I have created a website based on Grocery Crud and it works fine. Imagine if I have a table like below:
id | name | age
1 | x | 12
2 | y | 20
3 | z | 12
then, I did this query "age=12", the Grocery Crud gives the result:
id | name | age
1 | x | 12
3 | z | 12
The question is how can I create a new table from this Grocery CRUD Query Result?
Thanks
You should use the where function, something like this:
public function ages_12()
{
$crud = new grocery_CRUD();
$crud->where('age',12);
$crud->set_table('table_name');
$output = $crud->render();
$this->_view_output($output);
}
Related
Here is my table structures:
// tickets
+----+------------+----------------------+--------+---------+
| id | subject | content | closed | user_id |
+----+------------+----------------------+--------+---------+
| 1 | subject1 | question1 | 0 | 123 |
+----+------------+----------------------+--------+---------+
// answers
+----+----------------------+---------+-----------+
| id | content | user_id | ticket_id |
+----+----------------------+---------+-----------+
| 1 | answer1 | 123 | 1 |
| 2 | answer2 | 456 | 1 |
+----+----------------------+---------+-----------+
Now I need to get a ticket with along all its answers. I can do that using pure SQL like this:
SELECT t.*, a.*
FROM tickets t
LEFT JOIN answers a
ON t.id = a.ticket_id
WHERE t.id = ?
Now I'm using Laravel and I want to do that using with() class (however not sure it is possible). Any idea what change should I make in the models for doing that?
Noted that I can get just a ticket in Laravel like this:
$ticket = Tickets::where('id', $request->id)->get();
First make a hasMany() relationship in your Tickets model class.
public function answers()
{
return $this->hasMany(Answers::class, 'ticket_id', 'id');
}
And then in your controller query
$tickets = Tickets::with('answers')->where('id', $request->id)->get();
I am trying to retrieve database rows with their relationships. However, the local key is an array. Let me explain using an example.
Lets say I have a table of countries and a table of pages. Each country can have many pages. Each page can belong to multiple countries. I do not have the flexibility to change this schema.
pages
+-------------+-----------+
| id | name | countries |
+-------------+-----------+
| 1 | Page 1 | 1 |
+-------------+-----------+
| 2 | Page 2 | 1,2,3 |
+-------------+-----------+
| 3 | Page 3 | 4,5,6 |
+-------------+-----------+
countries
+----+----------------+
| id | name |
+----+----------------+
| 1 | United States |
+----+----------------+
| 2 | United Kingdom |
+----+----------------+
| 3 | Germany |
+----+----------------+
| 4 | France |
+----+----------------+
| 5 | Hong Kong |
+----+----------------+
| 6 | Thailand |
+----+----------------+
| 7 | Belgium |
+----+----------------+
| 8 | Singapore |
+----+----------------+
My model and controller look something like:
country
public function pages()
{
return $this->hasMany(Page::class, 'id', 'countries');
}
MemberController.php
$countries = Country::with('pages')->get();
This is returning all countries, but only Page 1 contains any relationships.
Is there a way to retrieve relationships using a whereIn approach so all three countries will return appropriate pages?
Thanks in advance
Since Page can belong to many Countries, you need to create a pivot table called country_page and remove the countries column.
Then define two belongsToMany() relationships in both models:
public function pages()
{
return $this->belongsToMany(Page::class);
}
If you're not following Laravel naming conventions listed in my repo and you gave the pivot name a custom name, define it too:
public function pages()
{
return $this->belongsToMany(Page::class, 'custom_pivot_table');
}
Something like this ?
$datas = Pages::where( ##your conditions### )->get()->inArray();
$countries = Countries::pluck('name','id'); // return array of id=>name
foreach($datas as $key=>$data) {
$c = [];
foreach(explode(',',$data['countries']) as $country_id) {
$c[]=$countries[$country_id];
//or
$c[]= ['id'=>$country_id,'name'=>$countries[$country_id]];
}
$datas[$key]['countries']= $c;
}
I have a table called 'templates' and 'details' that has relation templates has many details at my model.
i create a list template table with a filter number or detail, when i input 5 to the filter box, then table only show the templates that has 5 details.
how to do this?
this is my table structure :
templates
id | name | width | heigh
1 | A-5 | 112 | 100
2 | A-4 | 225 | 200
details
template_id | x | y
1 | 10 | 10
1 | 20 | 10
2 | 10 | 10
2 | 20 | 10
$templates = Template::whereHas( 'details', function( $detail ) {
$detail->selectRaw( 'count(id) as aduh' )->whereRaw( 'count(id) = 100' )->groupBy( 'id' );
} );
I think this should work:
$templates = Template::has('details', '=', 5)->get();
This will return all Templates that has 5 details.
I have two simple tables, cats and breeds:
mysql> select * from cats;
+----+--------+---------------+----------+---------------------+---------------------+
| id | name | date_of_birth | breed_id | created_at | updated_at |
+----+--------+---------------+----------+---------------------+---------------------+
| 1 | Rita | 2008-07-06 | 1 | 2015-05-09 20:40:49 | 2015-05-09 20:50:20 |
| 2 | Muni | 1992-05-15 | 3 | 2015-05-09 20:50:54 | 2015-05-09 20:50:54 |
| 3 | Hector | 2005-01-23 | 4 | 2015-05-09 21:08:23 | 2015-05-09 21:08:23 |
+----+--------+---------------+----------+---------------------+---------------------+
3 rows in set (0.00 sec)
mysql> select * from breeds;
+----+------------+
| id | name |
+----+------------+
| 1 | Domestic |
| 2 | Persian |
| 3 | Siamese |
| 4 | Abyssinian |
+----+------------+
4 rows in set (0.00 sec)
All I want to do is get a list of the cats that are of a certain breed. In the cats table, breed_id is a FK that points to the PK of the breeds table. The example code in my book which is supposed to return a view with all cats of a specific breed returns no results:
The url I am trying is /cats/breeds/Domestic
The view that is generated uses this logic in the routes.php file:
Route::get('cats/breeds/{name}', function($name)
{
$cats = Furbook\Cat::with('breeds')
->whereName($name)
->get();
dd($cats);
});
When I dd($cats) I get zero results even though I have a cat with a domestic breed_id of 1. What have I done wrong here?
EDIT:
I can get it to work with the following hacky code, which first gets the id from the breeds table by querying against the name field, then queries the cats table with that id:
$breed = Furbook\Breed::whereName($name)->get();
$id = $breed[0]['attributes']['id'];
$cats = Furbook\Cat::whereId($id)->get();
How do I make this into one Eloquent query? I see no examples for this kind of query on the Laravel site.
For more information this is how the models look:
class Breed extends Model {
public $timestamps = false;
public function cats()
{
return $this->hasMany('Furbook\Breed');
}
}
class Cat extends Model {
protected $fillable = [
'name',
'date_of_birth',
'breed_id',
];
public function breed()
{
return $this->belongsTo('Furbook\Breed');
}
}
You're asking the system to give you all cats with a name of Domestic - not all cats of the breed name Domestic.
Assuming your model relationships are in order, you could do e.g.
$cats = Furbook\Breed::whereName($name)->first()->cats;
Also, my Burmese cat just hit the monitor; I think she's upset that she's not in the breeds list.
I have a form that has a dropdown where the user can select up to 5 countries.
I have two related tables, users and countries, where each user can have multiple countries selected.
The users table:
+----+----------+----------------------+
| id | username | description |
+----+----------+----------------------+
| 1 | user1 | Some description. |
| 2 | user2 | Another description. |
+----+----------+----------------------+
The countries table:
+----+---------+---------------+
| id | user_id | country |
+----+---------+---------------+
| 1 | 1 | Canada |
| 2 | 1 | United States |
| 3 | 1 | France |
| 4 | 2 | Spain |
| 4 | 2 | Italy |
+----+---------+---------------+
As you can see, the country dropdown values should each have their own row in the table.
Here is my UserController so far (it only inserts into the users table for now):
$user = new User;
$user->username = Input::get('username');
$user->description = Input::get('description');
$user->save();
How would I insert multiple dropdown values such that each has its own row? What should my models look like for this to work?
If you're gonna use eloquent to do it, here's a suggestion:
//in your User model
public function countries()
{
return $this->hasMany('Country');
}
//insert from the controller
$countries = json_decode(Input::get('countries'), true); //assuming you use json to submit the multiple countries
$user_countries = array();
foreach($countries as $country)
{
$user_countries[]=new Country(array('country'=>$country));
}
//save the countries into the DB
$user->countries()->saveMany($user_countries);
for more info, do refer to the documentation:
http://laravel.com/docs/4.2/eloquent#inserting-related-models