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nairobi/app/views/shared/_errors.html.erb
Javi Martín 1e883af9cd Don't count errors for the same field twice
The number of errors in a form includes several errors for the same
field. For example, if a title is mandatory and has to have at least 5
characters, leaving the title blank will result in two errors. So users
will be invited to look for two errors, but they'll only find one field
with errors.

So it's a bit more intuitive to show as many errors as fields having
errors.

Note we're excluding errors on `:base`, which is a bit of a hack for
errors in association fields. For example, if the title of one
translation is not present, `resource.errors.messages` will contain two
elements: one for the translation's title, and one for the `base` field.
This resulted in the count of errors being 2 when there was only one.

Also note I haven't found a way to count errors on all `has_many`
relations. That is, if two translations have a missing title field, only
one error will be mentioned in the message (as it did before this
commit).
2020-05-18 17:57:06 +02:00

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<% if resource.errors.any? %>
<div id="error_explanation" data-alert class="callout alert" data-closable>
<button class="close-button" aria-label="<%= t("application.close") %>" type="button" data-close>
<span aria-hidden="true">&times;</span>
</button>
<strong>
<% errors_count = resource.errors.messages.reject { |attribute| attribute == :base }.count %>
<%= pluralize errors_count, t("form.error"), t("form.errors") %>
<% if local_assigns[:message].present? %>
<%= message %>
<% else %>
<%= sanitize(t("form.not_saved", resource: t("form.#{resource.class.to_s.underscore}"))) %>
<% end %>
</strong>
</div>
<% end %>