Add new file box API

app/models/api/files/FileBox.model.js

@@ -0,0 +1,53 @@
+const { Model } = require('flitter-orm')
+const uuid = require('uuid').v4
+const { ObjectId } = require('mongodb')
+
+class FileBoxModel extends Model {
+    static get schema() {
+        return {
+            UUID: { type: String, default: uuid },
+            name: String,
+            pageId: String,
+            parentUUID: String,
+            rootUUID: String,
+            fileIds: [String],
+            active: { type: Boolean, default: true },
+        }
+    }
+
+    async parent() {
+        return this.constructor.findOne({
+            UUID: this.parentUUID,
+            active: true,
+        })
+    }
+
+    async root() {
+        return this.constructor.findOne({
+            UUID: this.rootUUID,
+            active: true,
+        })
+    }
+
+    async files() {
+        const File = this.models.get('upload::File')
+        return await File.find({
+            _id: {
+                $in: this.fileIds.map(x => ObjectId(x)),
+            }
+        })
+    }
+
+    async to_api() {
+        return {
+            UUID: this.UUID,
+            name: this.name,
+            pageId: this.pageId,
+            parentUUID: this.parentUUID,
+            rootUUID: this.rootUUID,
+            fileIds: this.fileIds || [],
+        }
+    }
+}
+
+module.exports = exports = FileBoxModel