From 2eff2c075f724eb8d2d8e1ce247d1322b3b08835 Mon Sep 17 00:00:00 2001
From: Suraj Pillai <85.suraj@gmail.com>
Date: Wed, 22 Apr 2020 00:20:50 -0400
Subject: [PATCH] Add file upload

---
 config/project-scratch-def.json               |  2 +-
 .../default/classes/GetFilesController.cls    | 19 ++++--
 .../filesRelatedList/filesRelatedList.html    |  9 ++-
 .../lwc/filesRelatedList/filesRelatedList.js  | 64 +++++++++++++++++--
 4 files changed, 81 insertions(+), 13 deletions(-)

diff --git a/config/project-scratch-def.json b/config/project-scratch-def.json
index 198a1f1..2ad5a6d 100755
--- a/config/project-scratch-def.json
+++ b/config/project-scratch-def.json
@@ -1,7 +1,7 @@
 {
   "orgName": "Demo company",
   "edition": "Developer",
-  "features": [],
+  "features": ["AuthorApex"],
   "settings":{
   	"lightningExperienceSettings":{
   		"enableS1DesktopEnabled": true
diff --git a/force-app/main/default/classes/GetFilesController.cls b/force-app/main/default/classes/GetFilesController.cls
index c0e9a32..c250681 100755
--- a/force-app/main/default/classes/GetFilesController.cls
+++ b/force-app/main/default/classes/GetFilesController.cls
@@ -44,8 +44,8 @@ public with sharing class GetFilesController {
   public static FileVersionWrapper[] getFileVersionDetails(Id fileId) {
     /*{{{*/
     FileVersionWrapper[] contentversions = new List<FileVersionWrapper>{};
-    for (ContentVersion cv : [SELECT title, createddate, createdby.name FROM ContentVersion WHERE ContentDocumentId = :fileId]) {
-      contentVersions.add(new FileVersionWrapper(cv.Id, cv.title, cv.createdby.name, Date.valueOf(cv.createddate)));
+    for (ContentVersion cv : [SELECT title, createddate, createdby.name, VersionReason FROM ContentVersion WHERE ContentDocumentId = :fileId]) {
+      contentVersions.add(new FileVersionWrapper(cv.Id, cv.title, cv.createdby.name, Date.valueOf(cv.createddate), cv.VersionReason));
     }
     return contentVersions;
   } /*}}}*/
@@ -68,11 +68,12 @@ public with sharing class GetFilesController {
     }
 
     public FilesWrapper() {
+      /*{{{*/
       this.title = '';
       this.createdBy = '';
       this.createdDate = null;
       this.id = '';
-    }
+    } /*}}}*/
 
     public FilesWrapper(String id, String title, String createdBy, Date createdDate) {
       this.id = id;
@@ -92,6 +93,8 @@ public with sharing class GetFilesController {
     @AuraEnabled
     public Date createdDate { get; set; }
     @AuraEnabled
+    public String versionReason { get; set; }
+    @AuraEnabled
     public String url {
       get {
         return '/' + this.id;
@@ -100,17 +103,21 @@ public with sharing class GetFilesController {
     }
 
     public FileVersionWrapper() {
+      /*{{{*/
       this.title = '';
       this.createdBy = '';
       this.createdDate = null;
       this.id = '';
-    }
+      this.versionReason = '';
+    } /*}}}*/
 
-    public FileVersionWrapper(String id, String title, String createdBy, Date createdDate) {
+    public FileVersionWrapper(String id, String title, String createdBy, Date createdDate, String versionReason) {
+      /*{{{*/
       this.id = id;
       this.title = title;
       this.createdBy = createdBy;
       this.createdDate = createdDate;
-    }
+      this.versionReason = versionReason;
+    } /*}}}*/
   } /*}}}*/
 }
diff --git a/force-app/main/default/lwc/filesRelatedList/filesRelatedList.html b/force-app/main/default/lwc/filesRelatedList/filesRelatedList.html
index 5adfd48..fdf168c 100755
--- a/force-app/main/default/lwc/filesRelatedList/filesRelatedList.html
+++ b/force-app/main/default/lwc/filesRelatedList/filesRelatedList.html
@@ -1,4 +1,5 @@
 <template>
+  <lightning-button label="New File" onclick={newFileUpload}></lightning-button>
   <lightning-datatable columns={columns} key-field="id" data={files} onrowaction={handleRowAction}></lightning-datatable>
   <template if:true={showModal}>
     <section class="slds-modal slds-fade-in-open">
@@ -9,7 +10,13 @@
           </div>
         </header>
         <div class="slds-modal__content">
-          <lightning-datatable key-field="id" data={versionDetails} columns={versionColumns}></lightning-datatable>
+          <template if:false={fileUpload}>
+            <lightning-datatable key-field="id" data={versionDetails} columns={versionColumns}></lightning-datatable>
+          </template>
+          <template if:true={fileUpload}>
+            <input type="file" name="file" />
+            <lightning-button onclick={handleUpload} label="Submit"></lightning-button>
+          </template>
         </div>
       </div>
     </section>
diff --git a/force-app/main/default/lwc/filesRelatedList/filesRelatedList.js b/force-app/main/default/lwc/filesRelatedList/filesRelatedList.js
index bb98e45..f64fe1c 100755
--- a/force-app/main/default/lwc/filesRelatedList/filesRelatedList.js
+++ b/force-app/main/default/lwc/filesRelatedList/filesRelatedList.js
@@ -1,8 +1,13 @@
 import { LightningElement, wire, api } from "lwc";
 import getRelatedFiles from "@salesforce/apex/GetFilesController.getFilesList";
 import getFileVersionDetails from "@salesforce/apex/GetFilesController.getFileVersionDetails";
+import { createRecord } from "lightning/uiRecordApi";
+import { ShowToastEvent } from "lightning/platformShowToastEvent";
 
-const actions = [{ label: "Version Details", name: "show_details" }];
+const actions = [
+  { label: "Version Details", name: "show_details" },
+  { label: "Upload", name: "upload_version" }
+];
 
 const columns = [
   {
@@ -23,6 +28,7 @@ const versionColumns = [
     type: "url",
     typeAttributes: { label: "Download" }
   },
+  { label: "Version Reason", fieldName: "versionReason", type: "string" },
   { label: "Uploaded Date", fieldName: "createdDate", type: "date" },
   { label: "Uploaded by", fieldName: "createdBy", type: "string" }
 ];
@@ -36,6 +42,8 @@ export default class FilesRelatedList extends LightningElement {
   columns = columns;
   versionColumns = versionColumns;
   versionDetails = [];
+  fileUpload = false;
+  _currentDocId = null;
 
   @wire(getRelatedFiles, { recordId: "$recordId" })
   getFilesList({ error, data }) {
@@ -47,18 +55,32 @@ export default class FilesRelatedList extends LightningElement {
 
   closeModal() {
     this.showModal = false;
+    this._currentDocId = null;
+    this.fileUpload = false;
     this.versionDetails = [];
   }
 
   handleRowAction(event) {
     console.log(">> handle row action " + event.detail.action.name);
-    const row = event.detail.row;
-    this.showVersionDetails(row.id);
+    const action = event.detail.action.name;
+    this._currentDocId = row.id;
+    if (action == "show_details") {
+      const row = event.detail.row;
+      this.fileUpload = false;
+      this.showVersionDetails();
+    } else if (action == "upload_version") {
+      this.fileUpload = true;
+    }
   }
 
-  showVersionDetails(id) {
+  newFileUpload() {
+    this.showModal = true;
+    this.fileUpload = true;
+  }
+
+  showVersionDetails() {
     console.log(">> file version details");
-    getFileVersionDetails({ fileId: id })
+    getFileVersionDetails({ fileId: this._currentDocId })
       .then((result) => {
         console.log(">> version details " + JSON.stringify(result));
         this.versionDetails = result;
@@ -68,4 +90,36 @@ export default class FilesRelatedList extends LightningElement {
         console.error(JSON.stringify(err));
       });
   }
+
+  handleUpload(event) {
+    event.preventDefault();
+    const file = this.template.querySelector("input.file").files[0];
+    const reader = new FileReader();
+    let fileData = "";
+    reader.onload = () => {
+      fileData = reader.result;
+      this._uploadFile(file, fileData);
+    };
+    reader.readAsDataURL(file);
+  }
+
+  _uploadFile(file, fileData) {
+    const payload = {
+      Title: file.name,
+      PathOnClient: file.name,
+      VersionData: fileData.replace(BASE64EXP, "")
+    };
+    if (this._currentDocId) {
+      payload.ContentDocumentId = this._currentDocId;
+    }
+    createRecord(payload).then(() => {
+      this.closeModal();
+      this.dispatchEvent(
+        new ShowToastEvent({
+          variant: "success",
+          message: `Content Document Link created`
+        })
+      );
+    });
+  }
 }