private save(item: any) {
   if (item.$key) {
     return this.items.update(item.$key, { name: item.name });
   } else {
     return this.items.push({ name: item.name, url: item.url, fullPath: item.fullPath });
   }
 }

 handler: data => {
   if (isNew) {
     this.ListaPlaca.push({ 'placa': data.placa, 'tipo' : data.tipo });
   } else {
     this.ListaPlaca.update(placa, { placa: data.placa });
   }
 }

      this.sub = this.route.params.subscribe(params => {
           if(params['id'] != null) {
             this.id = params['id'];
             console.log(this.id);
             
             this.items = db.list('/data', { preserveSnapshot: true });
             this.items
               .subscribe(snapshots => {
                   
                 snapshots.forEach(snapshot => {
                    
                   console.log(snapshot.key)
                   console.log(snapshot.val().baslik)
                   
                   if(this.id == snapshot.key)
                       {
                   
           this.Form.controls["yazi"].setValue(snapshot.val().yazi);
             this.Form.controls["baslik"].setValue(snapshot.val().baslik);
             this.Form.controls["yazar"].setValue(snapshot.val().yazar);
             this.Form.controls["img"].setValue(snapshot.val().img);
                       }
             
         
                 });
               })
           } 
        });

 updateItem() {
     console.log(this.Form.value.baslik);
     this.items.update(this.id, {baslik: this.Form.value.baslik,
                                 yazi: this.Form.value.yazi,
                                 img: this.Form.value.img,
                                 yazar: this.Form.value.yazar});
     
   }

  createRecipe(recipe: Recipe) {
    console.log('create');
    const recipeResponse = this.recipes.push(recipe);
    const myRecipes = this.db.object(`chefs/${this.chefSvc.currentUserId}/my-recipes/${recipeResponse.key}`);
    myRecipes.set(true);

    this.router.navigate(['/recipes', recipeResponse.key]);
  }

 addTable(newName: string) {
   this.tablesDB.push({ name: newName, count: "0", data:
     [
       {name: "player1", money: "0"},
       {name: "player2", money: "0"},
       {name: "player3", money: "0"},
       {name: "player4", money: "0"}
     ] });
 }

 incrementVoteValue(result:Submit){
   if(result == null){
     console.log("Error");
     this.nothingChecked = true;
   }
   else{
     result.vote = result.vote + 1;
     this.items.update(result.$key, result);
     this.nothingChecked = false;
   }
 }

 sendMessage (message: string) {
   console.log(this.user)
   const { email } = this.user
   const timestamp = this.getTimeStamp()
   this.chatMessages = this.getMessages()
   this.chatMessages.push({
     email,
     message,
     timeSent: timestamp,
   })
   console.log('send message!')
 }

 sendInquiryData(name : string, email : string, message : string){
   if(name == null || email == null || message == null){
     this.fieldsRequired = true;
   }
   else
   {    
     this.fieldsRequired = false;
     this.items.push({name: name, email: email, message: message});
     this.name = null;
     this.email = null;
     this.message = null;
   }
 }

 sendSubmissionData(topic : string, option1 : string, option2 : string){
   if(topic == null || option1 == null || option2 == null){
     this.fieldsRequired = true;
   }
   else
   {
     this.fieldsRequired = false;
     this.items.push({topic: topic, option1: option1, option2: option2, voteCount: 0});
     this.topic = null;
     this.option1 = null;
     this.option2 = null;
   }
 }