This module will enhance the functionality of numeric fields to restrict 0 as a value. User will get warning while adding 0 in numeric field while using this widget module.
After installing module, add "required_numeric" widget on the numeric fields where you want to restrict 0 as a value.
Add widget 'required_numeric' as shown below.
<field name="list_price" widget="required_numeric"/>
Warning will be shown as shown below.
