feat: add support for multiple insert in one query

BREAKING CHANGE
drop nodejs v12 support and juggler v3 support

Signed-off-by: Samarpan Bhattacharya <[email protected]>

Author: Samarpan Bhattacharya

.github/workflows/ci.yml

@@ -15,11 +15,11 @@ jobs:
     strategy:
       matrix:
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
-        node-version: [12, 14, 16]
+        node-version: [14, 16]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
       - uses: ankane/setup-mysql@v1

.gitignore

@@ -4,4 +4,4 @@ coverage
 *.xml
 .loopbackrc
 .idea
-
+.vscode

deps/juggler-v3/package.json

@@ -74,6 +74,8 @@ function MySQL(settings) {
 
 require('util').inherits(MySQL, SqlConnector);
 
+MySQL.prototype.multiInsertSupported = true;
+
 MySQL.prototype.connect = function(callback) {
   const self = this;
   const options = generateOptions(this.settings);
@@ -324,6 +326,20 @@ MySQL.prototype.getInsertedId = function(model, info) {
   return insertedId;
 };
 
+MySQL.prototype.getInsertedIds = function(model, info) {
+  let insertedIds = [];
+  const idProp = this.getDataSource(model).idProperty(model);
+  if (info && info.affectedRows > 0) {
+    insertedIds = new Array(info.affectedRows);
+    for (let i = 0; i < info.affectedRows; i++) {
+      insertedIds[i] = idProp.generated && typeof idProp.type() === 'number' &&
+        typeof info.insertId === 'number' && info.insertId > 0 ?
+        info.insertId + i : undefined;
+    }
+  }
+  return insertedIds;
+};
+
 /*!
  * Convert property name/value to an escaped DB column value
  * @param {Object} prop Property descriptor