Add: PostFileModel in files app

backend/apps/files/models.py

@@ -1,4 +1,54 @@
+import mimetypes
 from django.db import models
 
-# Create your models here.
 
+def get_upload_to(instance, filename, folder):
+    return f"{folder}/{instance.hash_blake3[:2]}/{instance.hash_blake3[2:4]}/{filename}"
+
+
+def get_upload_to_posts(instance, filename):
+    return get_upload_to(instance, filename, "posts")
+
+
+class FileNameModel(models.Model):
+    filename = models.CharField(max_length=512)
+
+    date_created = models.DateTimeField(auto_now_add=True)
+    date_modified = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        verbose_name = "File Name"
+        verbose_name_plural = "File Names"
+
+    def __str__(self):
+        return str(self.filename)
+
+
+class PostFileModel(models.Model):
+    name = models.ManyToManyField(to=FileNameModel, related_name="post_files")
+    file = models.FileField(upload_to=get_upload_to_posts, blank=True)
+    # Hash for file identification (blake3 is used for deduplication)
+    hash_blake3 = models.CharField(max_length=128)
+    hash_md5 = models.CharField(max_length=32)
+    hash_sha1 = models.CharField(max_length=40)
+    hash_sha256 = models.CharField(max_length=64)
+    hash_sha512 = models.CharField(max_length=128)
+
+    # Image Blur Hash for preview presentation
+    blur_hash = models.CharField(max_length=32)
+    # If file has width and hight save it.
+    hight = models.IntegerField(null=True)
+    width = models.IntegerField(null=True)
+
+    mimetype = models.CharField(max_length=256, blank=True)
+
+    extension = models.CharField(max_length=64, blank=True)
+
+    manual_added = models.BooleanField(default=False)
+
+    class Meta:
+        verbose_name = "Post File"
+        verbose_name_plural = "Post Files"
+
+    def __str__(self):
+        return str(self.name.first())