refactor: update default icon path in tool models and related logic

Author: liuruibin

apps/tools/migrations/0001_initial.py

@@ -57,7 +57,7 @@ class Migration(migrations.Migration):
                 ('code', models.CharField(max_length=102400, verbose_name='python代码')),
                 ('input_field_list', models.JSONField(default=list, verbose_name='输入字段列表')),
                 ('init_field_list', models.JSONField(default=list, verbose_name='启动字段列表')),
-                ('icon', models.CharField(default='/ui/favicon.ico', max_length=256, verbose_name='工具库icon')),
+                ('icon', models.CharField(default='', max_length=256, verbose_name='工具库icon')),
                 ('is_active', models.BooleanField(default=True)),
                 ('scope', models.CharField(choices=[('SHARED', '共享'), ('WORKSPACE', '工作空间可用'), ('INTERNAL', '内置')], default='WORKSPACE', max_length=20, verbose_name='可用范围')),
                 ('tool_type', models.CharField(choices=[('INTERNAL', '内置'), ('CUSTOM', '自定义')], db_index=True, default='CUSTOM', max_length=20, verbose_name='工具类型')),

apps/tools/models/tool.py

@@ -41,7 +41,7 @@ class Tool(AppModelMixin):
     code = models.CharField(max_length=102400, verbose_name="python代码")
     input_field_list = models.JSONField(verbose_name="输入字段列表", default=list)
     init_field_list = models.JSONField(verbose_name="启动字段列表", default=list)
-    icon = models.CharField(max_length=256, verbose_name="工具库icon", default="/ui/favicon.ico")
+    icon = models.CharField(max_length=256, verbose_name="工具库icon", default="")
     is_active = models.BooleanField(default=True)
     scope = models.CharField(max_length=20, verbose_name='可用范围', choices=ToolScope.choices,
                              default=ToolScope.WORKSPACE)

apps/tools/serializers/tool.py

@@ -326,7 +326,7 @@ def edit(self, instance, with_valid=True):
         def delete(self):
             self.is_valid(raise_exception=True)
             tool = QuerySet(Tool).filter(id=self.data.get('id')).first()
-            if tool.template_id is None and tool.icon != '/ui/favicon.ico':
+            if tool.template_id is None and tool.icon != '':
                 QuerySet(File).filter(id=tool.icon.split('/')[-1]).delete()
             QuerySet(WorkspaceUserResourcePermission).filter(target=tool.id).delete()
             QuerySet(Tool).filter(id=self.data.get('id')).delete()
@@ -426,10 +426,10 @@ def edit(self, with_valid=True):
             if tool is None:
                 raise AppApiException(500, _('Function does not exist'))
             # 删除旧的图片
-            if tool.icon != '/ui/favicon.ico':
+            if tool.icon != '':
                 QuerySet(File).filter(id=tool.icon.split('/')[-1]).delete()
             if self.data.get('image') is None:
-                tool.icon = '/ui/favicon.ico'
+                tool.icon = ''
             else:
                 meta = {
                     'debug': False