I want to get the total of registered members of each building.
Member Model:
public function count_all($buildingId)
{
$this->db->where('id', $buildingId);
$query = $this->db->get('building_members');
return $query->num_rows();
}
Member Table Rows
Id
building_id
use count_all_results()
1).This will be count all records from table
echo $this->db->count_all_results('building_members');
2).This will be count rows on specifice condition
$this->db->where('id', $buildingId);
$this->db->from('building_members');
echo $this->db->count_all_results();
Related
I have 3 tables TAble, TableB and TableC.
each one with 1 milion registers.
And i have the Laravel eloquent query.
$list= TableA::with([
'TableB',
'TableC'
])
->whereIn('field1',['A','B','C'])
->where('created_at','>=','2018-01-01') ->orderBy('fieldC', 'ASC')->orderBy('created_at', 'ASC')
->get()
->take(50) ;
TableA have TableB and TableC mapping this way.
public function TableB(){
return $this->belongsTo('TableB', 'fk_id', 'id');
}
public function TableC(){
return $this->hasMany('TableC');
}
How can i execute this query limiting number of registes in "TableB" and "TableC".
if i use take() it only limits the final result.
What do you want to do?
If you want to process data in chunks use
->chunk(50, function ($data) use ($variable) {
//process
});
If you want display data in tables with pages use paginate.
I have issues by connecting to tables
I have 2 Model
First Model called PodioBorgerNotat with columns in the table called podio_borger_notats
id
user_id
item_id
app_item_id
borger_item_id (foreign key) 🔐
medarbejder_item_id
status
The second Model called PodioBorgerStamark with columns in the table podio_borger_stamarks
id
item_id (local key) 🔑
app_item_id
status
initials
name
I want to make a connection between PodioBorgerNotat and PodioBorgerStamark
so this is what I do in PodioBorgerNotat Model
public function borger()
{
return $this->belongsTo(PodioBorgerStamark::class, 'borger_item_id', 'item_id');
}
Now I want to output the result by executing this output
$borgernotater = PodioBorgerNotat::orderBy('created_at', 'acs')->orderBy('id', 'desc')->with('PodioBorgerStamark')->paginate(10);
This wont work and i get this error messsage
Call to undefined relationship [PodioBorgerStamark] on model [App\PodioBorgerNotat].
Your relation name is borger:
public function borger(){
...
}
You should call borger in with():
$borgernotater = PodioBorgerNotat
::orderBy('created_at', 'acs')
->orderBy('id', 'desc')
->with('borger')
->paginate(10);
I have 3 columns in my database. 2 columns is connected with one column by using a hybrid relationship.
here is my query.
$data=Client::with('product','department')->select(['product.product_name','product.product_description']);
how to select row from another table?
in your product or department relation method do the selection with all the forging keys if you have any other relation for product for later use is you want them like
public function product()
{
return $this->hasMany(department::class)->select(['id', 'another_relation_to_product_id', 'product_name', 'product_description']);
}
You can do it this way
$data = Client::with(['product:id,product_name,product_description','department'])->get();
see docs https://laravel.com/docs/5.7/eloquent-relationships#constraining-eager-loads in Eager Loading Specific Columns section. Or you can do it
App\User::with([
'product' => function ($query) {
$query->select('id', 'product_name', 'product_description');
},
'department'
])->get();
I am learning how to do simple queries using the Yii2 framework. I use PostgreSQL.
I am trying to join two tables and get the data from both tables with a where condition.
The tables are called Admins and Persons.
The join use field called idadm.
The condition is idadm = 33. This works great but the result has data only from the Admins table and I need data from the other table.
Here is my example:
$query = \app\models\Admins::find()
->select('*')
->leftJoin('persons', 'persons.idadm = admins.idadm')
->where(['admins.idadm' => 33])
->with('persons')
->all();
I am following the Yii2 official guide: http://www.yiiframework.com/doc-2.0/guide-db-active-record.html
Update: Here I show the updated code that doesn't solve de problem:
You need to write all column name in select().
$query = \app\models\Admins::find()
->select('admin.*,persons.*') // make sure same column name not there in both table
->leftJoin('persons', 'persons.idadm = admins.idadm')
->where(['admins.idadm' => 33])
->with('persons')
->all();
And also you need to define person table attributes in Admin model.
Second way is get records as array,so you dont need to define attributes in Admin model.
$query = \app\models\Admins::find()
->select('admin.*,persons.*') // make sure same column name not there in both table
->leftJoin('persons', 'persons.idadm = admins.idadm')
->where(['admins.idadm' => 33])
->with('persons')
->asArray()
->all();
Ensure that active record has required relations, e.g. something like follows:
class Admins extends \yii\db\ActiveRecord {
public function table() {
return "admins";
}
public function getPersons()
{
return $this->hasMany(Person::className(), ['idadm' => 'idadm']);
}
}
class Person extends \yii\db\ActiveRecord {
public function table() {
return "persons";
}
}
Then use joinWith to build query:
$query = Admins::find()
->joinWith('persons')
->limit(1);
$result = $query->createCommand()->getSql();
echo $result;
Here is produced query:
SELECT `admins`.* FROM `admins`
LEFT JOIN `person` ON `admins`.`idadm` = `person`.`idadm` LIMIT 1
I need to select records created at current year, with Eloquent
So far, this is the code I'm using. How can I filter the results to retrieve only the ones created in the current year?
public function vacationsbalance($typeId) {
// Get vacataions balance for existing employee.
$vacationsBalance = $this->vacations()->where('vacation_type_id', '=', $typeId)->sum('days_num');
return $vacationsBalance;
}
Assuming you have timestamps in your table (that is, you have a created_at column with the record's creation date), you can use:
public function vacationsbalance($typeId) {
// Get vacations balance for existing employee and for the current year.
return $this->vacations()
->where('vacation_type_id', '=', $typeId)
->whereRaw('year(`created_at`) = ?', array(date('Y')))
->sum('days_num');
}
Check Eloquent's documentation and look for whereRaw.