add slug field

qgis-app/plugins/migrations/0002_plugin_slug.py

@@ -0,0 +1,38 @@
+# Generated by Django 2.2.24 on 2021-09-24 02:10
+
+from django.db import migrations, models
+
+def default_slug(apps, schema_editor):
+    Plugin = apps.get_model('plugins', 'Plugin')
+    old_data = Plugin.objects.all()
+    for data in old_data:
+        data.slug = data.package_name
+        data.save(update_fields=['slug'])
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('plugins', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.SeparateDatabaseAndState(
+            database_operations=[
+                migrations.AddField(
+                    model_name='plugin',
+                    name='slug',
+                    field=models.CharField(default='', max_length=400, verbose_name='Slug'),
+                    preserve_default=False,
+                ),
+                migrations.RunPython(default_slug),
+            ],
+            state_operations=[
+                migrations.AlterField(
+                    model_name='plugin',
+                    name='slug',
+                    field=models.CharField(max_length=400, unique=True, verbose_name='Slug')
+                )
+            ],
+        )
+    ]

qgis-app/plugins/models.py

@@ -237,6 +237,13 @@ class Plugin (models.Model):
     # True if the plugin has a server interface
     server = models.BooleanField(_('Server'), default=False, db_index=True)
 
+    # slug
+    slug = models.CharField(
+        _('Slug'),
+        max_length=400,
+        unique=True,
+    )
+
     # Managers
     objects = models.Manager()
     base_objects = BasePluginManager()
@@ -350,9 +357,15 @@ def clean(self):
         """
         from django.core.exceptions import ValidationError
 
+        message = 'must start with an ASCII letter and can contain only ASCII letters, digits and the - and _ signs.'
+
         if not re.match(r'^[A-Za-z][A-Za-z0-9-_]+$', self.package_name):
             raise ValidationError(
-                _('Plugin package_name (which equals to the main plugin folder inside the zip file) must start with an ASCII letter and can contain only ASCII letters, digits and the - and _ signs.'))
+                _('Plugin package_name (which equals to the main plugin folder inside the zip file) ' + message))
+
+        if self.slug and not re.match(r'^[A-Za-z][A-Za-z0-9-_]+$', self.slug):
+            raise ValidationError(
+                _('Plugin slug (which will be in your Plugin URL) ' + message))
 
         if self.pk:
             qs = Plugin.objects.filter(
@@ -372,17 +385,29 @@ def clean(self):
             raise ValidationError(
                 _('A plugin with a similar package_name (%s) already exists (the package_name only differs in case).') % qs.all()[0].package_name)
 
+        if self.pk:
+            qs = Plugin.objects.filter(
+                slug__iexact=self.slug).exclude(pk=self.pk)
+        else:
+            qs = Plugin.objects.filter(slug__iexact=self.slug)
+        if qs.exists():
+            raise ValidationError(
+                _('A plugin with a similar slug (%s) already exists (the slug only differs in case).') % qs.first().slug)
+
     def save(self, keep_date=False, *args, **kwargs):
         """
         Soft triggers:
         * updates modified_on if keep_date is not set
+        * updates slug
         """
         if self.pk and not keep_date:
             import logging
             logging.debug('Updating modified_on for the Plugin instance')
             self.modified_on = datetime.datetime.now()
         if not self.pk:
             self.modified_on = datetime.datetime.now()
+        if not self.slug:
+            self.slug = self.package_name
         super(Plugin, self).save(*args, **kwargs)