feat: added print_count api, added merchant setting model, added manual mode setting for purchase order

basic_info/admin.py

@@ -38,6 +38,21 @@ class QuickInputAdmin(admin.ModelAdmin):
     list_filter = ('group',)
 
 
+@admin.register(models.MerchantSetting)
+class MerchantSettingAdmin(admin.ModelAdmin):
+    list_display = (
+        'merchant', 'key', 'value', 
+        'type', 'val_str', 'val_int', 
+        'val_float', 'val_bool', 'description',
+    )
+    list_filter = ('merchant', 'type')
+    search_fields = ('merchant__name', 'key', 'description')
+
+    @admin.display(description='设置值')
+    def _value(self, obj):
+        return obj.value()
+
+
 @admin.register(models.UserProfile)
 class UserProfileAdmin(AdminBase):
     list_display = ('user', 'merchant')