У меня есть простой набор данных vuetify, который выполняет операции CRUD. Я использую топор ios и базу данных mon go. Когда я добавляю новый элемент, информация корректно отображается на стороне клиента и публикуется в базе данных mon go. Однако Я не могу получить доступ к обновленной информации базы данных mon go, в частности к идентификатору, который mon go создал , если я не перезагружу веб-страницу. Я новичок в Vue, наберитесь терпения. Упрощенная версия задачи:
axios
.post('http://localhost:5000/dessert', {
name: this.editedItem.name
})
console.log(this.editedItem.name) // I CAN ACCES WITHOUT PROBLEM
console.log(this.editedItem._id) // I NEED TO RELOAD THE WEBPAGE IN ORDER TO ACCES THIS ELEMENT. THE ID THAT MONGO CREATED.
Vue файл :
<template>
<v-data-table
:headers="headers"
:items="desserts"
sort-by="calories"
class="elevation-1"
>
<template v-slot:top>
<v-toolbar flat color="white">
<v-toolbar-title>My CRUD</v-toolbar-title>
<v-divider
class="mx-4"
inset
vertical
></v-divider>
<v-spacer></v-spacer>
<v-dialog v-model="dialog" max-width="500px">
<template v-slot:activator="{ on }">
<v-btn color="primary" dark class="mb-2" v-on="on">New Item</v-btn>
</template>
<v-card>
<v-card-title>
<span class="headline">{{ formTitle }}</span>
</v-card-title>
<v-card-text>
<v-container>
<v-row>
<v-col cols="12" sm="6" md="4">
<v-text-field v-model="editedItem.name" label="Dessert name"></v-text-field>
</v-col>
<v-col cols="12" sm="6" md="4">
<v-text-field v-model="editedItem.calories" label="Calories"></v-text-field>
</v-col>
</v-row>
</v-container>
</v-card-text>
<v-card-actions>
<v-spacer></v-spacer>
<v-btn color="blue darken-1" text @click="close">Cancel</v-btn>
<v-btn color="blue darken-1" text @click="save">Save</v-btn>
</v-card-actions>
</v-card>
</v-dialog>
</v-toolbar>
</template>
<template v-slot:item.action="{ item }">
<v-icon
small
class="mr-2"
@click="editItem(item)"
>
edit
</v-icon>
<v-icon
small
@click="deleteItem(item)"
>
delete
</v-icon>
</template>
<template v-slot:no-data>
<v-btn color="primary" @click="initialize">Reset</v-btn>
</template>
</v-data-table>
</template>
<script>
import axios from 'axios'
export default {
data: () => ({
dialog: false,
headers: [
{
text: 'Dessert (100g serving)',
value: 'name',
},
{ text: 'Calories', value: 'calories' },
{ text: 'Actions', value: 'action', sortable: false },
],
desserts: [],
editedIndex: -1,
editedItem: {
name: '',
calories: 0,
},
defaultItem: {
name: '',
calories: 0,
},
}),
mounted() {
this.fetchItems()
},
computed: {
formTitle () {
return this.editedIndex === -1 ? 'New Item' : 'Edit Item'
},
},
watch: {
dialog (val) {
val || this.close()
},
},
created () {
this.initialize()
},
methods: {
fetchItems(){
axios
.get('http://localhost:5000/dessert')
.then(response => (this.desserts = response.data.data))
},
editItem (item) {
this.editedIndex = this.desserts.indexOf(item)
this.editedItem = Object.assign({}, item)
this.editedID = this.editedItem._id
this.name = this.editedItem.name
this.calories = this.editedItem.calories
this.dialog = true
},
deleteItem (item) {
const index = this.desserts.indexOf(item)
this.deletedItem = Object.assign({}, item)
console.log(this.deletedItem)
this.deletedID = this.deletedItem._id
console.log(this.deletedID)
if (confirm("Do you really want to delete?")) {
axios.delete(`http://localhost:5000/dessert/${this.deletedID}`);
this.desserts.splice(index, 1);
}
},
close () {
this.dialog = false
setTimeout(() => {
this.editedItem = Object.assign({}, this.defaultItem)
this.editedIndex = -1
}, 300)
},
save () { // Edit Item
if (this.editedIndex > -1) {
Object.assign(this.desserts[this.editedIndex], this.editedItem)
axios.delete(`http://localhost:5000/dessert/${this.editedItem._id}`)
axios
.post('http://localhost:5000/dessert', {
name: this.editedItem.name,
calories: this.editedItem.calories
})
// New Item
} else {
this.desserts.push(this.editedItem)
axios.post('http://localhost:5000/dessert', {
name: this.editedItem.name,
calories: this.editedItem.calories
})
}
this.close()
},
},
}
</script>
Python файл :
from flask import Flask
from flask import jsonify
from flask import request
from flask_pymongo import PyMongo
from flask_cors import CORS
from bson.objectid import ObjectId
app = Flask(__name__)
#CORS(app)
# instantiate
app.config.from_object(__name__)
# enable CORS
CORS(app, resources={r'/*': {'origins': '*'}})
app.config['MONGO_DBNAME'] = 'restdb'
app.config['MONGO_URI'] = 'mongodb://localhost:27017/restdb'
mongo = PyMongo(app)
@app.route('/dessert', methods=['POST'])
def add_dessert():
dessert = mongo.db.desserts
name = request.json['name']
calories = request.json['calories']
dessert_id = dessert.insert({
'name': name,
'calories': calories
})
new_dessert = dessert.find_one({'_id': dessert_id })
output = {
'name' : new_dessert['name'],
'calories' : new_dessert['calories']
}
return jsonify({'result' : output})
@app.route('/dessert', methods=['GET'])
def get_all_desserts():
dessert = mongo.db.desserts
output = []
for s in dessert.find():
s['_id'] = str(s['_id'])
output.append({'_id' : s['_id'],
'name' : s['name'],
'calories' : s['calories']
})
return jsonify({'data' : output})
@app.route('/dessert/<dessert_id>', methods=['GET'])
def get_one_dessert(dessert_id):
dessert = mongo.db.desserts
s = dessert.find_one({"_id" : ObjectId(dessert_id)})
s['_id'] = str(s['_id'])
if s:
output = {'_id' : s['_id'], 'name' : s['name'], 'calories' : s['calories']}
else:
output = "No such name"
return jsonify({'result' : output})
@app.route('/dessert/<dessert_id>', methods=['DELETE'])
def delete_one_dessert(dessert_id):
dessert = mongo.db.desserts
s = dessert.find_one({"_id" : ObjectId(dessert_id)})
s['_id'] = str(s['_id'])
dessert.remove({"_id" : ObjectId(dessert_id)})
if s:
output = {'_id' : s['_id'], 'name' : s['name'], 'calories' : s['calories']}
else:
output = "No such name"
return jsonify({'result' : output})
if __name__ == '__main__':
app.run(debug=True)