a

backend/node_modules/mongoose/lib/plugins/saveSubdocs.js

@@ -0,0 +1,94 @@
+'use strict';
+
+const symbols = require('../schema/symbols');
+
+/*!
+ * ignore
+ */
+
+module.exports = function saveSubdocs(schema) {
+  const unshift = true;
+
+  schema.s.hooks.pre('save', false, saveSubdocsPreSave, null, unshift);
+  schema.s.hooks.post('save', saveSubdocsPostSave, null, unshift);
+  schema.s.hooks.pre('save', saveSubdocsPreDeleteOne);
+  schema.s.hooks.post('save', saveSubdocsPostDeleteOne);
+};
+
+
+async function saveSubdocsPreSave() {
+  if (this.$isSubdocument) {
+    return;
+  }
+
+  const subdocs = this.$getAllSubdocs({ useCache: true });
+
+  if (!subdocs.length) {
+    return;
+  }
+
+  const options = this.$__.saveOptions;
+  await Promise.all(subdocs.map(subdoc => subdoc._execDocumentPreHooks('save', options, [options])));
+
+  // Invalidate subdocs cache because subdoc pre hooks can add new subdocuments
+  if (this.$__.saveOptions) {
+    this.$__.saveOptions.__subdocs = null;
+  }
+}
+
+async function saveSubdocsPostSave() {
+  if (this.$isSubdocument) {
+    return;
+  }
+
+  const subdocs = this.$getAllSubdocs({ useCache: true });
+
+  if (!subdocs.length) {
+    return;
+  }
+
+  const options = this.$__.saveOptions;
+  const promises = [];
+  for (const subdoc of subdocs) {
+    promises.push(subdoc._execDocumentPostHooks('save', options));
+  }
+
+  await Promise.all(promises);
+}
+
+async function saveSubdocsPreDeleteOne() {
+  const removedSubdocs = this.$__.removedSubdocs;
+  if (!removedSubdocs?.length) {
+    return;
+  }
+
+  const options = this.$__.saveOptions;
+  const promises = [];
+  for (const subdoc of removedSubdocs) {
+    promises.push(subdoc._execDocumentPreHooks('deleteOne', options));
+  }
+
+  await Promise.all(promises);
+}
+
+async function saveSubdocsPostDeleteOne() {
+  const removedSubdocs = this.$__.removedSubdocs;
+  if (!removedSubdocs?.length) {
+    return;
+  }
+
+  const options = this.$__.saveOptions;
+  const promises = [];
+  for (const subdoc of removedSubdocs) {
+    promises.push(subdoc._execDocumentPostHooks('deleteOne', options));
+  }
+
+  this.$__.removedSubdocs = null;
+  await Promise.all(promises);
+}
+
+
+saveSubdocsPreSave[symbols.builtInMiddleware] = true;
+saveSubdocsPostSave[symbols.builtInMiddleware] = true;
+saveSubdocsPreDeleteOne[symbols.builtInMiddleware] = true;
+saveSubdocsPostDeleteOne[symbols.builtInMiddleware] = true;