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is there support for pattern attribute when using form_for?
<%= form_for order_form do |f| %>
<%= f.label "name" %>
<%= f.text_field :name, required: true %>
<%= f.label "Number" %>
<%= f.telephone_field :phone, pattern: "\\d{10}" %>
<%= f.submit %>
I'm trying to put together a regex pattern to ensure that phone numbers are in correct format. My problem is that the pattern attribute wont take regex only strings
<%= f.telephone_field :phone, pattern: /\d{10}/ %> doesnt work
so when i write the regex as a string it causes problems, (like having to escape backslashes e.g.
"\\d{10}" == /\d{10}/
should i just forgo using form_for on this form or is there a way to use form_for and pattern matching together
839
=~ is Ruby's basic pattern-matching operator. When one operand is a regular expression and the other is a string then the regular expression is used as a pattern to match against the string. (This operator is equivalently defined by Regexp and String so the order of String and Regexp do not matter.
A regular expression is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings. Ruby regular expressions i.e. Ruby regex for short, helps us to find particular patterns inside a string. Two uses of ruby regex are Validation and Parsing.
Ruby | Regexp match() functionRegexp#match() : force_encoding?() is a Regexp class method which matches the regular expression with the string and specifies the position in the string to begin the search. Return: regular expression with the string after matching it.
I was trying some similar but I work in Rails 5.1.4 My code is:
<%= form.telephone_field :telefono, id: :person_telefono,
:pattern => '\d{10}', :placeholder => "solo numeros"%>
Try to adapte it for your program and rails version.
Regards
187
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