I have a Laravel, Vue.js2 and Pusher stack. In the created() I'm able to subscribe to pusher channel and listen to it. I can even log the event data in the console, however, I'm not able to set it in the data value on FE. Does anybody know why?
<template>
<div class="flex flex-col items-center b p-10 rounded shadow-lg bg-white">
<p class="text-xl text-blueGray-800 leading-relaxed mt-6">Aktuálna cena:</p>
<div class="flex flex-col items-center justify-evenly w-full mt-3 mb-6">
<div>
<h1 class="text-xl md:text-4xl mb-4 font-bold font-heading">
{{ price.value }} €
</h1>
</div>
<div>
<a
href="#"
class="bg-black"
@click="raisePrice"
>Add 100 €</a
>
</div>
</div>
<hr class="w-full mb-6" />
</div>
</template>
<script>
export default {
props: ["id", "bidder_id"],
data() {
return {
auction: null,
price: '',
newPrice: null,
};
},
created() {
window.axios.defaults.headers.common = {
"X-Requested-With": "XMLHttpRequest",
"X-CSRF-TOKEN": document
.querySelector('meta[name="csrf-token"]')
.getAttribute("content"),
};
this.fetchPrice();
Pusher.logToConsole = true;
var pusher = new Pusher("123456789", {
cluster: "eu",
});
var channel = pusher.subscribe(this.id.toString());
channel.bind("price-raise", function (data) {
this.price.value = data.price;
});
},
methods: {
fetchPrice() {
axios.get(`/auction/${this.id}`).then((response) => {
this.auction = response.data;
this.price = {"value": response.data.actual_price};
});
},
raisePrice() {
this.newPrice = this.price.value 100;
this.price.value = this.price.value 100;
const req_data = {
actual_price: this.newPrice,
id: this.id,
bidder_id: parseInt(this.bidder_id),
};
axios
.post("/auction/raise/" this.id, req_data)
.then((response) => {
console.log(response.data);
})
.catch(function (error) {
console.log(error);
});
},
},
};
</script>
Does anybody know how it suppose to be to update/re-render the {{price.value}} once pusher shoots a message??
PS: on raisePrice() method it changes (everytime button is clicked)
CodePudding user response:
I thinks this is issue with context (this
keyword).
channel.bind("price-raise", function (data) {
// 'this' reference here is not the reference to vue-component
this.price.value = data.price;
});
You should either use arrow-function...
channel.bind("price-raise", (data) => this.price.value = data.price);
...or an old-school that
lifehack:
var that = this;
channel.bind("price-raise", function (data) {
that.price.value = data.price;
});