amLang pipe implemented

.gitignore

@@ -37,6 +37,9 @@ utc.pipe.d.ts
 parse.pipe.js
 parse.pipe.js.map
 parse.pipe.d.ts
+locale.pipe.js
+locale.pipe.js.map
+locale.pipe.d.ts
 *.spec.js
 *.spec.js.map
 *.spec.d.ts

README.md

@@ -161,6 +161,21 @@ Parses a custom-formatted date into a moment object that can be used with the ot
 
 Prints `Last updated: January 24, 2016`
 
+## amLocale pipe
+
+To be used with amDateFormat pipe in order to change locale.
+
+``` typescript
+@Component({
+  selector: 'app',
+  template: `
+    Last updated: {{'2016-01-24 14:23:45' | amLocale:'en' | amDateFormat:'MMMM Do YYYY, h:mm:ss a'}}
+  `
+})
+```
+
+Prints `Last updated: January 24th 2016, 2:23:45 pm`
+
 
 ## amFromUnix pipe
 

package.json

@@ -53,6 +53,10 @@
     "parse.pipe.js.map",
     "parse.pipe.d.ts",
     "parse.pipe.metadata.json",
+    "locale.pipe.js",
+    "locale.pipe.js.map",
+    "locale.pipe.d.ts",
+    "locale.pipe.metadata.json",
     "CHANGELOG.md"
   ],
   "scripts": {

src/index.ts

@@ -9,3 +9,4 @@ export { MomentModule } from './moment.module';
 export { SubtractPipe } from './subtract.pipe';
 export { TimeAgoPipe } from './time-ago.pipe';
 export { UtcPipe } from './utc.pipe';
+export { LocalePipe } from './locale.pipe';

src/locale.pipe.spec.ts

@@ -0,0 +1,44 @@
+import 'es6-shim';
+import 'reflect-metadata';
+import * as moment from 'moment';
+import { DateFormatPipe } from './date-format.pipe';
+import { LocalePipe } from './locale.pipe';
+
+describe('LocalePipe', () => {
+
+  describe('#transform', () => {
+
+    let localePipe: LocalePipe;
+
+    beforeEach(() => {
+      localePipe = new LocalePipe();
+    });
+
+    it('should output a moment object for a string date', () => {
+      const datetimeString = '2016-01-24 01:23:45';
+      const langKeyString1 = 'en';
+      const langKeyString2 = 'de';
+      const parsedMoment1 = localePipe.transform(datetimeString, langKeyString1);
+      const parsedMoment2 = localePipe.transform(datetimeString, langKeyString2);
+      expect(parsedMoment1).toEqual(jasmine.any(moment));
+      expect(parsedMoment2).toEqual(jasmine.any(moment));
+      expect(parsedMoment1.isValid()).toBe(true);
+      expect(parsedMoment2.isValid()).toBe(true);
+    });
+
+    it('should be pipeable to amDateFormat', () => {
+      const amDateFormat = new DateFormatPipe();
+      const datetimeString = '2016-01-24 14:23:45';
+      const langKeyString1 = 'en';
+      const langKeyString2 = 'de';
+      const momentFormatString1 = 'MMMM Do YYYY, h:mm:ss a';
+      const momentFormatString2 = 'MMMM Do YYYY, HH:mm:ss';
+      const parseOutput1 = localePipe.transform(datetimeString, langKeyString1);
+      const parseOutput2 = localePipe.transform(datetimeString, langKeyString2);
+      expect(amDateFormat.transform(parseOutput1, momentFormatString1)).toEqual('January 24th 2016, 2:23:45 pm');
+      expect(amDateFormat.transform(parseOutput2, momentFormatString2)).toEqual('Januar 24. 2016, 14:23:45');
+    });
+
+  });
+
+});

src/locale.pipe.ts

@@ -0,0 +1,12 @@
+import { Pipe, PipeTransform } from '@angular/core';
+import * as moment from 'moment';
+
+// under systemjs, moment is actually exported as the default export, so we account for that
+const momentConstructor: (value?: any) => moment.Moment = (<any>moment).default || moment;
+
+@Pipe({ name: 'amLocale' })
+export class LocalePipe implements PipeTransform {
+  transform(value: string, locale: string): moment.Moment {
+    return moment(value).locale(locale);
+  }
+}

src/moment.module.ts

@@ -10,6 +10,7 @@ import { ParsePipe } from './parse.pipe';
 import { SubtractPipe } from './subtract.pipe';
 import { TimeAgoPipe } from './time-ago.pipe';
 import { UtcPipe } from './utc.pipe';
+import { LocalePipe } from './locale.pipe';
 
 const ANGULAR_MOMENT_PIPES = [
   AddPipe,
@@ -21,7 +22,8 @@ const ANGULAR_MOMENT_PIPES = [
   ParsePipe,
   SubtractPipe,
   TimeAgoPipe,
-  UtcPipe
+  UtcPipe,
+  LocalePipe
 ];
 
 @NgModule({

tsconfig.json

@@ -36,7 +36,9 @@
     "src/time-ago.pipe.ts",
     "src/time-ago.pipe.spec.ts",
     "src/utc.pipe.ts",
-    "src/utc.pipe.spec.ts"
+    "src/utc.pipe.spec.ts",
+    "src/locale.pipe.ts",
+    "src/locale.pipe.spec.ts"
   ],
   "angularCompilerOptions": {
     "genDir": "compiled"