I have an API like example
I have used cakephp HTTP client to get data, below my attempted code
public index()
{
$http = new Client();
$response = $http->get('https://restcountries.eu/rest/v2/all');
// $json = $response->getJson(); //also tried usgin json
$countries = $this->paginate($response);
$this->set(compact('countries '));
}
I am trying to apply pagination with this country data then fetch it in view with pagination.
After tried above code , I have gotten below error
Argument 1 passed to Cake\Datasource\Paginator::extractData() must be an instance of Cake\Datasource\RepositoryInterface, instance of Cake\Http\Client\Response given, called in \myapp\vendor\cakephp\cakephp\src\Datasource\Paginator.php on line 176
How can I get my desire result ?
You have probably need to implement a class who extend RepositoryInterface.
class JsonSource implements Cake\Datasource\RepositoryInterface
{ ... }
public index() {
$http = new Client();
$response = $http->get('https://restcountries.eu/rest/v2/all');
$src = new JsonSource();
$src->fromResponse($response);
$countries = $this->paginate($src);
$this->set(compact('countries ')); }
Is a bit tedious, because you need to define Json like a datasource.
The default pagination only supports querying tables (repositories), or operating on pre-built query instances.
To extend on #Zeppi's answer. You basically have three somewhat straightforward options here:
Create custom query/repository implementations as hinted by #Zeppi.
This can indeed be quite a lot of work though, so you might want to look into alternatively implementing it with the help of plugins, for example muffin/webservice, which does most of the hard work of implementing the required interfaces.
Or create a custom paginator that actually accepts and works on array data.
Or use what is widely know as a "datatable", that is a JavaScript based table in the frontend that paginates the data, for example jQuery DataTables.
Related
Hi i am working on a project in laravel 7.0, in back-end i have a table called Posts which contains 2 text language input one in french and the other is arabic added by the back-end application.
what i am trying to do is when the user uses the French Language i want the title_fr to be displayed on the view and same thing in Arabic language the title should be title_ar.
P.S data are stored in French and Arabic
I have tried the similar solution given in an other similar question but none of it worked in my case!
Any idea how i might get this to work ?
Thanks in advance.
You can do something similar to below. We have a model Post, this model has an attribute title. I also assume that you have an attribute that will return user's language from the User model.
class Post extends Model
{
public function getTitleAttribute(): string
{
return Auth::user()->language === 'fr' ? $this->title_fr : $this->title_ar;
}
}
FYI above is just a demo on what can be done. For a full blow solution I would recommend decorator pattern.
Also it might be worth considering using morph for things like that. You can have a service provider that will initiate the morph map for you post model relevant to the language that user has, I.e.
Class ModelProvider {
Protected $models = [
‘fr’ => [
‘post’ => App/Models/Fr/Post::class,
],
‘ar’ => [
‘post’ => App/Models/Ar/Post::class,
]
];
Public function boot() {
$language = Auth::user()->Settings->language;
Relation::morphMap($This->models[$language]);
}
}
Afterwards you just need to call to Relation::getMorphModel(‘post’) to grab Post class that will return correct language.
I.e. App/Models/Fr/Post can have a an attribute title:
Public function getTitleAttribute(): string {
Return $this->title_fr;
}
For example above you would also want to utilise interfaces to make sure that all models follow the same contract, something below would do the trick:
Interface I18nPostInterface {
Public function getTitleAttribute(): string
}
Also, depending on the database you use, to store titles (and other language data) in a JSON format in the database. MySQL 8 has an improve support for JSON data, but there are limitations with that.
So I was Able to fetch data from my database based on the Language selected by the user.
Like i said before I have a table called Posts and has columns id,title_fr and title_ar. I am using laravel Localization.
Inside my PostController in the index function i added this code:
public function index()
{
//
$post = Post::all();
$Frtitle = post::get()->pluck('title_fr');
$Artitle = post::get()->pluck('title_ar');
return view('post.index',compact('post','Frtitle','Artitle'));
}
if anyone has a better way then mine please let me know, i am sure
there is a better way.
I working on an application that has its own database and gets user information from another serivce (an LDAP is this case, through an API package).
Say I have a tables called Articles, with a column user_id. There is no Users table, instead a user or set of users is retrieved through the external API:
$user = LDAPConnector::getUser($user_id);
$users = LDAPConnector::getUsers([1, 2, 5, 6]);
Of course I want retrieving data from inside a controller to be as simple as possible, ideally still with something like:
$articles = $this->Articles->find()->contain('Users');
foreach ($articles as $article) {
echo $article->user->getFullname();
}
I'm not sure how to approach this.
Where should I place the code in the table object to allow integration with the external API?
And as a bonus question: How to minimise the number of LDAP queries when filling the Entities?
i.e. it seems to be a lot faster by first retrieving the relevant users with a single ->getUsers() and placing them later, even though iterating over the articles and using multiple ->getUser() might be simpler.
The most simple solution would be to use a result formatter to fetch and inject the external data.
The more sophisticated solution would a custom association, and a custom association loader, but given how database-centric associations are, you'd probably also have to come up with a table and possibly a query implementation that handles your LDAP datasource. While it would be rather simple to move this into a custom association, containing the association will look up a matching table, cause the schema to be inspected, etc.
So I'll stick with providing an example for the first option. A result formatter would be pretty simple, something like this:
$this->Articles
->find()
->formatResults(function (\Cake\Collection\CollectionInterface $results) {
$userIds = array_unique($results->extract('user_id')->toArray());
$users = LDAPConnector::getUsers($userIds);
$usersMap = collection($users)->indexBy('id')->toArray();
return $results
->map(function ($article) use ($usersMap) {
if (isset($usersMap[$article['user_id']])) {
$article['user'] = $usersMap[$article['user_id']];
}
return $article;
});
});
The example makes the assumption that the data returned from LDAPConnector::getUsers() is a collection of associative arrays, with an id key that matches the user id. You'd have to adapt this accordingly, depending on what exactly LDAPConnector::getUsers() returns.
That aside, the example should be rather self-explanatory, first obtain a unique list of users IDs found in the queried articles, obtain the LDAP users using those IDs, then inject the users into the articles.
If you wanted to have entities in your results, then create entities from the user data, for example like this:
$userData = $usersMap[$article['user_id']];
$article['user'] = new \App\Model\Entity\User($userData);
For better reusability, put the formatter in a custom finder. In your ArticlesTable class:
public function findWithUsers(\Cake\ORM\Query $query, array $options)
{
return $query->formatResults(/* ... */);
}
Then you can just do $this->Articles->find('withUsers'), just as simple as containing.
See also
Cookbook > Database Access & ORM > Query Builder > Adding Calculated Fields
Cookbook > Database Access & ORM > Retrieving Data & Results Sets > Custom Finder Methods
I have seen 100 examples of passing an ID into $resource.get() in order to query information out of a back-end in Angular. What I have not been able to find is how to pass a complex object.
If I have a table of objects to return, and I wish to run a search against them using multiple items of filter, I need to pass those items as parameters or as one complex parameter. For example, say I have a table of people's names and their cities, states, etc. I want to be able to say something like this:
var myResource = $resource(url);
myResource.get({name : "Mike", state : "Texas"});
The return may be a single row or multiple rows. But the point is how do I get the parameters off to the API call?
The way I have other methods set up that are simpler is by creating a repository in which I return like so:
return resource('/api/broker/productionInfo/');
Then in my API I do this (after the [RoutePrefix("api/broker")] setup:
[HttpGet]
[Route("productionInfo")]
public IHttpActionResult GetProductions()
{}
That's all awesome but I want to be able to add the search criteria in the repository call and then in the API method (i.e. extract from a querystring or however it is to be passed).
If I understand what you are asking correctly, you just want to pass additional parameters into an angular resource get request. It is as simple as what you have already suggested:
resource.get({id: 1, custom_param_1: "param1", custom_param_2: "param2"});
This would result in an http request that looks like this:
/resource/1?custom_param_1=param1&custom_param_2=param2
You can then extract these parameters on the API side of things.
Something to note is that get requests have a maximum length, and if you are attaching lots of different parameters to the request, it may be better to use a post or put instead.
The only thing I'm seeing that you're missing is a [FromUri] decorate attribute, in your GetProduction API method. Since Get supports only params binding through a query string (no body binding).
Your params:
options: {
StartDate: _startDate
EndDate: _endDate
TextSearch: "some search query....",
Page: 1,
PageSize: 25,
et...
}
Then, calling your repository from your controller:
repository.get(options).$promise.then(function (data) {
// data = response payload from backend
});
reposiroty
....
return resource('/api/broker/productionInfo/');
....
API
[HttpGet]
[Route("productionInfo")]
public IHttpActionResult GetProductions([FromUri] SearchCriteriaModel criteria) {
....
}
Hope that helps.
I have read and worked with the other posts about this and it appears the version of Laravel 4 I just downloaded has more changes made to the way the JSON input is handled by a controller.
$input = Input::json()->all(); gives me errors as if I am referring to something that does not exist when I request some part of the payload after doing a PUT request. And without ->all(); I get a symfony error.
Does anyone know how to get good JSON from backbone in Laravel 4's latest version?
Currently, I am doing the long way around to get my data, ie:
$input_title = Input::get('title');
$input_completed = Input::get('completed');
$task = Task::find($id);
$task->title = $input_title;
$task->completed = $input_completed;
$task->save();
Yes, I am doing the tutorial on tutsplus to learn laravel/backbone, so a little noob patience is apreciated.
The error I get when using Input::get(); is:
{"error":{"type":"UnexpectedValueException","message":"The Response content must be a string or object implementing __toString(), \"array\" given.","file":"/Users/brentlawson23/Sites/laravel4App/bootstrap/compiled.php","line":16858}}
I really want to get the Laravel-specific answer instead of using straight php to stringify the payload.
I get same error using just Input::json();
For the current beta of Laravel 4, Input::json(); is not getting a stringified version of the request payload that can be used to create a new row in a table, nor does Input::json()->all(); (hoping to play nice with the ParameterBag from symfony). I have tried json_encode among other hacks and basically every step of the way in this tut, I hit some brick wall. Anyone have a suggestion based on what I have presented here?
Today I got this when simply trying to echo the result of $input = Input::json(); :
{"error":{"type":"ErrorException","message":"Catchable Fatal Error: Object of class Symfony\Component\HttpFoundation\ParameterBag could not be converted to string in /Users/brentlawson23/Sites/laravel4App/app/controllers/TasksController.php line 45","file":"/Users/brentlawson23/Sites/laravel4App/app/controllers/TasksController.php","line":45}}
Yes, I have studied the Symfony API.
I had a similar problem. Input from Backbone is converted to array in Laravel. On tutsplus, Jeffrey Way is using object. So I was trying to do this (like in tutorial):
return $input->title // using object,but got an error.
If I change that line to:
return $input["title"] // everything works fine with array.
I'm also working through the Backbone tutorial on tuts+. If I'm right in assuming are you stuck on the Creating New Contacts section? Below is how I got it to work for me, in ContactController.php:
public function store()
{
$input = Input::all();
Contact::create(array(
'first_name' => $input['first_name'],
'last_name' => $input['last_name'],
'email_address' => $input['email_address'],
'description' => $input['description']
));
}
And then also needed to update app/models/Contact.php with the below:
class Contact extends Eloquent {
protected $fillable = array('first_name', 'last_name', 'email_address', 'description');
}
That should get it working for you and insert the contact into the database. If I've misread let me know and I can have another look.
Cheers,
Sean
I am trying to set up cakephp to work with the very nice javascriptMVC (http://forum.javascriptmvc.com). JavaScriptMVC requires the JSON-Output in the following format:
[{
'id': 1,
'name' : 'Justin Meyer',
'birthday': '1982-10-20'
},
{
'id': 2,
'name' : 'Brian Moschel',
'birthday': '1983-11-10'
}]
Cake would generate a deeper nested array with a prepended Class Name. I found attempts to solve the problem but theyre not for cakephp 2.x. I know that I can simply generate a new array and json_encode() it via php, but it would be nicer to include a function like this https://gist.github.com/1874366 and another one to deflatten it.
Where would be the best place to put such functions? The AppController doesnt seem to work. Should i put it in beforeRender () or beforeFilter() of the controller? Or does someone maybe even know of an existing solution/plugin for this? This would be the best for me in my current Situation, as Im pretty much pressed for time.
Ok, I'm not 100% sure I understand what you are trying to do so here's a word to the wise just in case: Cake and JMVC are both comprehensive MVC frameworks. if you are attempting to combine them as a single cohesive platform to build your application, I strongly suggest you review your approach / platform / etc.
Also -- I'm not an expert by any means in jmvc, so I'm just going to pretend that processing the response from Cake in jmvc is completely out of the question, for some odd reason. For the record, think of Cake's responses like this:
{ "Model" :
[{
'id': 1,
'name' : 'Justin Meyer',
'birthday': '1982-10-20'
},
{
'id': 2,
'name' : 'Brian Moschel',
'birthday': '1983-11-10'
}]
}
Cake has had comprehensive REST service support, since at least Cake 1.2. The lib you are interested in is HttpSocket. As for json encoding and serving response, Request Handling covers, among other things, responding to all manners of requests, content types, decoding and encoding json, etc. Finally, the built-in Set utility will almost certainly cover whatever array manipulation you need in a line or two.
The functionality you are interested in is pretty basic and hasn't changed too much. I'd bet a lot of the (reasonably simple) solutions you have already found would probably still work, maybe with a little bit of tweaking.
For pretty much any basic service endpoint, you would probably create a controller (not AppController - that is application-wide, hence you can't invoke it directly) method, considering Cake routes the controller/action into your url:
Cake consuming services from a different app would look like this:
http://cakeproject/collect/getInfo
class CollectController extends AppController {
public function getInfo($array = null) {
App::uses('HttpSocket', 'Network/Http');
$http = new HttpSocket();
$http->get('http://jmvcproject/controller/action', $array);
// ...etc.
}
Cake providing services from the same controller / action to a different app would simply be:
public function getInfo($array = null) {
$results = $this->Collect->find('all', $array);
// ...fetch the results
}
Or you could just loop over that array with foreach($this->data as $data) { ... to drop the class name. But if your data will include associated models, etc, Set is probably the most versatile and resilient solution.
Anyway, HTH