 'teamB')
->sortByDesc('schedule');
so when I try to connect mainMatches and dotaMatches, it doesn't show up on the matches. although when i run php artisan tinker, it returns the correct output, but it won't show up on the matches table.
$_matches = \App\Match::mainMatches()
->dotaMatches()
->get()
->load('teamA', 'teamB')
->sortByDesc('schedule');
any Ideas how to work on this? TYIA!
I've managed to join two tables in just one scope here is the code:
public function scopeMainMatches($query) {
return $query->join('leagues','leagues.id','=','matches.league_id')->select('matches.*')->where('matches.type', 'main');
}
I have the following relationship functions in my Job model:
public function resourceTypes(){
return $this->belongsToMany('ResourceType', 'job_requests');
}
public function resources(){
return $this->belongsToMany('Resource', 'jobs_resources')->withPivot('flow_type', 'resource_type_id');
}
I am able to get an object with data from both of the above relationships using:
$job = Job::findorfail($projectId);
$result = $job->with('resources.resourceTypes')->get();
I would like to put a where clause on the jobs_resources pivot table - specifically on the column flow_type.
How would I do this?
Try something like this:
$job = Job::with('resources' => function($q) {
$q->with('resourceTypes')->where('flow_type',2);
})->findorfail($projectId);
In above you will get only those resources with flow_type = 2
I ended up using the following statement:
Job::with(['resources' => function ($query){
$query->wherePivot('flow_type', '=', '1' );
}, 'resources.resourceTypes'])->where('id', $projectId)->firstOrFail();
$result = DB::table('job')
->join('job_resources', 'job.id', '=', 'job_resources.job_id')
->join('job_requests', 'job_resources.request_id', '=', 'job_requests.id')
->where('job_resources.flow_type', '=', CONDITION)
->get();
Your table data is not clear from your input, but this method (query builder) should work