Split EditView into get and create methods

wagtail/admin/views/pages/edit.py

@@ -87,7 +87,9 @@ class EditView(TemplateResponseMixin, ContextMixin, View):
 
         self.errors_debug = None
 
-        if self.request.method == 'GET':
+        return super().dispatch(request)
+
+    def get(self, request):
         if self.page_perms.user_has_lock():
             if self.page.locked_at:
                 lock_message = format_html(_("<b>Page '{}' was locked</b> by <b>you</b> on <b>{}</b>."), self.page.get_admin_display_title(), self.page.locked_at.strftime("%d %b %Y %H:%M"))
@@ -134,10 +136,20 @@ class EditView(TemplateResponseMixin, ContextMixin, View):
                         _("This page is awaiting <b>'{}'</b> in the <b>'{}'</b> workflow."),
                         task.name, workflow.name
                     )
-                    messages.error(self.request, mark_safe(workflow_info + " " + _("Only reviewers for this task can edit the page.")),
+                messages.error(
-                                   extra_tags="lock")
+                    self.request, mark_safe(workflow_info + " " + _("Only reviewers for this task can edit the page.")),
+                    extra_tags="lock"
+                )
 
-        if self.request.method == 'POST':
+        self.form = self.form_class(instance=self.page, parent_page=self.parent)
+        self.has_unsaved_changes = False
+        self.edit_handler = self.edit_handler.bind_to(form=self.form)
+        self.add_legacy_moderation_warning()
+        self.page_for_status = self.get_page_for_status()
+
+        return self.render_to_response(self.get_context_data())
+
+    def post(self, request):
         self.form = self.form_class(
             self.request.POST, self.request.FILES, instance=self.page, parent_page=self.parent
         )
@@ -402,9 +414,6 @@ class EditView(TemplateResponseMixin, ContextMixin, View):
                 ])
             )
             self.has_unsaved_changes = True
-        else:
-            self.form = self.form_class(instance=self.page, parent_page=self.parent)
-            self.has_unsaved_changes = False
 
         self.edit_handler = self.edit_handler.bind_to(form=self.form)
         self.add_legacy_moderation_warning()