feat: amLocal pipe

* Adding amLocal pipe, per code found here: https://github.com/reberinformatik/angular2-moment/commit/0d545cc9a5e14913bddcb00221faaa7c4529ef17\#diff-bd4173df3baced7437261256a7041b36

* Fixing name in spec file.

* Fixing bug found in Local Pipe code.

* Fixing spec test.

* Fixing more class names.

* Ending file with new line per linter.

.gitignore

@@ -37,6 +37,9 @@ utc.pipe.d.ts
 parse.pipe.js
 parse.pipe.js.map
 parse.pipe.d.ts
+local.pipe.js
+local.pipe.js.map
+local.pipe.d.ts
 locale.pipe.js
 locale.pipe.js.map
 locale.pipe.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`
 
+## amLocal pipe
+
+Converts UTC time to local time.
+
+``` typescript
+@Component({
+  selector: 'app',
+  template: `
+    Last updated: {{mydate | amLocal | amDateFormat: 'YYYY-MM-DD HH:mm'}}
+  `
+})
+```
+
+Prints `Last updated 2016-01-24 12:34`
+
 ## amLocale pipe
 
 To be used with amDateFormat pipe in order to change locale.
@@ -176,7 +191,6 @@ To be used with amDateFormat pipe in order to change locale.
 
 Prints `Last updated: January 24th 2016, 2:23:45 pm`
 
-
 ## amFromUnix pipe
 
 ``` typescript

package.json

@@ -53,6 +53,10 @@
     "parse.pipe.js.map",
     "parse.pipe.d.ts",
     "parse.pipe.metadata.json",
+    "local.pipe.js",
+    "local.pipe.js.map",
+    "local.pipe.d.ts",
+    "local.pipe.metadata.json",
     "locale.pipe.js",
     "locale.pipe.js.map",
     "locale.pipe.d.ts",

src/index.ts

@@ -9,4 +9,5 @@ export { MomentModule } from './moment.module';
 export { SubtractPipe } from './subtract.pipe';
 export { TimeAgoPipe } from './time-ago.pipe';
 export { UtcPipe } from './utc.pipe';
+export { LocalTimePipe } from './local.pipe';
 export { LocalePipe } from './locale.pipe';

src/local.pipe.spec.ts

@@ -0,0 +1,61 @@
+import 'es6-shim';
+import 'reflect-metadata';
+import * as moment from 'moment';
+import { DateFormatPipe } from './date-format.pipe';
+import { LocalTimePipe } from './local.pipe';
+
+describe('LocalPipe', () => {
+
+  describe('#transform', () => {
+
+    let localPipe: LocalTimePipe;
+
+    beforeEach(() => {
+      localPipe = new LocalTimePipe();
+    });
+
+    it('should output an invalid momemt object for a null input', () => {
+      const localDate = localPipe.transform(null);
+      expect(localDate).toEqual(jasmine.any(moment));
+      expect(localDate.isValid()).toBe(false);
+    });
+
+    it('should output a moment object for a moment input', () => {
+      const momentDate = moment();
+      const localDate = localPipe.transform(momentDate);
+      expect(localDate).toEqual(jasmine.any(moment));
+      expect(localDate.isValid()).toBe(true);
+    });
+
+    it('should output a moment object for a date input', () => {
+      const date = new Date();
+      const localDate = localPipe.transform(date);
+      expect(localDate).toEqual(jasmine.any(moment));
+      expect(localDate.isValid()).toBe(true);
+    });
+
+    it('should output a moment object for a string date', () => {
+      const dateString = '2016-01-01';
+      const localDate = localPipe.transform(dateString);
+      expect(localDate).toEqual(jasmine.any(moment));
+      expect(localDate.isValid()).toBe(true);
+    });
+
+    it('should output a moment object for a timestamp', () => {
+      const timestamp: number = Date.now();
+      const localDate = localPipe.transform(timestamp);
+      expect(localDate).toEqual(jasmine.any(moment));
+      expect(localDate.isValid()).toBe(true);
+    });
+
+    it('should be pipeable to amDateFormat', () => {
+      const amDateFormat = new DateFormatPipe();
+      const datetimeString = '2015-12-31T23:00:00.000-01:00';
+      const momentFormatString = 'YYYY-MM-DD';
+      const localOutput = localPipe.transform(datetimeString);
+      expect(amDateFormat.transform(localOutput, momentFormatString)).toEqual('2016-01-01');
+    });
+
+  });
+
+});

src/local.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: 'amLocal' })
+export class LocalTimePipe implements PipeTransform {
+    transform(value: Date | moment.Moment | string | number): moment.Moment {
+        return moment(value).local();
+    }
+}

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 { LocalTimePipe } from './local.pipe';
 import { LocalePipe } from './locale.pipe';
 
 const ANGULAR_MOMENT_PIPES = [
@@ -23,6 +24,7 @@ const ANGULAR_MOMENT_PIPES = [
   SubtractPipe,
   TimeAgoPipe,
   UtcPipe,
+  LocalTimePipe,
   LocalePipe
 ];
 

tsconfig.json

@@ -37,6 +37,8 @@
     "src/time-ago.pipe.spec.ts",
     "src/utc.pipe.ts",
     "src/utc.pipe.spec.ts",
+    "src/local.pipe.ts",
+    "src/local.pipe.spec.ts",
     "src/locale.pipe.ts",
     "src/locale.pipe.spec.ts"
   ],