I solved this problem as follows:
- removed function
setupController
from route - In html change code:
Resulting code is
{{#each item in model.arr}}
<tr>
{{#each day in item}}
{{#if day.isToday}}
<td class="today" {{action changeDay model.activeYear model.activeMonthNumber day.number}}>
{{day.number}}
{{else}}
{{#if day.isSelected}}
<td class="selected" {{action changeDay model.activeYear model.activeMonthNumber day.number}}>
{{else}}
<td class="day" {{action changeDay model.activeYear model.activeMonthNumber day.number}}>
{{/if}}
{{day.number}}
{{/if}}
</td>
{{/each}}
</tr>
{{/each}}