title: how i get all items of all users
body: <p>I'm practicing some Angular/Ionic and am having a bit of a hard time figuring out how i get all offresList of all users </p>
  
  <p>this is my database look like :</p>
  
  <p><img src="https://i.stack.imgur.com/SgOjz.png" alt="enter image description here"></p>
  
  <p>This is my providre offre.ts</p>
  
  <pre><code>export class OffreProvider {
  
  public offreListRef: firebase.database.Reference;
  
  constructor() {
    firebase.auth().onAuthStateChanged(user =&gt; {
        if (user) {
          this.offreListRef = firebase
            .database()
            .ref(`/userProfile/${user.uid}/offreList`);
        } 
    });
  }
  
   createOffre(
    offreTitre: string,
    offreSecteur: string,
    offreVille: string,
    offreDispo: string,
    offreDescrip: string,
    offreDate : string,
   ): firebase.database.ThenableReference {
   return this.offreListRef.push({
    titre: offreTitre,
    secteur: offreSecteur,
    ville: offreVille,
    dispo: offreDispo,
    descrip: offreDescrip,
    date : offreDate
  });
  }
  
  getOffreList(): firebase.database.Reference {
  return this.offreListRef;
  }
  }
  </code></pre>
  
  <p>and this is how i get all offres of currentUser
  mesOffres.ts</p>
  
  <pre><code>  export class MesOffresPage {
  
    public offreList: Array&lt;any&gt;;
  
    constructor(public navCtrl: NavController, public navParams: NavParams, 
   public offreProvider: OffreProvider) {
   }
  
    creatOffre(): void {
   this.navCtrl.push('CreateOffrePage');
   }
  
   ionViewDidLoad() {
   this.offreProvider.getOffreList().on("value", offreListSnapshot =&gt; {
     this.offreList = [];
     offreListSnapshot.forEach(snap =&gt; {
       this.offreList.push({
        id: snap.key,
        titre: snap.val().titre,
        secteur: snap.val().secteur,
        ville: snap.val().ville
        });
       return false;
    });
   });
   }
   }
  </code></pre>
  
  <p>now how i can get all offreslist of all Users with alloffres.ts
  and display it in alloffres.html
  I m stacking for 2 days</p>