I've been sitting for hours trying to find how to get values from table's iab_categories column category_name. I've found only the way to echo all table names:
$connection = Yii::app()->db;//get connection
$dbSchema = $connection->schema;
//or $connection->getSchema();
$tableNames = $dbSchema->getTableNames();//returns array of tbl schema's
var_export($tableNames);
Can anyone help me?
You can use query builder to do that:
$categories = (new \yii\db\Query())
->select(['category_name'])
->from('iab_categories')
->column();
The select() method sets what columns should be included in result.
The from() method sets what table should be queried.
And the column() method executes the query and return first column from result set as array.
EDIT: now, I've realized that even though you've mentioned Yii 2 in title the code you've included in question looks more like Yii 1.x.
So there is query builder version for Yii 1.x:
$categories = Yii::app()->db->createCommand()
->select('category_name')
->from('iab_categories')
->queryColumn();
Related
I've been trying this query
Model::find()
->innerJoin('TranslationTable', 'TranslationTable.model_id = Model.id')
->where(['IN', 'translation_code', $arrayOfTranslationCodes])
->asArray()
->all();
The translation table contains multiple rows with the same ID but with different translation codes.
This query only returns the first matching locale for a given ID. How would I retrieve the other translation codes for a given ID?
This is the solution that I came to:
$query = Model::find()
-> innerJoin('TranslationTable', 'TranslationTable.model_id = Model.id');
foreach ($arrayOfTranslationCodes as $translation)
{
$query->andWhere(['OR', 'translation_code', $translation])
}
$queryResponse = $query->asArray()->all();
This allowed me to find rows with the same id, but have different translations. You need to store the $query->asArray()->all(); as $query itself just returns the active query.
I have this code in Laravel:
DB::table('items')
->whereRaw("? = 1", ['active'])
->get();
In my database table, I have a column named active and the query I want to run is:
SELECT *
FROM items
WHERE active=1
My code fails because the query passes my 'active' parameter as a String instead of a column name in SQL syntax (which is the expected behavior).
So, instead of the above, I get something like this:
SELECT *
FROM items
WHERE "active"=1
Any idea how to solve this?
PS: I tried the MySQL function TRIM but with no success (perhaps I did not do it correctly).
It is not the cleanest way;
$day = 'Monday'; // dynamically Tuesday, Wednesday....
$method = 'where' . $day;
return DB::table('items')->$method('1')->get();
I'm beginner in laravel and I'm trying to run comparison queries given in the database.
I saved a field date that is implemented by a form together with other fields including the name.
I tried to query the name and it works all regularly with this code below.
I would like to retrieve all the rows that have the name variable as the field name that I pass (and here it seems to work) and then only those with the field date that have the specified month at the number that I pass as variable $month.
what would be the right form to do this?
thanks
Piero
public function filterparamenter(){
$name = request('name');
$month = request('$month');
$query = subagente::all();
$query = $query->where('subagente', $subagente);
$query = $query->whereMonth('data', $month)->get();
Method Illuminate\Database\Eloquent\Collection::whereMonth does not exist.
Using ::all() returns a Collection, which has a ->where() method, but ->whereMonth() is only available on Eloquent's Builder class. Change your code as follows:
$query = subagente::query();
$query = $query->where('subagente', $subagente);
$query = $query->whereMonth('data', $month)->get();
Or, more compact:
$results = subagente::where("subagente", $subagente)
->whereMonth("data", $month)
-get();
Using ::query() or ::where() to start your query will generate a Builder instance, which you can chain addition clauses (->where(), ->whereMonth(), etc) on before calling ->get() to return a Collection of subagente records.
Side note, should "data" be "date"?
I have this code in a laravel project
$state_query = Advertisement::active()
->notExpired()
->inTime()
->network($network)
->textbook($textbook, $textbook_category_id, $book_category_id)
->grade($grade)
->state($state_id);
$city_query = Advertisement::active()
->notExpired()
->inTime()
->network($network)
->textbook($textbook, $textbook_category_id, $book_category_id)
->grade($grade)
->city($city_id);
$district_query = Advertisement::active()
->notExpired()
->inTime()
->network($network)
->textbook($textbook, $textbook_category_id, $book_category_id)
->grade($grade)
->district($district_id);
$result = $state_query
->union($city_query)
->union($district_query);
now, I want to make "$result" variable as a database table and use "where" and "sum" eloquent functions on it
how can I do that?
Simply make a collection :
https://laravel.com/docs/5.3/collections
The results of Eloquent queries are always returned as Collection instances.
I have a problem with the toArray() method in Doctrine. Its doesn't get my relations:
First query :
$q = Doctrine::getTable('posts')->find(1);
debug($q->toArray(true));
Print the postid=1 with out the relations
$q = Doctrine::getTable('posts')->find(1);
$q->Tags->toArray();
debug($q->toArray(true));
...prints the results with tag relation.
But i want to do:
Doctrine::getTable('posts')->findAll()->toArray(true);
...and get all of relations of posts , instead I got an array of post row.
Any idea about how to make it work with the relations?
(notice i added toArray(true) for deep property.
thanks for any help
You could create named query for this table with all relations attached:
Doctrine::getTable('posts')->addNamedQuery('get.by.id.with.relations', 'DQL here...');
And then just use something like this:
Doctrine::getTable('posts')->find('get.by.id.with.relations', array(123));
I beleive you need to do a Join with the query. Otherwise it doesnt hydrate the realated data.
$q = Doctrine_Query::create()
->from('Post p')
->leftJoin('p.RelatedModel1 rm1')
->leftJoin('p.RelatedModel2 rm2');
$q->findAll()->toArray(true);
$q = Doctrine_Query::create()
->from('Post p')
->leftJoin('p.RelatedModel1 rm1')
->leftJoin('p.RelatedModel2 rm2');
$q->findAll()->toArray(true);
Can i Add ->limit()->offset()
to the query ?
I guss that if i first create the query then findAll will act the same as execute right ?