hi, in my view their is an image field. so i copied it form res.partneras like below.
<field name="image" widget='image' class="oe_left oe_avatar" options='{"preview_image": "image_medium", "size": [90, 90]}'/>
it generates an error.
but when i am using the code with no class as like below
<field name="image" widget='image' options='{"preview_image": "image_medium", "size": [90, 90]}'/>
it will not generates any error. what is the difference and how to include that class to may view?