feat: add discount source column to transaction tables

fix: move individual discounts to phone code response instead of poller

lib/loyalty.js

@@ -29,7 +29,7 @@ function getNumberOfAvailablePromoCodes () {
 }
 
 function getAvailableIndividualDiscounts () {
-  const sql = `SELECT * from individual_discounts WHERE soft_deleted=false`
+  const sql = `SELECT * FROM individual_discounts WHERE soft_deleted=false`
   return db.any(sql).then(res => _.map(it => ({
     id: it.id,
     customerId: it.customer_id,
@@ -37,6 +37,20 @@ function getAvailableIndividualDiscounts () {
   }), res))
 }
 
+function getCustomerIndividualDiscounts (customerId) {
+  const sql = `SELECT * FROM individual_discounts WHERE customer_id=$1 LIMIT 1`
+  return db.oneOrNone(sql, [customerId]).then(res => {
+    if (!_.isNil(res)) {
+      return {
+        id: res.id,
+        customerId: res.customer_id,
+        discount: res.discount
+      }
+    }
+    return res
+  })
+}
+
 function createIndividualDiscount (customerId, discount) {
   const sql = `INSERT INTO individual_discounts (id, customer_id, discount) VALUES ($1, $2, $3)`
   return db.none(sql, [uuid.v4(), customerId, discount])
@@ -54,6 +68,7 @@ module.exports = {
   deletePromoCode,
   getNumberOfAvailablePromoCodes,
   getAvailableIndividualDiscounts,
+  getCustomerIndividualDiscounts,
   createIndividualDiscount,
   deleteIndividualDiscount
 }