添加util.flask；video_clip编辑逻辑

controller/api/workflow_blueprint.py

@@ -3,6 +3,7 @@ import threading
 from flask import Blueprint, jsonify
 
 from model.Workflow import Workflow
+from util.flask import not_found_json_response
 from workflow.worker import do_workflow
 from model import db
 
@@ -18,18 +19,36 @@ def get_workflow_list():
 @blueprint.get("/<int:workflow_id>")
 def get_workflow_info(workflow_id):
     workflow = Workflow.get(workflow_id)
+    if workflow is None:
+        return not_found_json_response(id=workflow_id)
     return jsonify(workflow)
 
 
+@blueprint.put("/<int:workflow_id>")
+def modify_workflow_info(workflow_id):
+    workflow = Workflow.get(workflow_id)
+    if workflow is None:
+        return not_found_json_response(id=workflow_id)
+    return jsonify(workflow)
+
+
+@blueprint.delete("/<int:workflow_id>")
+def delete_workflow(workflow_id):
+    workflow = Workflow.get(workflow_id)
+    if workflow is not None:
+        db.session.delete(workflow)
+        db.session.commit()
+    return jsonify({
+        "id": workflow_id,
+        "old_data": workflow
+    })
+
+
 @blueprint.post("/<int:workflow_id>/edit")
 def start_editing(workflow_id):
     workflow = Workflow.get(workflow_id)
     if workflow is None:
-        response = jsonify({
-            "message": "Not Found"
-        })
-        response.status_code = 404
-        return response
+        return not_found_json_response(id=workflow_id)
     workflow.editing = True
     db.session.commit()
     return jsonify(workflow.to_dict())
@@ -39,11 +58,7 @@ def start_editing(workflow_id):
 def done_editing(workflow_id):
     workflow = Workflow.get(workflow_id)
     if workflow is None:
-        response = jsonify({
-            "message": "Not Found"
-        })
-        response.status_code = 404
-        return response
+        return not_found_json_response(id=workflow_id)
     workflow.editing = False
     db.session.commit()
     return jsonify(workflow.to_dict())
@@ -53,11 +68,7 @@ def done_editing(workflow_id):
 def do_workflow(workflow_id):
     workflow = Workflow.get(workflow_id)
     if workflow is None:
-        response = jsonify({
-            "message": "Not Found"
-        })
-        response.status_code = 404
-        return response
+        return not_found_json_response(id=workflow_id)
     if len(workflow.video_clips) > 0 and len(workflow.danmaku_clips) > 0:
         threading.Thread(target=do_workflow, args=(
             workflow.video_clips[0].full_path,