I am attempting to build a query on the fly depending upon what is entered in a form. When I do so, I check what the sql statement is in the Console. I have OR and AND contitions, so I use a call back to build the query. the SQL statement that results is:
select `id`, `activity_name`, `activity_name_web`, `year`, `season`, `sex`,
`active_on_web`, `begin_active_on_web`, `end_active_on_web`, `begin_age`,
`end_age`, `begin_date`, `end_date` from `activities` where (season='fall'
OR season='summer' is null) order by `begin_date` desc, `activity_name` asc
limit 25 offset 0 []
notice the words "is null". I can't determine how this phrase is being added.
The Code:
$qry_where = "1";
$arry_Season = array();
if($this->a_fall)
$arry_Season[] = "LOWER(`season`)='fall'";
if($this->a_spring)
$arry_Season[] = "LOWER(`season`)='spring'";
if($this->a_summer)
$arry_Season[] = "LOWER(`season`)='summer'";
if($this->a_winter)
$arry_Season[] = "LOWER(`season`)='winter'";
if(count($arry_Season)>0) {
$qry_where = $arry_Season[0];
if(count($arry_Season)>1){
array_shift($arry_Season);
foreach($arry_Season as $season){
$qry_where .= " OR " . $season;
}
}
}
$activities = Activity::select('id','activity_name','activity_name_web','year','season', 'sex', 'active_on_web',
'begin_active_on_web', 'end_active_on_web', 'begin_age', 'end_age', 'begin_date','end_date')
->where(function($query) use ($qry_where) {
if($qry_where == "1")
$query->where('id','>',0);
else {
$query->where(DB::raw($qry_where));
}
})
->orderBy('begin_date','desc')->orderBy('activity_name','asc')
->paginate(25);
So, if the users checks the box labelled "fall", I add it to the query builder.
so - Where is the phrase "is null" coming from.
select `id`, `activity_name`, `activity_name_web`, `year`, `season`, `sex`,
`active_on_web`,`begin_active_on_web`, `end_active_on_web`, `begin_age`,
`end_age`, `begin_date`, `end_date` from `activities`
where (season='fall' OR season='summer' is null)
order by `begin_date` desc, `activity_name` asc limit 25 offset 0 []
btw, say I check fall and summer, then I ddd($qry_where) just before I build the query, I get this:
"LOWER(`season`)='fall' OR LOWER(`season`)='summer'"
I also need to mention that I am using a livewire component.
thanks for the help in advance.
#apokryfos thank you for your quick answer. It was driving me crazy. It seems when I passed a variable into the ->where(DB::raw()), it evaluated the variable too late for the ->when() to see that the variable contained a comparison?
In any case, I tweeked the solution that #apokryfos a bit and came up with the following:
$activities = Activity::select('id','activity_name','activity_name_web','year','season', 'sex', 'active_on_web',
'begin_active_on_web', 'end_active_on_web', 'begin_age', 'end_age', 'begin_date','end_date',
'cost_member','cost_non_member')
->when(count($seasons) > 0, function($query) use ($seasons) {
$query->whereIn('season', $seasons);
})
->orderBy('begin_date','desc')->orderBy('activity_name','asc')
->paginate($this->items_on_page);
the ->whereIn() could not process the "DB::raw('LOWER(season)', $seasons)" as suggested. If i want to make sure that the data in the [activities].[season] column, I will either have to make sure the seasons are input into the table in lower case, or do a ->select(DB:raw('LOWER(season)') in the SQL statement. I like the first option.
thank you again for your input apokryfos
You did a where(<raw query>) which defaults to do a WHERE <raw query> is not NULL since WHERE assumes a comparison. Here's what I think is a more concise version of your query:
$seasons = array_filter([
$this->a_spring ? 'spring' : null,
$this->a_summer ? 'summer' : null,
$this->a_fall ? 'fall' : null
$this->a_winter ? 'winter' : null
]);
$activities = Activity::select('id','activity_name','activity_name_web','year','season', 'sex', 'active_on_web',
'begin_active_on_web', 'end_active_on_web', 'begin_age', 'end_age', 'begin_date','end_date')
->when(count($seasons) > 0, function($query) use ($seasons) {
$query->whereIn(DB::raw('LOWER(season)'), $seasons);
})->when(count($seasons) == 0, function ($query) {
$query->where('id', > 0); // Not sure you need this part
})
->orderBy('begin_date','desc')->orderBy('activity_name','asc')
->paginate(25);
I would like to reproduce following mySQL query using Laravel query builder:
*SELECT SUM(scores) FROM (SELECT scores FROM player_games WHERE player_id = 1 ORDER BY id DESC LIMIT 2) scores
Any suggestions?
Here the solution:
$sub = playerGame::where('player_id',1)->where('scores','>',0)->limit(2)->orderBy('id','desc');
$count = DB::table( DB::raw("({$sub->toSql()}) as sub") )
->mergeBindings($sub->getQuery())
->sum('scores');
return $count;
Use fromSub():
$sub = playerGame::select('scores')
->where('player_id', 1)
->where('scores', '>', 0)
->limit(2)
->orderBy('id','desc');
$sum = DB::query()->fromSub($sub, 'scores')->sum('scores');
$responce= DB::table('player_games')->where('player_id',1)->sum('amount');
dd(collect($responce)->sortByDesc('id')->take(2));
please cheack this one.....i try it's work....and add use DB;in the top of controller....
below is my code:
$transObj = $this->_objectManager->create('Magento\Sales\Model\Order\Payment\Transaction');
$order_id = 9706;
$trans_result = $transObj->getCollection()
->addAttributeToSelect(
'order_id'
)
->addAttributeToSelect(
'payment_id'
)
->addAttributeToSelect(
'is_closed'
)
->addAttributeToSelect(
'txn_id'
)
->addAttributeToSelect(
'transaction_id'
)
->addFieldToFilter(
'order_id',
array("eq" => $order_id)
);
var_dump($trans_result->getData());
echo "\n Query:".$trans_result->getSelect();
below i am getting the out put as :
array(0) {
}
Query :SELECT main_table.order_id, main_table.payment_id, main_table.is_closed, main_table.txn_id, main_table.transaction_id FROM sales_payment_transaction AS main_table WHERE (order_id = 9706)
when i run the query in the Mysql , i am getting the data fetched properly.
But when i check the output of the result ($trans_result) using getData();
i am getting empty data.
Any help will be appreciated.?
Thanks in advance.
I'm pretty sure its within the attributes. Make it simpler.
$order_id = 9706;
$trans_result = $transObj->getCollection()
->addFieldToFilter('order_id', array('eq' => $order_id))
You should the same value because you're using all columns from the table, so there's no necesity to addfielters on SELECT clause. Although if you want to Select an scpecific column use
$trans_result = $trans_result->addFieldToSelect('payment_id')
Note I'm using addFieldToSelect instead of addAttributeToSelect
I am trying to construct a query that will basically pull all entries whose id's have 2 particular entries in another table so I am trying the below:
$query = $this->createQuery('e');
$subquery1 = $query->createSubquery('sea')
->select('sea.entry_id')
->from('Table sea')
->addWhere('sea.form_element_id = ?', $element)
->addWhere('sea.answer = ?', $answer)
->getDQL();
$subquery2 = $query->createSubquery('sea2')
->select('sea2.entry_id')
->from('Table sea2')
->addwhere('sea2.form_element_id = ?', $element2)
->addWhere('sea2.answer = ?', $answer2)
->getDQL();
$query->addWhere('e.id IN ?', $subquery1)
->addWhere('e.id IN ?', $subquery2);
return $query->execute();
However this is gives me an error on bound params.
What is the correct ways of constructing such subqueries?
NOTE that if I dont bind the params in the subqueries it works fine.
$nestedQuery = " id IN (SELECT sea.entry_id from table sea where sea.form_element_id = ? and sea.answer = ?) "
. " and id IN (SELECT sea2.entry_id from table sea2 where sea2.form_element_id = ? and sea2.answer = ?)";
return $this->findBySql($nestedQuery, array($param1, $param2, $param3, $param4));
That obviously returns a doctrine collection but you can do getFirst or loop through the returned objects or even use the Hydrator to get an array!
How do I say WHERE (a=x AND b=y) OR (c=z AND d=j)
For x , y , z .. are variables .
How can i do that with eloquent ?
for multiple where statements use:
$result = Model::whereRaw('(a = ? and b=?) or (c=? and d=?)', ['x','y','z','j'])->get();
You can achieve this by passing a closure into the where() function of the query builder. This is covered in the advanced wheres section of the docs http://laravel.com/docs/5.0/queries#advanced-wheres
$results = MyModel::where(function($query) {
$query->where('a', 'x')
->where('b', 'y');
})->orWhere(function($query) {
$query->where('c', 'z')
->where('d', 'j');
})->get();