Web app

web_app/news/models.py

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+from django.db import models
+
+# Create your models here.
+class Urls(models.Model):
+    class STATUS_ENUM(models.TextChoices):
+        RAW = "raw"
+        ERROR = "error"
+        VALID = "valid"
+        UNKNOWN = "unknown"
+        INVALID = "invalid"
+        DUPLICATE = "duplicate"
+
+    url = models.TextField(unique=True)
+    ts_fetch = models.DateTimeField()
+    status = models.TextField(choices=STATUS_ENUM, default=STATUS_ENUM.RAW)  # This field type is a guess.
+
+    def __str__(self):
+        return self.url
+
+    class Meta:
+        managed = False
+        db_table = 'urls' # db_table = '{}_urls'.format(project_name)
+        ordering = ["-ts_fetch"]
+
+class Source(models.Model):
+    id = models.SmallAutoField(primary_key=True)
+    source = models.TextField(unique=True)
+
+    def __str__(self):
+        return self.source
+
+    class Meta:
+        managed = False
+        db_table = 'source'
+
+class UrlsSource(models.Model):
+    id_url = models.OneToOneField(Urls, models.DO_NOTHING, db_column='id_url', primary_key=True)  # The composite primary key (id_url, id_source) found, that is not supported. The first column is selected.
+    id_source = models.ForeignKey(Source, models.DO_NOTHING, db_column='id_source')
+
+    def __str__(self):
+        return "Source: {}, URL: {}".format(self.id_source, self.id_url)
+
+    class Meta:
+        managed = False
+        db_table = 'urls_source'
+        unique_together = (('id_url', 'id_source'),)