first commit

common/models.py

@@ -0,0 +1,128 @@
+from django.contrib import admin
+from django.db import models
+from django.utils import timezone
+
+from _helpers.utils import jalali_converter, generate_unique_slug
+
+
+class ObjectsQuerySet(models.QuerySet):
+    def deleted_objects(self):
+        return self.filter(is_deleted=True)
+
+    def available_objects(self):
+        return self.filter(is_deleted=False)
+
+    def active_objects(self):
+        return self.filter(is_active=True)
+
+    def inactive_objects(self):
+        return self.filter(is_active=False)
+
+
+class BaseModel(models.Model):
+    created = models.DateTimeField(auto_now_add=True, verbose_name="تاریخ ایجاد")
+    updated = models.DateTimeField(auto_now=True, verbose_name="تاریخ بروزرسانی")
+    is_active = models.BooleanField(default=True, verbose_name="فعال")
+    is_deleted = models.BooleanField(default=False, verbose_name="حذف شده")
+    deleted_at = models.DateTimeField(null=True, blank=True, verbose_name="تاریخ حذف")
+
+    objects = ObjectsQuerySet.as_manager()
+
+    class Meta:
+        abstract = True
+
+    def save(self, *args, **kwargs):
+        if self.is_deleted:
+            self.is_active = False
+        super(BaseModel, self).save(*args, **kwargs)
+
+    def delete(self, *args, **kwargs):
+        self.is_deleted = True
+        self.deleted_at = timezone.now()
+        self.save()
+
+    def hard_delete(self):
+        super().delete()
+
+    def jcreated(self):
+        return jalali_converter(self.created)
+
+    jcreated.short_description = "تاریخ ایجاد"
+
+    def jcreated_date(self):
+        return self.jcreated().split(',')[0]
+
+    jcreated_date.short_description = "تاریخ ایجاد"
+
+    def jupdated(self):
+        return jalali_converter(self.updated)
+
+    jupdated.short_description = "تاریخ بروزرسانی"
+
+    def jupdated_date(self):
+        return self.jupdated().split(',')[0]
+
+    jupdated_date.short_description = "تاریخ بروزرسانی"
+
+
+class SluggedModel(BaseModel):
+    slug = models.SlugField(max_length=100, unique=True, verbose_name="اسلاگ")
+
+    class Meta:
+        abstract = True
+
+    def save(self, *args, **kwargs):
+        if not self.slug:
+            if hasattr(self, 'name'):
+                self.slug = generate_unique_slug(self.name)
+            else:
+                self.slug = generate_unique_slug(str(self.created))
+        super(BaseModel, self).save(*args, **kwargs)
+
+
+class SelfParentModel(BaseModel):
+    parent = models.ForeignKey('self', related_name='children',
+                               on_delete=models.SET_NULL, null=True, blank=True, default=None,
+                               verbose_name='زیرشاخه')
+
+    class Meta:
+        abstract = True
+
+
+class NameSlugModel(SluggedModel):
+    name = models.CharField(max_length=100, verbose_name="نام")
+
+    class Meta:
+        abstract = True
+
+    def __str__(self):
+        return self.name
+
+
+class NameSlugAdminModel(admin.ModelAdmin):
+    prepopulated_fields = {'slug': ('name',)}
+
+    class Meta:
+        abstract = True
+
+
+class SelfParentNameSlugModel(SelfParentModel, NameSlugModel):
+    class Meta:
+        abstract = True
+
+
+class TagModel(SelfParentModel, NameSlugModel):
+    class Meta:
+        abstract = True
+        ordering = ['parent__id', 'name']
+
+    def __str__(self):
+        return self.name
+
+
+class TagAdminModel(admin.ModelAdmin):
+    fields = ['name', 'slug', 'parent', 'is_active']
+    list_display = ['name', 'slug', 'parent', 'is_active', 'is_deleted', 'jcreated']
+    list_filter = ['is_active', 'slug', 'parent', 'is_deleted']
+    search_fields = ['name', 'slug', 'parent__name']
+    prepopulated_fields = {'slug': ('name',)}