fix(Purchase): remove fixed payment Methods.

tienda_ilusion/don_confiao/frontend/don-confiao/src/components/Purchase.vue

@@ -151,11 +151,7 @@
        client_search: '',
        product_search: '',
        payment_cash: 0,
-       payment_methods: [
-         {'text': 'Efectivo', 'value': 'CASH'},
-         {'text': 'Confiar', 'value': 'CONFIAR'},
-         {'text': 'Bancolombia', 'value': 'BANCOLOMBIA'},
-       ],
+       payment_methods: null,
        purchase: {
          date: this.getCurrentDate(),
          customer: null,
@@ -177,6 +173,7 @@
    created() {
      this.fetchClients();
      this.fetchProducts();
+     this.fetchPaymentMethods();
    },
    watch: {
      group () {
@@ -265,13 +262,22 @@
        fetch('/don_confiao/api/products/')
          .then(response => response.json())
          .then(data => {
-           console.log(data);
            this.products = data;
          })
          .catch(error => {
            console.error(error);
          });
      },
+     fetchPaymentMethods() {
+       fetch('/don_confiao/payment_methods/all/select_format')
+         .then(response => response.json())
+         .then(data => {
+           this.payment_methods = data;
+         })
+         .catch(error => {
+           console.error(error);
+         });
+     },
      addLine() {
        this.purchase.saleline_set.push({ product: '', unit_price: 0, quantity:0, measuring_unit: ''});
      },