Yes I did do that but that gives me the index for the Phones array that is a sub array of Contacts. So I have the index of the Phones array to remove but I need the Contact index that the Phones array is attached to
http://jsbin.com/yubigo/edit?html,output removePhone: function(e, detail, sender){ > var contactIdx = parseInt(sender.templateInstance.model.c.idx) > var phoneIdx = parseInt(sender.templateInstance.model.idx) > this.data[contactIdx].splice(phoneidx,1); When you click on a particular phone to delete from a contact it calls the above function. You can see that in order to remove the phone that I have the index for, I need to have the contact index as well. But in this function I only have access to the model associated with the Phones and not the Contact. Is there a way to traverse up the templateInstance chain to get the templatInstance associated with the Contact? On Sunday, December 14, 2014 1:49:12 AM UTC-5, [email protected] wrote: > > I am trying to convert Knockout contacts example to Polymer just for > reference and was wondering if there is an easier method to get the > selected index of a row. > > Here is the Knockout example I am converting > http://jsfiddle.net/rniemeyer/gZC5k/ > > Here is what I am working on http://jsbin.com/yubigo/2/edit?html,output > > I know I can find the index by using something like this, this would be > for deleting a contact > > removeContact: function(e, detail, sender){ > > var obj = e.target.templateInstance.model.row; > var found_index = this.data.indexOf(obj); > if (found_index !== -1) { > this.data.splice(found_index,1); > } > } > > Or if I want to pass the index from the template I can do something like > using the polymer index syntax and assigning it to a html5 data > attribute such as data-idx > > <template repeat='{{c,idx in data}}'><tr> > <td> > <input value='{{idx}}' /> > <input value='{{c.firstName}}' /> > <div><a href='javascript:;' on-tap='{{removeContact}}' > data-idx='{{idx}}'>Delete</a></div> > </td> > <td><input value='{{c.lastName}}' /></td> > </tr> > </template> > > > > But having to add the polymer index syntax and data- attribute or having to > search for the index in js each time is a little bit of a pain especially > since Polymer already has the index for the selected row. > > > Is the selected index exposed in js somewhere that I am missing? > > Follow Polymer on Google+: plus.google.com/107187849809354688692 --- You received this message because you are subscribed to the Google Groups "Polymer" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/polymer-dev/d95ef006-ead5-49d6-8175-f78fc543d9b8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
