Ember alternative to query params with service

问题

So I have a route with this model:

model() {
   var self = this;
   return RSVP.hash({
    comptes : this.get('store').findAll('compte'),
    contrats: 
    this.get('store').findAll('contrat').then(function(contrats) {
      return contrats.filterBy("contrat_fk.id", 
         self.get('currentContract.contrat.id'));
      }),
    })
  }

My goal is to filter the model contrat with the value provided by my service currentContract.

It works fine when the page is reloaded, but when I change the route and comeback to this route, the model doesn't seem to be loaded and I have to reload the page to see it.

And I don't really wan't to use query params and put the contract id in the URL

回答1:

Move the filter logic to a computer property in the controller. Then everything will work fine when the dependency key is right.

For example in your route you can do this:

model() {
  return this.store.findAll('contrat');
}

and next in your controller this:

currentContract: service(),
filteredContracts: computed('currentContract.contrat.id', 'model.@each.id', {
  get() {
    const cci = this.currentContract.contrat.id;
    return this.model.filter(c => c.id === cci);
  }
}),

be careful: this code uses the . for getters, which works for ember 3.1. For older versions you need to use .get().

来源：https://stackoverflow.com/questions/49813803/ember-alternative-to-query-params-with-service