Im getting error, when im trying to create new instance of my class.
class MyClass
{
public $link;
public function __construct()
{
$this->Connect();
}
private function Connect()
{
$db_host = DB_HOST; // defined in included file
$db_name = DB_NAME; // defined in included file
$this->link = new PDO("mysql:host=$db_host;dbname=$db_name;charset=UTF-8", DB_USER, DB_PASSWORD);
$this->link->setAttribute(PDO::ATTR_AUTOCOMMIT,FALSE);
}
// other methods here
// there is no custom __get() method
}
Im trying to create new instance and use one of methods:
include "inc/myclass.php";
$db = new MyClass();
$db->InsertPost("2012-01-01 10:00", "Test content", "Test title");
Im getting error:
Method MyClass::__get() must take exactly 1 argument
I tried to add accessor without any parameter:
public function __get()
{
return $this;
}
But im still getting this error.
I had to override default accessor (get) like this:
public function __get($name)
{
return $this;
}
I don't understand why i need $name there, but it works perfect.
Related
Im tring to export large data in queue on s3 and getting Serialization of 'PDO' is not allowed exception/ Here is my code:
Controller
$transactions = Transaction::query()
->with([
'user',
'user.profile',
'senderUser',
'receiverUser',
'senderUser.roles',
'receiverUser.roles'
])->filterByUser()
->filter($filters)
->orderByDesc('created_at');
if (request()->export_transactions){
(new TransactionsExport(auth('sanctum')->user(),$transactions))->store('transactions-exports/' . now()->format('d:m:Y') . '.csv', 's3', \Maatwebsite\Excel\Excel::CSV);
return response()->json('Export started');
}
Export file
class TransactionsExport implements FromQuery, WithMapping, WithHeadings, WithCustomQuerySize, ShouldQueue
{
use Exportable;
private $user;
private $transactions;
public function __construct(User $user, $transactions)
{
$this->user = $user;
$this->transactions = $transactions;
}
/**
* #return Builder
*/
public function query()
{
return $this->transactions;
}
public function querySize(): int
{
return $this->transactions->count();
}
public function headings(): array
{
return [
//headings
];
}
public function prepareRows($transactions): array
{
//code here
}
public function map($transaction): array
{
//code here
}
}
I also tried to trigger it like this (with additional paramethers and without and with different allowed methods (store, download etc.))
(new TransactionsExport(auth('sanctum')->user(),$transactions))->queue('transactions-exports/' . now()->format('d:m:Y') . '.csv', 's3', \Maatwebsite\Excel\Excel::CSV);
Also, I tried move Transaction::query() direct to query method in export file.
Also didnt help toSql() method (Call to a member function count() on string exception appears)
Don't know what I'm doing wrong. Thanks for help.
I have solved the problem by deleting the injection of classes in the constructor, it's not allowed in jobs (queues/ if you need an object of a class, better to call it like new Class()), and now all is working fine.
I'm trying to write a simple Discord bot in TypeScript, using discord.js and clime.
I'm running into an issue where I'm trying to access an object property of a context object that I pass around, but it's always null. When I check the properties using either vscode's debugger or console.log, the object seems to have all of the properties that I would expect, except they're all nested one layer too deep.
export class DiscordCommandContext extends Context {
public message:Message;
public client:Client;
constructor (options:ContextOptions, message:Message, client:Client) {
super(options);
this.message = message;
this.client = client;
}
}
When I try accessing it the message property, it's always falsy (if block is skipped over).
if (context.message.guild) {
var settings = await repo.getRealmSettings(+context.message.guild.id);
if (key) {
embed.fields.push({name:key,value:settings[key]});
} else {
Object.keys(settings).forEach(property => {
embed.fields.push({name:property,value:settings[property]});
});
}
}
But in the console, I see this:
DiscordCommandContext appears to have nested "message" objects, one of the wrong type
I cannot access context.message.message, I get "Property 'message' does not exist on type 'Message'", which is as I would expect.
EDIT 1
My instantiation code looked like this:
var options:ContextOptions = {
commands: argArr,
cwd: ""
};
var context = new DiscordCommandContext(options, this.message, this.client );
Where argArr is a split string passed into the method and both this.message and this.client are populated in the constructor of the calling class (none are null)
I managed to get DiscordCommandContext to function properly by changing it to this:
export class DiscordCommandContext extends Context {
public message:Message;
public client:Client;
public realmSettings: RealmSettings;
constructor (options:ContextOptions, contextExtension:DiscordCommandContextValues) {
super(options);
this.message = contextExtension.message;
this.client = contextExtension.client;
this.realmSettings = contextExtension.realmSettings
}
}
export interface DiscordCommandContextValues {
message:Message;
client:Client;
realmSettings: RealmSettings;
}
And calling it like this:
var context = new DiscordCommandContext(options, {message:this.message, client:this.client, realmSettings: settings} );
I'm not sure if that's the right way or not... but it works.
I get tutorial from here : https://laravel-excel.maatwebsite.nl/docs/3.0/export/basics
<?php
...
use App\Exports\ItemsDetailsExport;
class ItemController extends Controller
{
...
public function exportToExcel(ItemsDetailsExport $exporter, $id)
{
//dd($id); I get the result
return $exporter->download('Summary Detail.xlsx');
}
}
My export like this :
<?php
namespace App\Exports;
use App\Repositories\Backend\ItemDetailRepository;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\Exportable;
use Illuminate\Support\Facades\Input;
class ItemsDetailsExport implements FromCollection
{
use Exportable;
protected $itemDetailRepository;
public function __construct(ItemDetailRepository $itemDetailRepository)
{
$this->itemDetailRepository = $itemDetailRepository;
}
public function collection()
{
$test = Input::get('id');
dd('yeah', $test);
}
}
I want to pass id parameter to export file. I try like that, but I don't get the id. The id is null
How can I solve this problem?
For passing data from controller to laravel excel function we can pass and use data like below
For example, we have to pass data year like 2019 we will pass like below
in controller
Excel::download(new UsersExport(2019), 'users.xlsx');
In laravel import file
class UsersExport implements FromCollection {
private $year;
public function __construct(int $year)
{
$this->year = $year;
}
public function collection()
{
return Users::whereYear('created_at', $this->year)->get();
}
}
you can refer all following official documentation link
https://docs.laravel-excel.com/3.1/architecture/objects.html#plain-old-php-object
Unfortunately you can't use normal dependency injection when you have a specific parameter. This is what you can do though:
class ItemsDetailsExport implements FromCollection
{
use Exportable;
protected $itemDetailRepository;
protected $id;
public function __construct(ItemDetailRepository $itemDetailRepository, $id)
{
$this->itemDetailRepository = $itemDetailRepository;
$this->id = $id;
}
public function collection()
{
$test = $this->id;
dd('yeah', $test);
}
}
Now the problem is that the container doesn't know how to resolve $id however there are two ways around this.
Manual passing of $id:
public function exportToExcel($id)
{
$exporter = app()->makeWith(ItemsDetailsExport::class, compact('id'));
return $exporter->download('Summary Detail.xlsx');
}
Route injection:
Define your route as:
Route::get('/path/to/export/{itemExport}', 'ItemController#exportToExcel');
In your RouteServiceProvider.php:
public function boot() {
parent::boot();
//Bindings
Route::bind('itemExport', function ($id) { //itemExport must match the {itemExport} name in the route definition
return app()->makeWith(ItemsDetailsExport::class, compact('id'));
});
}
Then your route method is simplified as:
public function exportToExcel(ItemsDetailsExport $itemExport)
{
//It will be injected based on the parameter you pass to the route
return $itemExport->download('Summary Detail.xlsx');
}
I am using Unity as IOC and trying to inject an interface with a factory method which takes a interface as a parameter.
For some reason the configReader parameter in the factory method GetTitleParser(), is null and not getting the injected ConfigurationReader() instance.
When i place a debug point at the line in RegisterTypes method where the new InjectionFactory exists, ITitleParser is not showing as mapped to a proper mapped type.
can anyone help what am i doing wrong here?
Here is my code:
public class UnityContainerBuilder
{
public static IUnityContainer Build()
{
var container = new UnityContainer();
RegisterTypes(container);
return container;
}
public static void RegisterTypes(IUnityContainer container)
{
// NOTE: To load from web.config uncomment the line below. Make sure to add a Microsoft.Practices.Unity.Configuration to the using statements.
container.LoadConfiguration();
container.RegisterType<IConfigurationReader, ConfigurationReader>();
container.RegisterType<ITitleParser>(new InjectionFactory(c => ParserFactory.GetTitleParser()));
}
}
public class ParserFactory
{
public static ITitleParser GetTitleParser(IConfigurationReader configReader=null)
{
if(configReader==null) configReader = new ConfigurationReader();
/* rest of code here...*/
return parser;
}
}
It works when i use the following code. Is this the right way to do this?
container.RegisterType<IConfigurationReader, ConfigurationReader>();
container.RegisterType<ITitleParser>(new InjectionFactory(c =>
{
var configReader = c.Resolve<IConfigurationReader>();
var parser = ParserFactory.GetTitleParser(configReader);
return parser;
}));
When you use default parameters it's equal to:
container.RegisterType<ITitleParser>(
new InjectionFactory(c => ParserFactory.GetTitleParser(null)));
Because, compiler inserts all default values in method calls (null in your case).
So, your code is valid:
container.RegisterType<ITitleParser>(new InjectionFactory(c =>
{
var configReader = c.Resolve<IConfigurationReader>();
var parser = ParserFactory.GetTitleParser(configReader);
return parser;
}));
But i advice you to remove default value to make code more expressive.
Your code is valid but maybe you can avoid messing up with InjectionFactory parameters and ParserFactory.
public class UnityContainerBuilder
{
public static IUnityContainer Build()
{
var container = new UnityContainer();
RegisterTypes(container);
return container;
}
public static void RegisterTypes(IUnityContainer container)
{
// NOTE: To load from web.config uncomment the line below. Make sure to add a Microsoft.Practices.Unity.Configuration to the using statements.
container.LoadConfiguration();
container.RegisterType<IConfigurationReader, ConfigurationReader>();
container.RegisterInstance<IAppConfig>(container.Resolve<IConfigurationReader>().ReadConfiguration());
container.RegisterType<ITitleParser, TitleParser>();
}
}
public class AppConfig: IAppConfig
{
public AppConfig(){}
//value1 property
//value2 property
//etc
}
public class ConfigurationReader: IConfigurationReader
{
public ConfigurationReader(){}
public IAppConfig ReadConfiguration(){
var currentConfig = new AppConfig();
//read config from file, DB, etc and init currentCongif
return currentConfig;
}
}
public class TitleParser : ITitleParser
{
public TitleParser(IAppConfif)
{
//config already readed, just do the work
}
}
I'm working on a plugin that does device detection based on an external library.
This is what I have so far:
class Deetector {
// public $return_data;
/**
* Constructor
*/
public function __construct()
{
$this->EE =& get_instance();
$this->EE->load->add_package_path(PATH_THIRD.'/deetector');
$this->EE->load->library('detector');
$this->return_data = "";
}
public function deetector()
{
return $ua->ua;
}
public function user_agent()
{
return $ua->ua;
}
// ----------------------------------------------------------------
/**
* Plugin Usage
*/
public static function usage()
{
ob_start();
$buffer = ob_get_contents();
ob_end_clean();
return $buffer;
}
}
If I call {exp:deetector} I get no output in the template. If I call {exp:deetector:user_agent} I get Undefined variable: ua.
Ultimately I don't plan on setting up different functions for each of the variables that the Detector library returns but am just trying to get it to output something at the moment.
I had originally started doing this as an extension which added the Detector library's variables to the global variables array and that was working fine; it's only since trying to do it as a plugin that I've run into problems.
You haven't set $this->ua to anything. I assume it's a variable of the detector library you loaded, so you probably want to do something like this:
class Deetector {
public function __construct()
{
$this->EE =& get_instance();
// remove this line, it's probably not doing anything
// $this->EE->load->add_package_path(PATH_THIRD.'/deetector');
$this->EE->load->library('detector');
// note you use $this->return_data instead of "return blah" in the constructor
$this->return_data = $this->EE->detector->ua;
}
// remove this, you can't have both __construct() and deetector(), they mean the same thing
// public function deetector()
// {
// return $ua->ua;
// }
public function user_agent()
{
return $this->EE->detector->ua;
}
}
UPDATE:
I took a look at the Detector docs, and it doesn't follow normal library conventions (it defines the $ua variable when you include the file). For that reason you should ignore the standard EE load functions, and include the file directly:
class Deetector {
public function __construct()
{
$this->EE =& get_instance();
// manually include the detector library
include(PATH_THIRD.'/deetector/libraries/detector.php');
// save the local $ua variable so we can use it in other functions further down
$this->ua = $ua;
// output the user agent in our template
$this->return_data = $this->ua->ua;
}
}