html - How to validate field doesnt contain . and , -

i have form include number fields

<%= f.number_field :contribution_to_sales, class: 'form-control',:pattern=>["\d+"] %> 

it allows 2.0 want should not allow 2.0 . how that?

you missing anchors on regular expression causes "2" in "2.0" matched (on browsers). regex use is:

<%= ... pattern: "^\d+$" %> 

you should doing validation on model well, html5 pattern attribute may not obeyed browsers. add:

class yourmodel < activerecord::base   validates :contribution_to_sales, numericality: { only_integer: true }   ... end