fetch – Page 2 – Tarik Billa

Handle a 500 response with the fetch api

June 14, 2023 by Tarik

Working Solution Combining then with catch works. fetch(‘http://some-site.com/api/some.json’) .then(function(response) { // first then() if(response.ok) { return response.text(); } throw new Error(‘Something went wrong.’); }) .then(function(text) { // second then() console.log(‘Request successful’, text); }) .catch(function(error) { // catch console.log(‘Request failed’, error); }); Details fetch() returns a Promise containing a Response object. The Promise can become either … Read more

Linq for NHibernate and fetch mode of eager loading

May 30, 2023 by Tarik

The new Linq provider does it a little differently: var customers = session.Query<Customer>().Fetch(c => c.Orders).ToList(); More here: http://mikehadlow.blogspot.com/2010/08/nhibernate-linq-eager-fetching.html

Core Data: Query objectIDs in a predicate?

May 26, 2023 by Tarik

A predicate like NSPredicate *predicate = [NSPredicate predicateWithFormat:@”NOT (self IN %@)”, arrayOfExcludedObjects]; where the entity of the fetch request is the entity of objects in the array, should do what you want. This can, of course be combined with other clauses in a single predicate for a fetch request. In general, object comparisons (e.g self … Read more

Trying to get property of non-object in [duplicate]

May 18, 2023 by Tarik

Check the manual for mysql_fetch_object(). It returns an object, not an array of objects. I’m guessing you want something like this $results = mysql_query(“SELECT * FROM sidemenu WHERE `menu_id`='”.$menu.”‘ ORDER BY `id` ASC LIMIT 1″, $con); $sidemenus = array(); while ($sidemenu = mysql_fetch_object($results)) { $sidemenus[] = $sidemenu; } Might I suggest you have a look … Read more

Hibernate fetching strategy – when to use “join” and when to use “select”?

May 13, 2023 by Tarik

Join is supposed to solve the n+1 problem. If you have 10 parents, each with 10 children, join will require one query and select will require 11 (one for the parents and one for the children of each parent). This may not be a big deal if the database is on the same server as … Read more

Getting error after I put Async function in useEffect

May 6, 2023 by Tarik

You’re returning the result of calling getResponse() from the useEffect function. If you return anything from useEffect, it has to be a function. Changing your code to this should fix it because you’re no longer returning anything from the useEffect function. useEffect(() => { getResponse(); }); The useEffect Cleanup Function If you return anything from … Read more

php pdo: get the columns name of a table

April 22, 2023 by Tarik

I solve the problem the following way (MySQL only) $q = $dbh->prepare(“DESCRIBE tablename”); $q->execute(); $table_fields = $q->fetchAll(PDO::FETCH_COLUMN);

django-orm case-insensitive order by

April 18, 2023 by Tarik

Since Django 1.8 it is possible with: from django.db.models.functions import Lower MyModel.objects.order_by(Lower(‘myfield’)) https://code.djangoproject.com/ticket/6498

Spring Data JPA And NamedEntityGraphs

April 1, 2023 by Tarik

We ran into a similar problem and devised several prospective solutions but there doesn’t seem to be an elegant solution for what seems to be a common problem. 1) Prefixes. Data jpa affords several prefixes (find, get, …) for a method name. One possibility is to use different prefixes with different named graphs. This is … Read more

GET with query string with Fetch in React Native

March 29, 2023 by Tarik

Your first thought was right: just add them to the URL. Remember you can use template strings (backticks) to simplify putting variables into the query. const data = {foo:1, bar:2}; fetch(`https://api.parse.com/1/users?foo=${encodeURIComponent(data.foo)}&bar=${encodeURIComponent(data.bar)}`, { method: “GET”, headers: headers, })