nezort11

Django validation

Important note: direct model instance manager.create()/save() doesn't validate (run instance.full_clean()). Only form validate instance (calls instance.full_clean()).

ModelForm validation process (Form + Model instance):

1. form.is_valid()
2. form.errors()
3. form.full_clean() - populate errors and cleanded_data

nezort11

Django ORM relations

• Directional
• Idirectional = Bidirectional
• Unidirectional

Relations

• ManyToOne (M:1) - PK/FK relation
• OneToMany (1:M) - no SQL (reversed M:1)

nezort11

Form and fields

form.fields: (BoundField) 1. form.visible_fields (BoundField) - not field.is_hidden 2. form.hidden_fields (BoundField) - field.is_hidden

form.iter = form.fields form.field_name = FloatField (UnBoundField)

nezort11

Django Project Patterns

Project development:

1. Describe
2. Design
3. Implement

What should be done for every Django/SPA project?

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How to connect back-end and front-end

Differ my data:

1. When data will come?
2. When data will be rendered?

Differ by purposes:

1. For development

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""" Custom serializer related field filtering based on request user.
"""

class Model1RelatedField(serializers.PrimaryKeyRelatedField):
    """Custom Model1 related field that filters queryset based on requesting user.
    It is REQUIRED for filter-based permission on related object.
    On needed for create and update actions bacause they choose form serializer related field..
    """

    def get_queryset(self):

nezort11

import { useCallback, useEffect, useMemo, useState } from 'react';
import { useDispatch } from 'react-redux';
import cn from 'clsx';

import { CrossIcon, ZeroGasIcon } from '@/assets/img';
import { Button, Loader, Typography } from '@/components';
import { useShallowSelector } from '@/hooks';
import { useTimeLeft } from '@/hooks/useTimeLeft';
import crowdSaleActionType from '@/store/crowdsale/actionTypes';
import { updateCrowdSaleOpenState } from '@/store/crowdsale/reducer';

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#!/usr/bin/env bash

PACKAGE_FILE="package.json"
PACKAGE_RUN_COMMAND="npm"
RUN_COMMAND="bash ${0}"
SCRIPT="$1"

# Check package manager
if [ -f "package-lock.json" ]; then
  PACKAGE_RUN_COMMAND="npm"

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import { S as P, i as V, s as R, C as K, a as U, c as M, b as k, G, H as x, I as j, g as Y, d as z, h as H, K as X, o as Q, P as Z, $ as p, Z as q, _ as J } from "./index.ff0009f4.js";
import { l as T, L as W, b as o, Q as N, S as d } from "./common-text.425980d7.js";
import { w as B, j as $ } from "./singletons.725ad3fb.js";
import { H as ee } from "./control.f5b05b5f.js";
function te(e) {
  let t, r;
  const a = e[4].default,
    i = K(a, e, e[3], null);
  return {
    c() {

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var productCardList = document.querySelector('.product-card-list');

var productCards = Array.from(productCardList.querySelectorAll('.product-card'));

var gerProductCardRatingCount = (productCard) => {
  const productCardRatingCountDigits = productCard.querySelector('.product-card__count')?.innerText.match(/\d/g) || ['0'];
  return Number(productCardRatingCountDigits.join(''));
}

productCards.sort((productCard1, productCard2) => {