In my CakePHP 4 project, I have two models with a one-to-many relationship between them: <?php namespace AppModelTable; use CakeORMTable; class ContentsTable extends Table { public function initialize(array $config): void { parent::initialize($config); $this->setTable('contents'); $this->setPrimaryKey('id'); // more relations here $this->belongsTo('ContentTypes', […
This Django ORM statement: Model.objects.all() .annotate( ord=Window( expression=RowNumber(), partition_by=F('related_id'), order_by=[F("date_created").desc()] ) ) .filter(ord=1) .filter(date_created__lte=some_datetime) Leads to the following SQL query: SELECT * FROM ( SELECT id, related_id, values, date_created ROW_NUMBER() OVER ( PARTITION BY related_id ORDER BY date_created DESC )…
I am at the moment calling a few nested relations. But what I am trying to do is to get all the columns with the same "measured_at" date in one array instead of them being spread. A brief example of…
items = Items.objects.filter(active=True) price_list = [] for item in items: price = Price.objects.filter(item_id = item.id).last() price_list.append(price) Price model can have multiple entry for single item, I have to pick last element. How can we optimize above query to avoid use…
I have two tablse with different structure: contents folders I need getting data from two tables with pagination, sorting and filter. I know only about this way like getting two tables in 2 operations. Is it possible union these tables…
How do I get a queryset of specific child classes? It doesn't look like going through related_name is the answer. Using Django 3.2.6 btw. Here is my setup: class Quiz(models.Model): name = # char field class Question(models.Model): # a quiz…
for the current project that I am going to work on, I need to create many entities using the make:entity command. Each time a new entity is created it needs to have the following columns that need to be defined…
Alright, this might have been asked quite a lot of times but none of them gives me a solution. Here's my schema. { "_id" : ObjectId("23453453453453"), "title": "Item 01" "checkList" : [ { "ch_id" : "621eff4e0ed5c751adaa42fb", "status" : "statu", "dateMonthYear"…
I've got a function which interacts with a postgres DB. The function takes a parameter called pagination_data_required (boolean). If pagination_required is set to true, the function executes a query as well as a query.count() which according to the documentation docs.peewee…
I am very new to the laravel subqueries , i am trying to fetch another table data but it's showing an following error SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the…