view problems

we have some problemas with imgLiquid plugin and ember
@zzarcon i understand but i don't know what i am doing wrong, 
i did observes('controller.length').on('didInsertElement') , but is not working. i the template i am using {{#each results}} {{/each}} to show data.

i know the observes is call when that you put into changed but i don't what i need to put into because controller.length is not working