constructor(private af: AngularFireDatabase) {
this.items = af.list(`/${TABLE}`).valueChanges();
}
getLastMessage(): AngularFireList<any[]>{
return this.db.list('/messages/last/', ref => ref.orderByChild('time').limitToLast(10) );
}
observePosts() {
return this.af.list( this.category(ALL_CATEGORIES) );
}
getCourses(listPath): Observable<any[]> {
return this.db.list(listPath).valueChanges();
}
push( path, data ) {
return this.db.list('/' + path ).push(data);
}
messageIds.map(message => {
return this.database.object('/messages/'+message.key)
.first()
}),
/**
* Get post by id
* @param key
*/
getPostById(key: string): Observable<any> {
this.postRef = this.db.object(`posts/${key}`);
this.post = this.postRef.valueChanges();
return this.post;
}
readUsers(): Observable<User[]> {
return this.afDatabase.list('users').map((snapshot: any[]) => (
snapshot.map(userValues => new User(userValues))
));
}
readUser(uid: string): Observable<User> {
return this.afDatabase.object(`users/${uid}`).map((snapshot: any) => (
new User(snapshot)
));
}
this.posts.push(postObject).then((item) => {
this.db.object('/posts/' + item.key + '/entityKey').set(item.key);
});
