SELECT user_sessions.os, COUNT(*) FROM user_sessions
JOIN (SELECT MIN(created_at) AS MinCreatedAt, user_id FROM user_sessions
GROUP BY user_id) AS us2
ON (user_sessions.created_at = us2.MinCreatedAt
AND user_sessions.user_id = us2.user_id
GROUP BY user_sessions.os
This is a raw SQL query which I tried to convert in Eloquent but failed. My trial code is...
$q1 = self::select(DB::raw('MIN(created_at) as MinCreatedAt, user_id'))->groupBy('user_id');
$q2 = self::select(DB::raw('user_sessions.os, count(*)'));
$users = self::
select($q2)->joinSub($q1, 'us2', function ($join) {
$join->on('user_sessions.created_at = us2.MinCreatedAt AND user_sessions.user_id = us2.user_id ');
})->get();
Error
stripos() expects parameter 1 to be string object given
try this one.
$joinQuery = "(".DB::table('user_sessions')
->selectRaw('MIN(created_at) AS MinCreatedAt, user_id')
->groupBy('user_id')->toSql().") as us2" ;
$users = DB::table('user_sessions')
->selectRaw("user_sessions.os, COUNT(*)")
->join(DB::raw($joinQuery), function ($join) {
$join->on('user_sessions.created_at', '=', 'us2.MinCreatedAt')->on('user_sessions.user_id', '=', 'us2.user_id');
})
->groupBy('user_sessions.os');
Update
$q1 = self::select(DB::raw('MIN(created_at) as MinCreatedAt, user_id'))->groupBy('user_id');
$q2 = self::select(DB::raw('user_sessions.os, count(*)'));
$users = $q2->joinSub($q1, 'us2', function ($join) {
$join->on('user_sessions.created_at = us2.MinCreatedAt AND user_sessions.user_id = us2.user_id ');
})->groupBy('user_sessions.os')->get();
Related
Can anyone help me out to convert this SQL to query builder!
SELECT topwords.*,
mw.word AS my_word
FROM topwords
LEFT JOIN (SELECT DISTINCT words.word
FROM definition_word
JOIN words
ON words.id = definition_word.word_id
WHERE definition_word.user_id = $user) AS mw
ON topwords.word = mw.word
I have a problem with how to use a subquery in leftjoin!
I tried something like this but it has error!
See error as image
DB::table('topwords')
->leftJoin(DB::raw("SELECT DISTINCT
words.word
FROM definition_word
JOIN words ON words.id = definition_word.word_id
WHERE definition_word.user_id = $user as mw"),"topwords.word", "=", "mw.word" )
->select(
"topwords.*",
"mw.word AS my_word"
)->orderBy('id','desc')->paginate(15);
you can use Join Sub query official document subquery-joins
$mw = DB::table('words')
->select('DISTINCT words.word')
->join('definition_word', function($join) use ($user)
{
$join->on('wordss.id', '=', 'definition_word.word_id')
->where('definition_word.user_id', $user);
});
$topwords = DB::table('topwords')
->joinSub($mw, 'mw',function ($join) {
$join->on('topwords.word', '=', 'mw.word');
})
->select('topwords.*','mw.word AS my_word')
->orderBy('id','desc')
->paginate(15);
You have this error because of paginate and aggregation
Try to make custom pagination, using LengthAwarePaginator
Here is example: Laracast
So you need to make something like this:
$query = DB::table('topwords')
->leftJoin(DB::raw("SELECT DISTINCT
words.word
FROM definition_word
JOIN words ON words.id = definition_word.word_id
WHERE definition_word.user_id = $user as mw"),"topwords.word", "=", "mw.word" )
->select(
"topwords.*",
"mw.word AS my_word"
);
$paginator = new LengthAwarePaginator($query->get(), $query->count(), $request->input('per_page', 15), $request->input('page', 1));
And then you can use it in the collection
I have a dB query where I would like to groupBy() only when conditions are met without using union because of pagination.
Unfortunately groupBy() seems to only work when called on the entire query outside of the loop.
This was made for dynamic filtering from $filterArr. Depending on the array I need to select from different columns of the table.
When the $key=='pattern' I would need the distinct results from its column.
the query looks something like this
select `col_1`, `col_2`, `col_3`
from `mytable`
where (`color` LIKE ? or `pattern` LIKE ? or `style` LIKE ?)
group by `col_2` //<< i need this only for 'pattern' above and not the entire query
Heres the model:
// $filterArr example
// Array ( [color] => grey [pattern] => stripe )
$query = DB::table('mytable');
$query = $query->select(array('col_1', 'col_2', 'col_3'), DB::raw('count(*) as total'));
$query = $query->where(function($query) use ($filterArr){
$ii = 0;
foreach ($filterArr as $key => $value) {
if ($key=='color'){
$column = 'color';
}else if ($key=='style'){
$column = 'style';
}else if ($key=='pattern'){
$column = 'pattern';
$query = $query->groupBy('col_2'); // << !! does not work
}
if($ii==0){
$query = $query->where($column, 'LIKE', '%'.$value.'%');
}
else{
$query = $query->orWhere($column, 'LIKE', '%'.$value.'%');
}
$ii++;
}
});
$query = $query->orderBy('col_2', 'asc')->simplePaginate(30);
I think you can simplify your code a bit:
$query = DB::table('mytable');
$query = $query->select(array('col_1', 'col_2', 'col_3'), DB::raw('count(*) as total'));
$query = $query->where(
collect($filterArr)
->only(['color','style','pattern'])
->map(function ($value, $key) {
return [ $key, 'like', '%'.$value.'%', 'OR' ];
})->all()
)->when(array_key_exists('pattern', $filterArr), function ($query) {
return $query->groupBy('col_2');
});
$query = $query->orderBy('col_2', 'asc')->simplePaginate(30);
I'm having great difficulty in trying to convert the following query into an Eloquent one.
SELECT Sum(t.amount) AS amount,
m.name
FROM transactionsv2 t
JOIN channels c
ON t.entityid = c.uuid
JOIN merchants m
ON c.sender = m.uuid
WHERE t.paymenttype = 'DB'
AND t.status = 1
AND t.processing_time >= '2019-01-01'
AND t.processing_time < '2019-01-21'
GROUP BY m.name;
This is what I have but the result set is not right...
public function getTransactionsVolumeReport()
{
$report = Transaction::select(DB::raw('sum(amount) as amount, entityId'))
->where('paymentType', '=', 'DB')
->where('status', 1)
->where('processing_time', '>=', '2019-01-01 00:00:00')
->where('processing_time', '<=', '2019-01-21 23:59:59')
->with(['channel' => function ($q) {
$q->select('uuid', 'name', 'sender');
}])
->with(['channel.merchant' => function ($q) {
$q->select('uuid', 'name')
->groupBy('name');
}])
->get();
echo $report;
}
These are the queries that Laravel debugbar is showing...
Below are my Eloquent relationships...
Transaction Model
protected $with = ['channel', 'statusPayment'];
public function channel() {
return $this->hasOne(Channel::class, 'uuid', 'entityId');
}
-----
Channel Model
protected $with = ['merchant', 'attachedMerchantAccount'];
public function merchant() {
return $this->hasOne('App\Merchant', 'uuid', 'sender');
}
I have the following query was built by Laravel:
$res = Announcement::whereExists(function ($query) {
$query->select(DB::raw(1))
->from('announcement_category')->join('user_category', 'user_category.category_id', '=', 'announcement_category.category_id')
->where('user_category.user_id', '=', 1)
->where('announcement_category.announcement_id', '=', 'announcements.id');
});
dd($res->get());
The code above gives me empty collection: dd($res->get());.
The plain SQL code of this query is:
select * from `announcements` where exists (select 1 from
`announcement_category` inner join `user_category` on
`user_category`.`category_id` = `announcement_category`.`category_id` where `user_category`.`user_id` = 1
and `announcement_category`.`announcement_id` = announcements.id)
and `announcements`.`deleted_at` is null
If execute this directly in MySQL, I get two result rows.
But why dd($res->get()); retuns me empty?
I don't think there is a whereExists in eloquent model... try this:
$res = DB::table('announcement')->whereExists(function ($query) {
$query->select(DB::raw(1))
->from('announcement_category')->join('user_category', 'user_category.category_id', '=', 'announcement_category.category_id')
->where('user_category.user_id', '=', 1)
->where('announcement_category.announcement_id', '=', 'announcements.id');
})->get();
I'd like to know the position of a user based on its creation date. How do I do that using Eloquent?
I'd like to be able to do something like this:
User::getRowNumber($user_obj);
I suppose you want MySQL solution, so you can do this:
DB::statement(DB::raw('set #row:=0'));
User::selectRaw('*, #row:=#row+1 as row')->get();
// returns all users with ordinal 'row'
So you could implement something like this:
public function scopeWithRowNumber($query, $column = 'created_at', $order = 'asc')
{
DB::statement(DB::raw('set #row=0'));
$sub = static::selectRaw('*, #row:=#row+1 as row')
->orderBy($column, $order)->toSql();
$query->remember(1)->from(DB::raw("({$sub}) as sub"));
}
public function getRowNumber($column = 'created_at', $order = 'asc')
{
$order = ($order == 'asc') ? 'asc' : 'desc';
$key = "userRow.{$this->id}.{$column}.{$order}";
if (Cache::get($key)) return Cache::get($key);
$row = $this->withRowNumber($column, $order)
->where($column, '<=',$this->$column)
->whereId($this->id)->pluck('row');
Cache::put($key, $row);
return $row;
}
This needs to select all the rows from the table till the one you are looking for is found, then selects only that particular row number.
It will let you do this:
$user = User::find(15);
$user->getRowNumber(); // as default ordered by created_at ascending
$user->getRowNumber('username'); // check order for another column
$user->getRowNumber('updated_at', 'desc'); // different combination of column and order
// and utilizing the scope:
User::withRowNumber()->take(20)->get(); // returns collection with additional property 'row' for each user
As this scope requires raw statement setting #row to 0 everytime, we use caching for 1 minute to avoid unnecessary queries.
$query = \DB::table(\DB::raw('Products, (SELECT #row := 0) r'));
$query = $query->select(
\DB::raw('#row := #row + 1 AS SrNo'),
'ProductID',
'ProductName',
'Description',
\DB::raw('IFNULL(ProductImage,"") AS ProductImage')
);
// where clauses
if(...){
$query = $query->where('ProductID', ...));
}
// orderby clauses
// ...
// $query = $query->orderBy('..','DESC');
// count clause
$TotalRecordCount = $query->count();
$results = $query
->take(...)
->skip(...)
->get();
I believe you could use Raw Expresssions to achieve this:
$users = DB::table('users')
->select(DB::raw('ROW_NUMBER() OVER(ORDER BY ID DESC) AS Row, status'))
->where('status', '<>', 1)
->groupBy('status')
->get();
However, looking trough the source code looks like you could achieve the same when using SQLServer and offset. The sources indicates that if you something like the following:
$users = DB::table('users')->skip(10)->take(5)->get();
The generated SQL query will include the row_number over statement.
[For Postgres]
In your model
public function scopeWithRowNumber($query, $column = 'id', $order = 'asc'){
$sub = static::selectRaw('*, row_number() OVER () as row_number')
->orderBy($column, $order)
->toSql();
$query->from(DB::raw("({$sub}) as sub"));
}
In your controller
$user = User::withRowNumber()->get();