logo
down
shadow

Angular: Class with Array of Foreign Keys


Angular: Class with Array of Foreign Keys

By : Mayur Gulve
Date : September 01 2020, 03:00 PM
this will help I've built the class "meal" with two properties like in the tour of heroes tutorial from angular: , You could associate a type to mealPlan like this:
code :
export class Mealplan {
  weekId: number;
  mealPlan: [Meal, Meal, Meal, Meal, Meal];
}

let plan = new MealPlan();
plan.mealPlan = [new Meal(),new Meal(),new Meal(),new Meal()];

let plan = new MealPlan();
plan.mealPlan = [new Meal(),new Meal(),new Meal(),new Meal(), new Meal()];


Share : facebook icon twitter icon
How to output an array based on primary keys and foreign keys

How to output an array based on primary keys and foreign keys


By : user134331
Date : March 29 2020, 07:55 AM
may help you . Considering this array
code :
<?php

$array = Array(
    array('id' => 51, 'category_id' => 37, 'title' => 'Sims'),
    array('id' => 37, 'category_id' => 26, 'title' => 'Blackberry'),
    array('id' => 26, 'category_id' => 0, 'title' => 'Mobile Device'));

// First build an associative array ID->Object
$map = array();
foreach( $array as $value )
{
  $map[$value['id']] = $value;
}

// Then build your path
$path = array();
$value = $array[0];
while( true )
{
    $path[] = $value['title'];
    if( $value['category_id'] == 0 )
    {
        break;
    }
    $value = $map[$value['category_id']];
    if( !isset($value) )
    {
        die("Data Inconsistency");
    }
}


// Display path
echo implode(array_reverse($path), ' > ');

?>
Error updating foreign keys in MYSQL database where wrong option data from select boxes is used to update foreign keys

Error updating foreign keys in MYSQL database where wrong option data from select boxes is used to update foreign keys


By : Sukunj Mendpara
Date : March 29 2020, 07:55 AM
this one helps. There are HTML coding problem like
Symfony2. When using querybuilder on entity with foreign keys, how to return values of foreign keys as sequence of ids?

Symfony2. When using querybuilder on entity with foreign keys, how to return values of foreign keys as sequence of ids?


By : Tarupreet Kaur Hansp
Date : March 29 2020, 07:55 AM
this one helps. I have query in my repository, that returns array result: , You can use a filter to preserve your original data like
code :
$scope.toArray = function(groupsAsObjects) {
    var groups = [];
    angular.forEach(groupsAsObjects, function(group) {
        groups.push(group.id);
    });
    return groups;
};
<span
    data-pk="{{ user.id }}"
    editable-checklist="user.groups | toArray"
    e-ng-options="g.id as g.name for g in groups"
    e-form="rowform">
    {{ User.showGroups(user) }}
</span>
$scope.toArray = function(obj, addKey) {
    if (!obj)
        return obj;
    if (addKey === false) {
        return Object.keys(obj).map(function(key) {
            return obj[key];
        });
    } else {
        return Object.keys(obj).map(function(key) {
            return Object.defineProperty(obj[key], '$key', {
                enumerable: false,
                configurable: true,
                value: key
            });
        });
    }
};
Is there a term for logical foreign keys that aren't defined as foreign keys in the database?

Is there a term for logical foreign keys that aren't defined as foreign keys in the database?


By : Graham Traas
Date : March 29 2020, 07:55 AM
help you fix your problem "Fake" might get the point across more clearly, or, since foreign keys are a type of constraint, calling it "unenforced" would be more idiomatic.
Limit number of foreign keys based on how many foreign keys refer to that model in Django?

Limit number of foreign keys based on how many foreign keys refer to that model in Django?


By : Adam Holovics
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Using pre_save signal, whenever you try creating a new Resident instance, you can first check the total number of available beds in the room at where the resident will stay:
Related Posts Related Posts :
  • How to update all ionic cordova plugin at one command in Ionic-V4
  • How to give dynamics values for [routerLink] which it corresponds to values of an array?
  • Add and delete item from an array
  • How to unit test a button within an ngfor
  • How to launch a method after a cell value has been edited in ag-grid?
  • Can't select individual user accounts when creating a new Asp.Net Core 2.1 Angular project in Visual Studio 2019
  • How do I get the response code in angular 7
  • Angular PrimeNg: p-table not detected using @ViewChild
  • How to route within the tab component in ionic
  • How can i combine data from two API's into datasource
  • Find the last index from the array using ngFor
  • ngSelect always return undefined
  • Nested Forms in Angular Material Stepper trigger a ExpressionChangedAfterItHasBeenCheckedError
  • Angular library dependency exposure
  • Handling errors with RxJS and Angular async pipe
  • Kubernetes internal CORS issues between services
  • Ionic set marker on location or based on longitude and latitude
  • CAN NOT expand Angular Material table
  • Share a angular library across multiple projects
  • How to import pipe to 2 modules(AppModule and ChildModule)?
  • How to disable the drag option on Angular material Slide toggle component
  • Does Spartacus support Hybris on-premise?
  • Bind regular expression from json to typescript
  • How can i get the selected value in ion-alert radio alert
  • How to get all attributes of an object
  • Using angular elements inside the same angular project
  • RxJS assign observable and get data in one stream
  • Why I can not use anguar/material elements?
  • Getting Error when running 'ng test' Command
  • How can I make another request within catchError?
  • angular 7 input number validation
  • Dont show digits after decimal using angular pipe
  • How to use same component in normal way and with angular material dialog both?
  • How to integrate ReSharper with WebStorm
  • Google cloud application yaml for angular 7
  • How to perform concurrent HTTP requests on rows of a table
  • Angular 7 - deploy workspace applications (projects) in isolation
  • how to turn off differential loading in Angular v8?
  • How to add and update npm packages for a new Angular app in Visual Studio 2019
  • Angular 7, Ngrx, Rxjs 6 - Accessing state between lazy loaded modules
  • cannot find symbol import com.google.firebase.iid.FirebaseInstanceIdService error in ionic3
  • AWS CodePipeline, build failed and getting error
  • CORS problem with Angular and laravel even after setting the CORS header and server response
  • Angular, when the variable is mentioned in the url, the variable is not replaced with its value. Ex: ${username}
  • How to apply two ngIf on single html element with two different conditions
  • Ionic not importing ngx-mathjax module
  • How to display base64 image on iPhone in Ionic 4
  • ngFor in columns with diferents properties
  • How catch the http errors with map
  • How to format a Date field in Angular project
  • focusing ng-select filter input on drop down open
  • Angular 7 PDFJS Component
  • NestJs Errors stemming from @types dependencies in node_modules when running start:prod on fresh project
  • How to override ion-back-button action in ionic 4 with angular 7
  • How can I have an array in input form?
  • Angular 6 component test with a variable into HTML
  • Why is ES7/array polyfill needed despite the tsconfig target is set to ES5
  • How to deal with Google recaptcha backend validation response delay
  • Logging in using @angular/fire/auth results in 403 error on localhost
  • In Angular, with ViewChild/ ViewChildren, how do I get the child of a child?
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk