This question already has answers here:
Call to a member function on a non-object [duplicate]
(8 answers)
Closed 9 years ago.
My Controller:
class Page extends CI_Controller {}
public function add()
{
// $this->input->post('title')
$models = $this->load->model('Page_Model', 'page');
echo $models->page->insertData();
}
My Model:
class Page_model extends CI_Model {}
public function insertData()
{
echo 'sdvsdf';
}
Error:
Fatal error: Call to a member function insertData() on a non-object in
I do not know what happened. Seems working correctly.
You should use $this->page->insertData(); to call the method.
The model method in the Loader class returns void.
See the comment, #return void in system/core/loader.php
/**
* Model Loader
*
* This function lets users load and instantiate models.
*
* #param string the name of the class
* #param string name for the model
* #param bool database connection
* #return void
*/
public function model($model, $name = '', $db_conn = FALSE)
...
Related
Assume we have a model name "Article" in Laravel and want to make query for retrieving latest articles, so one way is to define a method in the "Article" model like this:
public function newArticle()
{
return static::where('created_at', '>', Carbon::subMonths(1));
}
The question is, why we should use
static::
in the above code?
Is it possible to use
$this or self::
instead of
"static::" ?
Thanks in advance,
You could but there is not interest because:
where method does not exist statically on Illuminate\Database\Eloquent\Model class, so it calls __callStatic magic method which delegates the call to an instance
/**
* Handle dynamic static method calls into the method.
*
* #param string $method
* #param array $parameters
* #return mixed
*/
public static function __callStatic($method, $parameters)
{
return (new static)->$method(...$parameters);
}
It calls where method on instance but it does not exist either, so it calls __call magic method which delegates it an Illuminate\Database\Eloquent\Builder instance.
/**
* Handle dynamic method calls into the model.
*
* #param string $method
* #param array $parameters
* #return mixed
*/
public function __call($method, $parameters)
{
if (in_array($method, ['increment', 'decrement'])) {
return $this->$method(...$parameters);
}
return $this->forwardCallTo($this->newQuery(), $method, $parameters);
}
/**
* Get a new query builder for the model's table.
*
* #return \Illuminate\Database\Eloquent\Builder
*/
public function newQuery()
{
return $this->registerGlobalScopes($this->newQueryWithoutScopes());
}
I am currently using laravel 5.8 with laravel nova.
When i use a model class inside my nova action file, like this:
Namespace App\Nova\Actions;
use App\Nova\User;
use Orlyapps\NovaBelongsToDepend\NovaBelongsToDepend;
class PlayerDD extends Action
{
public $name = 'Spelers toekennen';
/**
* Perform the action on the given models.
*
* #param \Laravel\Nova\Fields\ActionFields $fields
* #param \Illuminate\Support\Collection $models
* #return mixed
*/
public function handle()
{
}
/**
* Get the fields available on the action.
*
* #return array
*/
public function fields()
{
return [
BelongsTo::make(User::class)
];
}
}
Laravel returns the error: Class 'App\Nova\Actions\App\Nova\User' not found.
While i am using the root namespace for the User model, the namespace gets appended to the current namespace.
Is there a fix for this, and where should i look for conflicts?
Thanks in advance!
BTW, i tried this \App\Nova\User
I followed the installation to install this service provider, but each time I try to create a migration file I get this error:
[ErrorException]
Argument 2 passed to duxet\Rethinkdb\Console\Migrations\MigrateMakeCommand::__construct() must be an instance
of Illuminate\Foundation\Composer, instance of Illuminate\Support\Composer given, called in D:\projects\app\vendor\duxet\laravel-rethinkdb\src\RethinkdbServiceProvider.php on line 41 and defined
I'm on line 41 and can see that the second parameter is $composer, which equals $composer = $app['composer'];. I thought maybe changing Illuminate\Support\Composer to Illuminate\Foundation\ServiceProvider might just fix the issue, but doing this throws another error saying that:
[Symfony\Component\Debug\Exception\FatalErrorException]
Class 'Illuminate\Foundation\ServiceProvider' not found
Anyone running into this issue?
Update
Where the original error is occurring (I marked Line 41):
<?php
namespace duxet\Rethinkdb;
use duxet\Rethinkdb\Console\Migrations\MigrateMakeCommand;
use duxet\Rethinkdb\Eloquent\Model;
use duxet\Rethinkdb\Migrations\MigrationCreator;
use Illuminate\Support\ServiceProvider;
class RethinkdbServiceProvider extends ServiceProvider
{
/**
* Bootstrap the application events.
*
* #return void
*/
public function boot()
{
Model::setConnectionResolver($this->app['db']);
Model::setEventDispatcher($this->app['events']);
}
/**
* Register the service provider.
*
* #return void
*/
public function register()
{
$this->app->resolving('db', function ($db) {
$db->extend('rethinkdb', function ($config) {
return new Connection($config);
});
});
$this->app->singleton('command.rethink-migrate.make', function ($app) {
$creator = new MigrationCreator($app['files']);
$composer = $app['composer'];
return new MigrateMakeCommand($creator, $composer); <= line 41
});
$this->commands('command.rethink-migrate.make');
}
public function provides()
{
return ['command.rethink-migrate.make'];
}
}
The MigrateMakeCommand class:
<?php
namespace duxet\Rethinkdb\Console\Migrations;
use duxet\Rethinkdb\Migrations\MigrationCreator;
use Illuminate\Database\Console\Migrations\MigrateMakeCommand as LaravelMigration;
use Illuminate\Foundation\Composer;
class MigrateMakeCommand extends LaravelMigration
{
/**
* The console command signature.
*
* #var string
*/
protected $signature = 'make:rethink-migration {name : The name of the migration.}
{--create= : The table to be created.}
{--table= : The table to migrate.}
{--path= : The location where the migration file should be created.}';
/**
* Create a new migration install command instance.
*
* #param duxet\Rethinkdb\Migrations\MigrationCreator $creator
* #param \Illuminate\Foundation\Composer $composer
*
* #return void
*/
public function __construct(MigrationCreator $creator, Composer $composer)
{
parent::__construct($creator, $composer);
}
}
I am having an issue with laravel not seeing my tags() method for attaching new tags on a new entry. I keep getting Call to a member function on a non-object when I try to run the method and attach tags to my Tile model. All methods are returning their relations. I followed the same order as the documentation says eloquent.
Controller
$tile = \Tiles\Tile::find($tile_id);
$tile->tags()->attach($tag_array);
Model
<?php namespace Tiles;
use Illuminate\Database\Eloquent\Model;
class Tile extends Model {
/**
* The Tile table
* #var string
*/
protected $table = 'tiles';
/**
* Pivot table for tags
* #var string
*/
protected $pivot = 'tag_tile';
/**
* Get the tags associated with the given tile
*
* #return \Illuminate\Database\Eloquent\Relations\BelongsToMany
*/
public function tags() {
return $this->belongsToMany('Tiles\Tag', $this->pivot, 'tile_id', 'tag_id')->withTimestamps();
}
}
Try it
Model
public function tags() {
return $this->belongsToMany('Tiles\Tag', $this->pivot, 'tag_id', 'tile_id')->withTimestamps();
}
Thanks for all your help. I figured out the solution. I created a method in my model and pushed each to an array and fed it to the attach method. It works now.
Is there a way to extend the Pagination Class of Laravel 4 ?
I tried some things but nothing good...
I'm here :
PaginationServiceProvider.php
class PaginationServiceProvider extends \Illuminate\Pagination\PaginationServiceProvider {
/**
* Indicates if loading of the provider is deferred.
* #var bool
*/
protected $defer = false;
/**
* Bootstrap the application events.
* #return void
*/
public function boot(){
$this->package('thujohn/pagination');
}
/**
* Register the service provider.
* #return void
*/
public function register(){
$this->app['paginator'] = $this->app->share(function($app){
$paginator = new Environment($app['request'], $app['view'], $app['translator']);
$paginator->setViewName($app['config']['view.pagination']);
return $paginator;
});
}
/**
* Get the services provided by the provider.
* #return array
*/
public function provides(){
return array();
}
}
Environment.php
class Environment extends \Illuminate\Pagination\Environment {
public function hello(){
return 'hello';
}
}
I replaced 'Illuminate\Pagination\PaginationServiceProvider', by 'Thujohn\Pagination\PaginationServiceProvider',
When I call $test->links() it's ok
When I call $test->hello() it fails
When I call Paginator::hello() it's ok
Any idea ?
Everyting is fine except that Paginator::make() returns Paginator instance, not Environment.
You should move Your method to Paginator class.
Today I've posted on GH my extension for Paginator. You can check it as a reference desmart/pagination