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Python_WEB/Try_Django

[Django]Complex Lookups

CodingEntrepreneurs Django 강의 정리

models>

from django.conf import settings
from django.db import models
from django.db.models import Q
from django.utils import timezone

# Create your models here.

User = settings.AUTH_USER_MODEL


class BlogPostQuerySet(models.QuerySet):
    def published(self):
        now = timezone.now()
        return self.filter(publish_date__lte=now)

    def search(self, query):
        lookup = (
            Q(title__icontains=query)
            | Q(content__icontains=query)
            | Q(slug__icontains=query)
            | Q(user__first_name__icontains=query)
            | Q(user__last_name__icontains=query)
            | Q(user__username__icontains=query)
        )

        return self.filter(lookup)


class BlogPostManager(models.Manager):
    def get_queryset(self):
        return BlogPostQuerySet(self.model, using=self._db)

    def published(self):
        return self.get_queryset().published()

    def search(self, query=None):
        if query is None:
            return self.get_queryset().none()
        return self.get_queryset().published().search(query)


class BlogPost(models.Model):  # blogpost_set -> queryset
    # id = models.IntegerField() # pk
    user = models.ForeignKey(User, default=1, null=True, on_delete=models.SET_NULL)
    image = models.ImageField(upload_to="image/", blank=True, null=True)
    title = models.CharField(max_length=120)
    slug = models.SlugField(unique=True)  # hello world -> hello-world
    content = models.TextField(null=True, blank=True)
    publish_date = models.DateTimeField(
        auto_now=False, auto_now_add=False, null=True, blank=True
    )
    timestamp = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)

    objects = BlogPostManager()

    class Meta:
        ordering = ["-publish_date", "-updated", "-timestamp"]

    def get_absolute_url(self):
        return f"/blog/{self.slug}"

    def get_edit_url(self):
        return f"{self.get_absolute_url()}/edit"

    def get_delete_url(self):
        return f"{self.get_absolute_url()}/delete"

 

view.html>

{% extends "base.html" %}

{% block content %}
<div class='row'>
    <div class='col-12 col-8 mx-auto'>
        {% if query %}

        <p class='lead'>You searched for {{ query }}</p>
        {% else %}

        <form class="form-inline my-2 my-lg-0" action='/search/'>
            <input class="form-control mr-sm-2" type="search" name='q' placeholder="Search" aria-label="Search">
            <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
        </form>


        {% endif %}


        {% for blog_item in blog_list %}

        {% include 'blog/list-inline.html' with blog_post=blog_item truncate=True detail=False %}
        {% endfor %}

    </div>
</div>
{% endblock %}

 

views>

from django.shortcuts import render

from blog.models import BlogPost

from .models import SearchQuery


def search_view(request):
    query = request.GET.get("q", None)
    user = None
    if request.user.is_authenticated:
        user = request.user
    context = {"query": query}
    if query is not None:
        SearchQuery.objects.create(user=user, query=query)
        blog_list = BlogPost.objects.search(query=query)
        context["blog_list"] = blog_list
    return render(request, "searches/view.html", context)

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