Laravel Eloquent ORM - How to get the all the properties of afrom/of a collection in a array? - laravel

$user_emails = ["email_1#domain.com", "email_2#domain.org"];
$users = Users::whereIn("email", $user_emails);
The table for users also has a phone column for each user. What's the best way to get a list/array of the phone number as an array?
$users->all()->phone(); // Like (which is not correct)


Try to use get() like :
$users = Users::whereIn("email", $user_emails)->get(['phone'])->toArray();
Or also pluck() like :
$users = Users::whereIn("email", $user_emails)->pluck('phone')->all();
Hope this helps.


Use pluck method to fetch a specific column's values and then use toArray on returned Collection object to get results as an array.
$phoneNumbers = Users::whereIn("email", $user_emails)->pluck('phone')->toArray();


You can get all column data with get()
Example:
$user = $user::where('email', $user_emails)->get();
You can get the list with foreach loop method.

Related

Best approcah for getting the object in the foreach loop in laravel using eloquent?

I have some properties and i want to get the object for each property, currently, I am using the eloquent in the foreach loop like this as shown in the image that will describe the best..
but it is really not a good approach because if I have 100 published property I will making 100 calls to the DB... and that is not correct?
I need a suggestion and a proper solution to this query?
Thanks in advance

Before foreach you can get all the RentalProperty items from db like this:
$allRentalProperties = RentalProperty::all();
and in foreach loop you can get those items without connecting database like this:
$propertyObj = $allRenatalProperties -> where('id', $property['id']) -> first();
Also, you can use array shorthand.
$newArray = [];
it's much simple and readable.

You can do array pluck before loop:
$propertyIds = Arr::pluck($published_properties, 'id');
Then you can make a whereIn query to get only those data which are in $published_properties object
$propertyObj = RentalProperty::whereIn('id', $propertyIds);
Then you can access that object with id if you change array key with record id.

Laravel retrieve only specific fields from each item of collection

I may be missing something extremely trivial, but is it possible to retrieve specific columns/fields from models when grabbing a collection rather then returning the entire item's fields?
Here is my query:
$items = Items::where('visible', true)->take(10)->get();
This obviously returns each item in there entirety, including unique id's, and other fields i dont want to be fetched... how can i refine this query to just select specific fields from the models?

Laravel Query Builder get() function receives array of columns which you need to fetch.
$items = Items::where('visible', true)->take(10)->get(['column_1', 'column_2']);

Use select() method to do this:
$items = Items::select(['column_1', 'column_2']'])->where('visible', true)->take(10)->get();
Source: Latavel Database Query Builder

Laravel Query Builder gives a huge flexibility to write this types of query.
You can use select(), get(), all() methods.
Items::where('visible', true)->take(10)->get('col_1', 'col_2');
OR
Items::select('col_1', 'col_2')->where('visible', true)->take(10)->get();
Items::select(['col_1', 'col_2'])->where('visible', true)->take(10)->get();

How to select specific columns in laravel eloquent

lets say I have 7 columns in table, and I want to select only two of them, something like this
SELECT `name`,`surname` FROM `table` WHERE `id` = '1';
In laravel eloquent model it may looks like this
Table::where('id', 1)->get();
but I guess this expression will select ALL columns where id equals 1, and I want only two columns(name, surname). how to select only two columns?

You can do it like this:
Table::select('name','surname')->where('id', 1)->get();

Table::where('id', 1)->get(['name','surname']);

You can also use find() like this:
ModelName::find($id, ['name', 'surname']);
The $id variable can be an array in case you need to retrieve multiple instances of the model.

By using all() method we can select particular columns from table like as shown below.
ModelName::all('column1', 'column2', 'column3');
Note: Laravel 5.4

You first need to create a Model, that represent that Table and then use the below Eloquent way to fetch the data of only 2 fields.
Model::where('id', 1)
->pluck('name', 'surname')
->all();

Also Model::all(['id'])->toArray() it will only fetch id as array.

Get value of one column:
Table_Name::find($id)->column_name;
you can use this method with where clause:
Table_Name::where('id',$id)->first()->column_name;
or use this method for bypass PhpStorm "Method where not found in App\Models":
Table_Name::query()->where('id','=',$id)->first()->column_name;
in query builder:
DB::table('table_names')->find($id)->column_name;
with where cluase:
DB::table('table_names')->where('id',$id)->first()->column_name;
or
DB::table('table_names')->where('id',$id)->first('column_name');
last method result is array

You can use get() as well as all()
ModelName::where('a', 1)->get(['column1','column2']);

From laravel 5.3 only using get() method you can get specific columns of your table:
YouModelName::get(['id', 'name']);
Or from laravel 5.4 you can also use all() method for getting the fields of your choice:
YourModelName::all('id', 'name');
with both of above method get() or all() you can also use where() but syntax is different for both:
Model::all()
YourModelName::all('id', 'name')->where('id',1);
Model::get()
YourModelName::where('id',1)->get(['id', 'name']);

To get the result of specific column from table,we have to specify the column name.
Use following code : -
$result = DB::Table('table_name')->select('column1','column2')->where('id',1)->get();
for example -
$result = DB::Table('Student')->select('subject','class')->where('id',1)->get();

use App\Table;
// ...
Table::where('id',1)->get('name','surname');
if no where
Table::all('name','surname');

If you want to get a single value from Database
Model::where('id', 1)->value('name');

Also you can use pluck.
Model::where('id',1)->pluck('column1', 'column2');

You can use Table::select ('name', 'surname')->where ('id', 1)->get ().
Keep in mind that when selecting for only certain fields, you will have to make another query if you end up accessing those other fields later in the request (that may be obvious, just wanted to include that caveat). Including the id field is usually a good idea so laravel knows how to write back any updates you do to the model instance.

You can get it like
`PostModel::where('post_status', 'publish')->get(['title', 'content', 'slug', 'image_url']`)
link

you can also used findOrFail() method here it's good to used
if the exception is not caught, a 404 HTTP response is automatically sent back to the user. It is not necessary to write explicit checks to return 404 responses when using these method not give a 500 error..
ModelName::findOrFail($id, ['firstName', 'lastName']);

While most common approach is to use Model::select,
it can cause rendering out all attributes defined with accessor methods within model classes. So if you define attribute in your model:
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class User extends Model
{
/**
* Get the user's first name.
*
* #param string $value
* #return string
*/
public function getFirstNameAttribute($value)
{
return ucfirst($value);
}
}
And then use:
TableName::select('username')->where('id', 1)->get();
It will output collection with both first_name and username, rather than only username.
Better use pluck(), solo or optionally in combination with select - if you want specific columns.
TableName::select('username')->where('id', 1)->pluck('username');
or
TableName::where('id', 1)->pluck('username'); //that would return collection consisting of only username values
Also, optionally, use ->toArray() to convert collection object into array.

If you want to get single row and from the that row single column, one line code to get the value of the specific column is to use find() method alongside specifying of the column that you want to retrieve it.
Here is sample code:
ModelName::find($id_of_the_record, ['column_name'])->toArray()['column_name'];

If you need to get one column calling pluck directly on a model is the most performant way to retrieve a single column from all models in Laravel.
Calling get or all before pluck will read all models into memory before plucking the value.
Users::pluck('email');

->get() much like ->all() (and ->first() etc..) can take the fields you want to bring back as parameters;
->get/all(['column1','column2'])
Would bring back the collection but only with column1 and column2

You can use the below query:
Table('table')->select('name','surname')->where('id',1)->get();

If you wanted to get the value of a single column like 'name', you could also use the following:
Table::where('id', 1)->first(['name'])->name;

For getting multiple columns (returns collection) :
Model::select('name','surname')->where('id', 1)->get();
If you want to get columns as array use the below code:
Model::select('name','surname')->where('id', 1)->get()->toArray();
If you want to get a single column try this:
Model::where('id', 1)->first(['column_name'])->column_name;

Eloquent ORM select all with limit and column name

Hi how can I select limited number of all the item from model and the selection with certain names.
eg:
$product = Product::all()->limit(4)->select('id','name');
Most of example start with Product::find(1) but my case, I don't have id. Thanks

Use the other methods first, then call get at the end:
$products = Product::limit(4)->select('id', 'name')->get();

Limit Query Results
To limit the number of results returned from the query, or to skip a given number of results in the query, you may use the skip() and take() methods:
Example of User model which extends Eloquent:
$users = User::take(5)->skip(10)->get();

Product::all() will be used when get all data without any condition. You need to use get method.
you need to
$products = Product::select('id', 'name')->limit(4)->get();

Laravel Queries: 'lists' method

The 'lists' method surely does retrieve a list of column's values, but I want the method to retrieve the values but without duplication, how to achieve that?
$types = DB::table('events')->lists('type');

If you need to get just distinct values, you should do:
$types = DB::table('lists')->distinct()->lists('type');

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