Nach der Suche nach einem einfachen Beispiel für die Implementierung von CRUD-Code mit neuesten Sequelize ORM Version 4.15, konnte die Antwort in einer einzigen Frage nicht finden. Musste jede CRUD Operation separat suchen.Node.js - Sequelize ORM - Einfache CRUD (Erstellen, Lesen, Aktualisieren und Löschen) Beispiel
einfache CRUD mit Node.js und Sequelize ORM:
Beispiel mit einfacher Organisationseinheit mit "id" und "namen" ein.
app.js
... var organizations = require('./routes/organizations'); ...
module.exports = function (sequelize, DataTypes) {
return sequelize.define('organization', {
id: {
type: DataTypes.INTEGER(11),
allowNull: false,
primaryKey: true,
autoIncrement: true
},
name: {
type: DataTypes.STRING(200),
allowNull: false
}
}, {
tableName: 'organization'
});
};var express = require('express');
var router = express.Router();
const sequelize = require('path/to/sequelize');
const Model = sequelize.import('../models/organization');
/* GET Models. */
router.get('/', function (req, res, next) {
var code = 500;
var message = 'Internal Server Error';
var result = '';
var page = req.query.page || 1;
var limit = req.query.limit || 5;
var offset = (page - 1) * limit;
Model
.findAndCountAll({
offset: +offset,
limit: +limit
})
.then(result => {
code = 200;
message = 'OK';
res.json({
code: code,
message: message,
response: {
data: { models: result }
}
});
});
});
/* GET Model. */
router.get('/:id', function (req, res, next) {
var code = 500;
var message = 'Internal Server Error';
var result = '';
var id = req.params.id | 0;
Model
.find({
where: {
id: id
}
})
.then(result => {
code = 200;
message = 'OK';
res.json({
code: code,
message: message,
response: {
data: { model: result }
}
});
});
});
/* POST new Model. */
router.post('/', function (req, res, next) {
var code = 500;
var message = 'Internal Server Error';
var response = '';
var postData = {
name: req.body.name
};
Model.create(postData)
.then(function (model) {
code = 200;
message = 'OK';
response = 'Record is successfully added.';
res.json({
code: code,
message: message,
response: {
msg: response
}
});
})
.catch(function (err) {
code = 500;
response = message;
res.json({
code: code,
message: message,
response: {
msg: response
}
});
});
});
/* PUT old Model. */
router.put('/:id', function (req, res, next) {
var code = 500;
var message = 'Internal Server Error';
var response = '';
var id = req.params.id;
var putData = {
name: req.body.name
};
Model.update(putData,
{
where: {
id: id
}
}
)
.then(function (model) {
code = 200;
message = 'OK';
response = 'Record is successfully updated.';
res.json({
code: code,
message: message,
response: {
msg: response
}
});
})
.catch(function (err) {
code = 500;
response = message;
res.json({
code: code,
message: message,
response: {
msg: response
}
});
});
});
/* DELETE Model. */
router.delete('/:id', function (req, res, next) {
var code = 500;
var message = 'Internal Server Error';
var response = '';
var id = req.params.id;
Model.destroy(
{
where: {
id: id
}
}
)
.then(function (deletedRecord) {
if (deletedRecord === 1) {
code = 200;
message = 'OK';
response = 'Record is successfully deleted.';
} else {
code = 404;
message = 'OK';
response = 'Record not found.';
}
res.json({
code: code,
message: message,
response: {
msg: response
}
});
})
.catch(function (err) {
code = 500;
response = message;
res.json({
code: code,
message: message,
response: {
msg: response
}
});
});
});
module.exports = router;Es wäre sehr willkommen besser zu wissen Code als die oben genannten. Es könnte jemandem helfen.