Category "model"

Django superuser doesn't have permission to delete models

I am working on upgrading a Django website from Django 1.8 to Django 2.2 and have come across a problem when trying to delete an object from the Django admin ch

How to create one PredictEnginePool which serves multiple models?

My project is an online foods order app, the key feature of this app is the "Daily nutrients intake monitor". This monitor shows the differences of daily intake

Newbie SwiftUI Nested array

Please help me display my model data from api I have a nested json data response and Have a swiftui model as below ****************************MyData model stru

How to load a pre-trained Word2vec MODEL File and reuse it?

I want to use a pre-trained word2vec model, but I don't know how to load it in python. This file is a MODEL file (703 MB). It can be downloaded here:http://dev

django update_or_create gets "duplicate key value violates unique constraint "

Maybe I misunderstand the purpose of Django's update_or_create Model method. Here is my Model: from django.db import models import datetime from vc.models imp

Solving coupled differential equations with sympy

I am trying to solve the following system of first order coupled differential equations: - dR/dt=k2*Y(t)-k1*R(t)*L(t)+k4*X(t)-k3*R(t)*I(t) - dL/dt=k2*Y(t)-k1*

Adding scope to get objects in reverse order of their created time in rails

I'm new to Ruby on rails and programming. I am working on a exercise where I have a Post model,and I need to add a new scope to it to retrieve its objects in re

django temporarily disable signals

I have a signal callback in django: @receiver(post_save, sender=MediumCategory) def update_category_descendants(sender, **kwargs): def children_for(cat

SysML FlowProperties and FlowSpecification in Enterprise Architect (9.3)

I'm trying to define a SysML FlowSpecification and add FlowProperties to it. I can't find any specific way to add flow properties and the standard add Property

How to query database by id using SqlAlchemy?

I need to query a SQLAlchemy database by its id something similar to User.query.filter_by(username='peter') but for id. How do I do this? [Searching over Googl

Yii model to array?

How can I convert the result of Trips::model()->findAll() to an array?