hw3-5

hw3
- Введены типы данных в models.py, сайт переписан под django модели
- DB переведена на PostgreSQL
- Переписан docker compose файл, настроены network и volume
- Добавлена команда генерации рандомных данных в db
hw4
- Добавлены формы login, signup, logout, profile
- Добавлены вопросы и ответы и их модели и формы
hw5
- Добавлена загрузка и отображение аватарок
- Добавлены лайки и дизайки, отметка правильного ответа

questions/models.py

@@ -1,3 +1,160 @@
 from django.db import models
+from django.contrib.auth.models import User
 
-# Create your models here.
+import uuid
+import os
+
+from .utils import crop_square
+
+
+def avatar_upload_path(instance, filename):
+
+    ext = filename.split('.')[-1]
+
+    filename = f"{uuid.uuid4()}.{ext}"
+
+    return os.path.join('avatars', filename)
+
+
+class Profile(models.Model):
+
+    user = models.OneToOneField(
+        User,
+        on_delete=models.CASCADE
+    )
+
+    avatar = models.ImageField(
+        upload_to=avatar_upload_path,
+        null=True,
+        blank=True
+    )
+
+    email = models.EmailField(unique=True)
+
+    nickname = models.CharField(max_length=100)
+
+    def __str__(self):
+        return self.user.username
+
+    def save(self, *args, **kwargs):
+
+        super().save(*args, **kwargs)
+
+        if self.avatar:
+            crop_square(self.avatar.path)
+
+
+class Tag(models.Model):
+
+    name = models.CharField(
+        max_length=50,
+        unique=True
+    )
+
+    def __str__(self):
+        return self.name
+
+
+class Question(models.Model):
+
+    title = models.CharField(max_length=50)
+
+    user = models.ForeignKey(
+        User,
+        on_delete=models.CASCADE
+    )
+
+    body = models.TextField()
+
+    rating = models.IntegerField(default=0)
+
+    tags = models.ManyToManyField(Tag)
+
+    created_at = models.DateTimeField(
+        auto_now_add=True
+    )
+
+    correct_answer = models.ForeignKey(
+        'Answer',
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        related_name='correct_for'
+    )
+
+    def __str__(self):
+        return self.title
+
+
+class QuestionReaction(models.Model):
+
+    question = models.ForeignKey(
+        Question,
+        on_delete=models.CASCADE,
+        related_name='reactions'
+    )
+
+    user = models.ForeignKey(
+        User,
+        on_delete=models.CASCADE
+    )
+
+    positive = models.BooleanField(default=True)
+
+    class Meta:
+        unique_together = ('question', 'user')
+
+    def __str__(self):
+
+        return (
+            "Reaction for "
+            + self.question.title
+            + " by "
+            + self.user.username
+        )
+
+
+class Answer(models.Model):
+
+    question = models.ForeignKey(
+        Question,
+        on_delete=models.CASCADE,
+        related_name='answers'
+    )
+
+    user = models.ForeignKey(
+        User,
+        on_delete=models.CASCADE
+    )
+
+    body = models.TextField()
+
+    rating = models.IntegerField(default=0)
+
+    def __str__(self):
+
+        return (
+            "Answer for "
+            + self.question.title
+            + " by "
+            + self.user.username
+        )
+
+
+class AnswerReaction(models.Model):
+
+    answer = models.ForeignKey(
+        Answer,
+        on_delete=models.CASCADE,
+        related_name='reactions'
+    )
+
+    user = models.ForeignKey(
+        User,
+        on_delete=models.CASCADE
+    )
+
+    positive = models.BooleanField(default=True)
+
+    class Meta:
+        unique_together = ('answer', 'user')