124 lines
3.7 KiB
JavaScript
124 lines
3.7 KiB
JavaScript
const Msg = require('../models/msg'); //import msg model
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//GET all messages
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const getAllMsg = (req, res) => {
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Msg.find({}, (err, data)=>{
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if (err){
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return res.json({Error: err});
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}
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return res.json(data);
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})
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};
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//POST message
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const newMsg = (req, res) => {
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let id = req.params.id; //get the msg id
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let msg = req.params.message; //get the msg message
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//check if the id already exists in db
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Msg.findOne({ id:id }, (err, data) => {
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//if this message is not in db, add it
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if (!data) {
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//create a new msg object using the Msg model and req.params
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const newMsg = new Msg({
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id:id,
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message:msg,
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time: Date.now(),
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})
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// save this object to database
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newMsg.save((err, data)=>{
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if(err) return res.json({Error: err});
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return res.json(data);
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})
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//if there's an error or the msg is in db, return an error message
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}else{
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if(err) return res.json(`Something went wrong, please try again. ${err}`);
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return res.json({message:"Message already exists"});
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}
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})
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};
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//DELETE all messages
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const deleteAllMsg = (req, res) => {
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Msg.deleteMany({}, err => {
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if(err) {
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return res.json({message: "Deletion of all messages failed"});
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}
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return res.json({message: "Deletion of all messages successful"});
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})
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};
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//GET message based on id
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const getOneMsg = (req, res) => {
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let id = req.params.id; //get the msg id
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//find the specific msg with that id
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Msg.findOne({id:id}, (err, data) => {
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if(err || !data) {
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return res.json({message: "Message doesn't exist."});
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}
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else return res.json(data); //return the msg object if found
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});
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};
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//PUT message based on id
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const updateMsg = (req, res) => {
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let id = req.params.id; //get the msg id
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let msg = req.params.message; //get the msg message
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//check if the id already exists in db
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Msg.findOne({ id:id }, (err, data) => {
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//if this message is not in db, add it
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if (data) {
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//create a new msg object using the Msg model and req.params
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const newMsg = new Msg({
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id:id,
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message:msg,
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time: Date.now(),
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})
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Msg.deleteOne({id:id}, (err, data) => {
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//if there's an error, return the err message
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if (err) return res.json(`Something went wrong, please try again. ${err}`);
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});
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// save this object to database
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newMsg.save((err, data)=>{
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if(err) return res.json({Error: err});
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return res.json(data);
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})
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//if there's an error or the msg is in db, return an error message
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}else{
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if(err) return res.json(`Something went wrong, please try again. ${err}`);
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return res.json({message:"Message doesn't exists"});
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}
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})
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};
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//DELETE message based on id
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const deleteOneMsg = (req, res) => {
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let id = req.params.id; // get the id of msg to delete
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Msg.deleteOne({id:id}, (err, data) => {
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//if there's nothing to delete return a message
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if( data.deletedCount == 0) return res.json({message: "Message doesn't exist."});
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//else if there's an error, return the err message
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else if (err) return res.json(`Something went wrong, please try again. ${err}`);
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//else, return the success message
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else return res.json({message: "Message deleted."});
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});
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};
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//export controller functions
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module.exports = {
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getAllMsg,
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newMsg,
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deleteAllMsg,
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getOneMsg,
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updateMsg,
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deleteOneMsg
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}; |