ember.js - Ember: Add conditions in form-element to display field contents -

how add conditions in ember template. want achieve condition.

if(modalforadd == true) // if modalforadd true set model or property of each input textfield blank {   {{bs-form-element controltype="text" label="quantity" property=""}} } else  {   {{bs-form-element controltype="text" label="quantity" property="model.quantity"}} } 

here code template

    {{#bs-modal open=openmodalfordetails title="add new order" body=false footer=false}}     {{#bs-modal-body}}        {{#bs-form model=this action=(action "saveneworder" model "this")}}           {{bs-form-element controltype="text" label="item sku" property="model.item" id="item"}}            {{bs-form-element controltype="text" label="quantity" property="model.quantity" id="quantity"}}            {{bs-form-element controltype="text" label="description" property="model.description" id="description"}}            {{bs-form-element controltype="text" label="discount" property="model.discount" id="discount"}}            {{bs-form-element controltype="text" label="coupon" property="model.coupon" id="coupon"}}            {{bs-form-element controltype="text" label="price" property="model.price" id="price"}}         {{/bs-form}}     {{/bs-modal-body}}     {{bs-modal-footer closetitle="cancel" submittitle="add"}} {{/bs-modal}} 

the if helper has inline version can used subexpression.

you can do:

{{bs-form-element controltype="text" label="quantity" property=(if modalforadd "" "model.quantity")}}