[MOV] website_slides: move slide.embed model into its own file

As we are going to do some rework on the slide.embed feature, let's put the
model into its own python file.

Task-2654009

Part-of: odoo/odoo#77736

addons/website_slides/models/__init__.py

@@ -5,6 +5,7 @@ from . import ir_http
 from . import gamification_challenge
 from . import slide_slide
 from . import slide_question
+from . import slide_embed
 from . import slide_channel
 from . import slide_channel_tag
 from . import slide_slide_resource

addons/website_slides/models/slide_embed.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from werkzeug import urls
+
+from odoo import fields, models
+
+
+class EmbeddedSlide(models.Model):
+    """ Embedding in third party websites. Track view count, generate statistics. """
+    _name = 'slide.embed'
+    _description = 'Embedded Slides View Counter'
+    _rec_name = 'slide_id'
+
+    slide_id = fields.Many2one('slide.slide', string="Presentation", required=True, index=True)
+    url = fields.Char('Third Party Website URL', required=True)
+    count_views = fields.Integer('# Views', default=1)
+
+    def _add_embed_url(self, slide_id, url):
+        baseurl = urls.url_parse(url).netloc
+        if not baseurl:
+            return 0
+        embeds = self.search([('url', '=', baseurl), ('slide_id', '=', int(slide_id))], limit=1)
+        if embeds:
+            embeds.count_views += 1
+        else:
+            embeds = self.create({
+                'slide_id': slide_id,
+                'url': baseurl,
+            })
+        return embeds.count_views

addons/website_slides/models/slide_slide.py

@@ -56,30 +56,6 @@ class SlidePartnerRelation(models.Model):
             ('partner_id', 'in', self.partner_id.ids),
         ])._recompute_completion()
 
-class EmbeddedSlide(models.Model):
-    """ Embedding in third party websites. Track view count, generate statistics. """
-    _name = 'slide.embed'
-    _description = 'Embedded Slides View Counter'
-    _rec_name = 'slide_id'
-
-    slide_id = fields.Many2one('slide.slide', string="Presentation", required=True, index=True)
-    url = fields.Char('Third Party Website URL', required=True)
-    count_views = fields.Integer('# Views', default=1)
-
-    def _add_embed_url(self, slide_id, url):
-        baseurl = urls.url_parse(url).netloc
-        if not baseurl:
-            return 0
-        embeds = self.search([('url', '=', baseurl), ('slide_id', '=', int(slide_id))], limit=1)
-        if embeds:
-            embeds.count_views += 1
-        else:
-            embeds = self.create({
-                'slide_id': slide_id,
-                'url': baseurl,
-            })
-        return embeds.count_views
-
 
 class SlideTag(models.Model):
     """ Tag to search slides across channels. """