I am struggling to figure out how to use simple form with rails 5 so that I can show full error messages in my forms. All I get is a box at the top with a message that says:
Please review the problems below:
Instead of a list of problems or any highlighted form fields - i don't get anything.
I have followed the advice in this post and replaced all references to error in my initialiser with 'full_error', but that only solves the problem for the parent form - nested fields still just get an incomplete error message. Does anyone know how to identify errors in simple form?
# Use this setup block to configure all options available in SimpleForm.
SimpleForm.setup do |config|
config.error_notification_class = 'alert alert-danger'
config.button_class = 'btn btn-green'
config.boolean_label_class = nil
config.wrappers :vertical_form, tag: 'div', class: 'form-group', error_class: 'has-error' do |b|
b.use :html5
b.use :placeholder
b.optional :maxlength
b.optional :pattern
b.optional :min_max
b.optional :readonly
b.use :label, class: 'control-label'
b.use :input, class: 'form-control'
b.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }
b.use :hint, wrap_with: { tag: 'p', class: 'help-block' }
end
config.wrappers :vertical_file_input, tag: 'div', class: 'form-group', error_class: 'has-error' do |b|
b.use :html5
b.use :placeholder
b.optional :maxlength
b.optional :readonly
b.use :label, class: 'control-label'
b.use :input
b.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }
b.use :hint, wrap_with: { tag: 'p', class: 'help-block' }
end
config.wrappers :vertical_boolean, tag: 'div', class: 'form-group', error_class: 'has-error' do |b|
b.use :html5
b.optional :readonly
b.wrapper tag: 'div', class: 'checkbox' do |ba|
ba.use :label_input
end
b.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }
b.use :hint, wrap_with: { tag: 'p', class: 'help-block' }
end
config.wrappers :vertical_radio_and_checkboxes, tag: 'div', class: 'form-group', error_class: 'has-error' do |b|
b.use :html5
b.optional :readonly
b.use :label, class: 'control-label'
b.use :input
b.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }
b.use :hint, wrap_with: { tag: 'p', class: 'help-block' }
end
config.wrappers :horizontal_form, tag: 'div', class: 'form-group', error_class: 'has-error' do |b|
b.use :html5
b.use :placeholder
b.optional :maxlength
b.optional :pattern
b.optional :min_max
b.optional :readonly
b.use :label, class: 'col-sm-3 control-label'
b.wrapper tag: 'div', class: 'col-sm-9' do |ba|
ba.use :input, class: 'form-control'
ba.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }
ba.use :hint, wrap_with: { tag: 'p', class: 'help-block' }
end
end
config.wrappers :horizontal_file_input, tag: 'div', class: 'form-group', error_class: 'has-error' do |b|
b.use :html5
b.use :placeholder
b.optional :maxlength
b.optional :readonly
b.use :label, class: 'col-sm-3 control-label'
b.wrapper tag: 'div', class: 'col-sm-9' do |ba|
ba.use :input
ba.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }
ba.use :hint, wrap_with: { tag: 'p', class: 'help-block' }
end
end
config.wrappers :horizontal_boolean, tag: 'div', class: 'form-group', error_class: 'has-error' do |b|
b.use :html5
b.optional :readonly
b.wrapper tag: 'div', class: 'col-sm-offset-3 col-sm-9' do |wr|
wr.wrapper tag: 'div', class: 'checkbox' do |ba|
ba.use :label_input
end
wr.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }
wr.use :hint, wrap_with: { tag: 'p', class: 'help-block' }
end
end
config.wrappers :horizontal_radio_and_checkboxes, tag: 'div', class: 'form-group', error_class: 'has-error' do |b|
b.use :html5
b.optional :readonly
b.use :label, class: 'col-sm-3 control-label'
b.wrapper tag: 'div', class: 'col-sm-9' do |ba|
ba.use :input
ba.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }
ba.use :hint, wrap_with: { tag: 'p', class: 'help-block' }
end
end
config.wrappers :inline_form, tag: 'div', class: 'form-group', error_class: 'has-error' do |b|
b.use :html5
b.use :placeholder
b.optional :maxlength
b.optional :pattern
b.optional :min_max
b.optional :readonly
b.use :label, class: 'sr-only'
b.use :input, class: 'form-control'
b.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }
b.use :hint, wrap_with: { tag: 'p', class: 'help-block' }
end
config.wrappers :multi_select, tag: 'div', class: 'form-group', error_class: 'has-error' do |b|
b.use :html5
b.optional :readonly
b.use :label, class: 'control-label'
b.wrapper tag: 'div', class: 'form-inline' do |ba|
ba.use :input, class: 'form-control'
ba.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }
ba.use :hint, wrap_with: { tag: 'p', class: 'help-block' }
end
end
# Wrappers for forms and inputs using the Bootstrap toolkit.
# Check the Bootstrap docs (http://getbootstrap.com)
# to learn about the different styles for forms and inputs,
# buttons and other elements.
config.default_wrapper = :vertical_form
config.wrapper_mappings = {
check_boxes: :vertical_radio_and_checkboxes,
radio_buttons: :vertical_radio_and_checkboxes,
file: :vertical_file_input,
boolean: :vertical_boolean,
datetime: :multi_select,
date: :multi_select,
time: :multi_select
}
end
FORM
<%= simple_form_for(@proposal) do |f| %>
<%= f.error_notification %>
<% @proposal.errors.full_messages.each do |msg| %>
<%= li= msg %>
<% end %>
<div class="form-inputs" style="margin-bottom: 50px">
<!-- General Organisation details -->
<div class="row">
<div class="col-md-12">
<%= f.input :title, :label => "Title" %>
</div>
</div>
<div class="row">
<div class="col-md-12">
<%= f.input :byline, :label => "Tagline" %>
</div>
</div>
<div class="row">
<div class="col-md-12">
<%= f.input :description, as: :text, :label => "Outline your proposal", input_html: { rows: 15 } %>
</div>
</div>
<!-- Package: :ethics considerations -->
<div class="row">
<div class="col-md-12">
<div class="form_title">Research Ethics</div>
</div>
</div>
<div class="row">
<div class="col-md-12">
<%= f.simple_fields_for :ethics do |f| %>
<%= f.error_notification %>
<%= render 'package/ethics/ethics_fields', f: f %>
<% end %>
<%= link_to_add_association 'Add another ethics issue', f, :ethics, partial: 'package/ethics/ethics_fields' %>
</div>
</div>
</div>
<div class="row">
<div class="col-md-10 col-md-offset-1" style="margin-top: 50px">
<div class="form-actions">
<%= f.button :submit %>
</div>
</div>
</div>
<% end %>
NESTED FIELDS
<div class="nested-fields">
<%# @proposal.ethics.errors.full_messages.each do |e| %>
<li><%#= e %></li>
<%# end %>
<div class="form-inputs">
<div class="row">
<div class="col-md-12 ">
<%= f.select :category, [ "Risk of harm", "Informed consent", "Anonymity and Confidentiality", "Deceptive practices", "Right to withdraw"], { label: "Principle" }, id: "main_category" %>
<%= f.select :subcategory, [], {}, id: "sub_category", disabled: true %>
<%= f.input :consideration, as: :text, :label => "Identify the ethics considerations?", :input_html => {:rows => 8} %>
<%= f.input :plan, as: :text, :label => "How will these considerations be managed?", :input_html => {:rows => 8} %>
</div>
</div>
</div>
<div class="row">
<div class="col-md-6" style="margin-top: 20px; margin-bottom: 50px">
<%= link_to_remove_association 'Remove this ethical issue', f %>
</div>
</div>
</div>
It looks like you are getting haml and erb mixed up in your error displaying code.
This:
<% @proposal.errors.full_messages.each do |msg| %>
<%= li= msg %>
<% end %>
should look more like this:
<% if @proposal.errors.any? %>
<ul>
<% @proposal.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
<% end %>
I'm guessing you are using Cocoon so you'll need to set that up correctly but there is a gotcha when using Rails 5.
You'll need something like the following in your models:
class Proposal < ApplicationRecord
has_many: :ethics, inverse_of: :proposal
accepts_nested_attributes_for :ethics ...
...
and
class Ethic < ApplicationRecord
belongs_to :proposal, inverse_of: :ethics
...
note the has_many .. inverse_of clause which works round a bug in Rails 5.
If you setup the accepts_nested_attributes_for clause correctly I think @proposal.errors should contain all the errors for the form.