Closes#2845.
Ref #1351.
- Refactored `PostSettingsMenuController` to appropriately set and display
slug and publish date and their placeholders.
- Removed api spam on title change by putting `slugPlaceholder` generation
inside of an `Ember.run.debounce` call.
- Renamed `gh-blur-text-field` to `gh-blur-input`
- Created `SlugGenerator` class to abstract slug generation.
- Added `timestampVerification` function to `utils/date-formatting`
- `utils/date-formatting` now uses `strict` parsing of dates
- Added more acceptable date formats to accommodate strict parsing
- Moved `isDraft` and `isPublished` computed properties from
`EditorController` to `PostModel`
closes#2947
- make a PostSerializer to embed the tags objects in the posts POST/PUT request
- on editor save, clear out tags from the post and data store that have `id: null`
Closes#2860
- `editor-base-controller`'s `save` action returns a promise with the model
after saving
- `EditorNewController` will transition to `EditorEditController` upon a
successful save (model has an id)
- Removed a console.log in editor's save function
closes#2910
- create EditorController, PostSettingsMenuController
- remove `posts.post` controllerName dependency on EditorRoute/NewRoute
- `{{render}}` the PostSettingsMenuView with its own controller
- break up properties/methods from PostsPostController into all three controllers
- fix EditorRoute pagination options to now be comparable to PostsRoute
- add NewController to force NewRoute to refresh editor with blank model. Identical to Editor's
- EditorController and NewController are based on a shared mixin
- NewView created, templateName is 'editor'
