Deleting documents now returns a boolean response

Author: shiv19

README.md

@@ -13,7 +13,7 @@
 
 
 ```ts
-import { Couchbase } from 'nativescript-couchbase-plugin';
+import { Couchbase, ConcurrencyMode } from 'nativescript-couchbase-plugin';
 const database = new Couchbase('my-database');
 
 const documentId = database.createDocument({
@@ -34,7 +34,8 @@ database.updateDocument(documentId, {
     "twitter": "https://www.twitter.com/triniwiz"
 });
 
-const isDeleted = database.deleteDocument(documentId);
+// Default concurrency mode is FailOnConflict if you don't pass it
+const isDeleted = database.deleteDocument(documentId, ConcurrencyMode.FailOnConflict);
 ```
 
 ### Synchronization with Couchbase Sync Gateway and Couchbase Server

demo/tsconfig.json

@@ -5,6 +5,7 @@
         "declaration": false,
         "removeComments": true,
         "noLib": false,
+        "skipLibCheck": true,
         "emitDecoratorMetadata": true,
         "experimentalDecorators": true,
         "lib": [

src/couchbase-plugin.android.ts

@@ -1,6 +1,7 @@
 import {
     BlobBase,
     Common,
+    ConcurrencyMode,
     Query,
     QueryComparisonOperator,
     QueryLogicalOperator,
@@ -377,10 +378,11 @@ export class Couchbase extends Common {
         return item < -Math.pow(2, 31) + 1 || item > Math.pow(2, 31) - 1;
     }
 
-    deleteDocument(documentId: string) {
+    deleteDocument(documentId: string, concurrencyMode: ConcurrencyMode = 1) {
         try {
             const doc = this.android.getDocument(documentId);
-            return this.android.delete(doc);
+            return this.android.delete(doc, concurrencyMode === 1 ? com.couchbase.lite.ConcurrencyControl.FAIL_ON_CONFLICT :
+                com.couchbase.lite.ConcurrencyControl.LAST_WRITE_WINS);
         } catch (e) {
             console.error(e.message);
             return false;

src/couchbase-plugin.common.ts

@@ -141,3 +141,8 @@ export abstract class BlobBase {
         this.blob = blob;
     }
 }
+
+export enum ConcurrencyMode {
+    'LastWriteWins' = 0,
+    'FailOnConflict' = 1
+}

src/couchbase-plugin.ios.ts

@@ -5,7 +5,8 @@ import {
     QueryComparisonOperator,
     QueryLogicalOperator,
     QueryMeta,
-    ReplicatorBase
+    ReplicatorBase,
+    ConcurrencyMode
 } from './couchbase-plugin.common';
 import * as types from 'tns-core-modules/utils/types';
 import * as fs from 'tns-core-modules/file-system';
@@ -336,9 +337,12 @@ export class Couchbase extends Common {
         this.ios.saveDocumentError(newDoc);
     }
 
-    deleteDocument(documentId: string) {
+    deleteDocument(documentId: string, concurrencyMode: ConcurrencyMode = 1) {
+        
         const doc = this.ios.documentWithID(documentId);
-        return this.ios.deleteDocumentError(doc);
+        return this.ios.deleteDocumentConcurrencyControlError(doc,
+                concurrencyMode === 1 ? CBLConcurrencyControl.kCBLConcurrencyControlFailOnConflict : 
+                CBLConcurrencyControl.kCBLConcurrencyControlLastWriteWins);
     }
 
     destroyDatabase() {

src/index.d.ts

@@ -1,7 +1,7 @@
 import { Common, Query, ReplicatorBase } from './couchbase-plugin.common';
 
 export {
-    Query, QueryMeta, QueryArrayOperator, QueryComparisonOperator, QueryLogicalOperator, QueryOrderItem, QueryWhereItem
+    ConcurrencyMode, Query, QueryMeta, QueryArrayOperator, QueryComparisonOperator, QueryLogicalOperator, QueryOrderItem, QueryWhereItem
 }from './couchbase-plugin.common';
 
 export declare class Couchbase extends Common {