Is it possible to use paginate() with the select() method? Using the code below I get the error:
Call to a member function paginate() on a non-object
$query = 'SELECT * FROM items';
$results = DB::select($query)->paginate(10);
I know the following code works with paginate() with just the table() method:
$results = DB::table('plans_shared')->paginate(10);
It seems much easier for me to use the select() since I have many conditional AND/WHERE clauses
select() method returns array so paginate() cannot be called on it. You can only try to use \Paginator::make(DB::select($query)) if you like
If you have an array and want to paginate it use Paginate::make() Paginate Laravel 4.2
Ex:
$pages = Paginate::make(DB::select($query), 10);
$items = DB::table('team')
->selectRaw('SELECT *,earth_distance(ll_to_earth(team.lat, team.lng), ll_to_earth(23.1215939329,113.3096030895)) AS distance')
->whereRaw('earth_box(ll_to_earth(23.1215939329,113.3096030895),1000) #> ll_to_earth(team.lat, team.lng)')
->paginate(10);
Related
Hi I am trying to do this query
$collections = Collection::groupBy(['branch_office_id', DB::raw('MONTH(`created_at`)')])->sum('gross_amount')->paginate(10);
But it displays this error:
Call to a member function paginate() on string
So I wonder how can I do thta without to lose the paginate function ? Thanks.
You can sum on each group of the result by mapping the result of the groupBy and do your summation in the map function. In below code, I suppose you have an array in the map and tried to get the summation of the key.
$collections = Collection::groupBy(['branch_office_id', DB::raw('MONTH(`created_at`)')])
->map(function($item){
return array_sum(array_filter($item,function($k=>$v){
return $k=='gross_amount' ? $v : null;
}));
})
->paginate(10);
In my controller I have this query
$query = Market::whereHas('cities', function($query) use ($city) {
$query->where('id', $city);
})->get();
Then I want to make a few operations with this collection and remove my subquerys from the main object
$return['highlighted'] = $markets->where('highlighted', true);
$markets = $markets->diff($return['highlighted']);
The problem is when I try to sort it by created_at
$return['latest'] = $markets->sortByDesc('created_at')->take(4);
$markets = $markets->diff($return['latest']);
It just won't work, keeps returning the first 4 objects order by id, I've tried parsing created_at inside a callback function with Carbon::parse() and strtotime with no results.
I'm avoiding at all cost to make 2 different database querys since the original $markets has all the data that I need.
Any suggestion?
Thanks
I think your problem is you try to sort and take in one-go and also missing a small thing when you try to access the values of the collection.
Try below approach:
$return['latest'] = $markets->sortByDesc('created_at');
$markets = $markets->diff($return['latest']->values()->take(4));
Or you may need to do it like:
$return['latest'] = $markets->sortByDesc('created_at');
$return['latest'] = $return['latest']->values()->take(4);
$markets = $markets->diff($return['latest']->all());
I want to convert this code in laravel.
SELECT MAX(date_start) AS DateStart,MIN(date_end) AS DateEnd FROM DBTest
And I try this code
$data = DB::table('DBTest')
->select(max('date_start'), min('date_end')))
->get();
Return Error: max(): When only one parameter is given, it must be an array
I am using laravel 5.2, and SQLyog as database
I am confuse in syntax please help me
You can't use functions in select statement, but you can use raw SQL :
$data = DB::table('DBTest')
->select(\DB::raw('MIN(date_start) AS DateStart, MAX(date_end) AS DateEnd'));
->get();
You can do it like this:
For the max start date:
max = DB::table('DBTest')->select('date_start')->orderBy('date_start', 'desc')->first();
For min end date:
min = DB::table('DBTest')->select('date_end')->orderBy('date_end', 'asc')->first();
You have to use something called selectRaw method in Laravel in order to achieve this result. Chaining method like ->max('columnA')->min('columnB') will not work. So, here is the solution:
$data = DB::table('DBTest')
->selectRaw('MAX(date_start) AS DateStart, MIN(date_end) AS DateEnd')->get();
Try MIN() and MAX() functions in the sql query.
$data = DB::table('DBTest')
->select(\DB::raw('MIN(date_start) AS startDate, MAX(date_end) AS endDate'));
->get();
I'm working on laravel array serialize. Below is serialize in controller.
public function CreateSave(CreateTestTopicRequest $request){
...code..
$testtopic->class_room_id = $request->classroom;
$testtopic->roomno = serialize($request->roomno);
...code..
}
Then, roomno will be saved to database like.
a:2:{i:0;s:1:"1";i:1;s:1:"2";}
I would like to get result. For example class_room_id = 1 and roomno only contain in roomno array. I may use command to get all as below.
$testtopics = TestTopic::where('class_room_id',1)->get();
But, I do not know to get record only class_room_id = 1 and roomno contain in array. Any advice or guidance on this would be greatly appreciated, Thanks
You can use like search in json fields
TestTopic::where('class_room_id',1)->where('roomno', 'like', '%"id": 1%')->first()
When checking for an array of values the whereIn method can be used:
$roomno = 'a:2:{i:0;s:1:"1";i:1;s:1:"2";}';
$testtopics = TestTopic::where('class_room_id',1)
->whereIn('roomno', unserialize($roomno))
->get();
Multiple where statements can be combined by passing an array:
$roomno = 'a:2:{i:0;s:1:"1";i:1;s:1:"2";}';
$users = TestTopic::where([
['class_room_id', '=', '1'],
['roomno', '=', $roomno],
])->get();
This is the native sql:
$sql = "Select count(name) from users Where email = 't#t.com' and user_id = 10";
I have this laravel code:
$checker = Customer::whereEmailAndUserId("t#t.com",10)->count("name");
Is this a correct way to do it in laravel?
You have to use where helper function and pass an array of checks. For example in your code it will be:
$checker = Customer::where([
['email', '=', 't#t.com'],
['user_id' '=', '10']
])->count();
Note: Please use the appropriate column name as it in table.
Assuming Customer model represents table users, you'll get query with eloquent like this:
Customer::where('email', 't#t.com')->where('user_id', 10)->select(\DB::raw('count(name)'))->get();
The option you are trying is incorrect
here is the right option
$users = \App\Customer::where('email','t#t.com')
->where('user_id',10)
->count()
Explanation of above code
App\Customer is the Model class and I am trying to read records where email = 't#t.com you can use various comparison operators like <,> and so on and you can also use the same function to for string pattern matching also
Eg.
$users = \App\Customer::where('email','%t.com')
->where('user_id',10)
->count()
You can use the same where function for Null Value test also
Eg.
$users = \App\Customer::where('email','=', null)
->where('user_id',10)
->count()
The above where clause will be converted to is null test of the SQL
You can read more here