Module: HashAsHiddenFields
- Included in:
- ApplicationHelper
- Defined in:
- vendor/plugins/blacklight/app/helpers/hash_as_hidden_fields.rb
Overview
Rails Helper methods to take a hash and turn it to form fields, works with hash nested with other hashes and arrays, standard rails serialization style. Oddly while Hash#to_query will do this for a URL query parameters, there seems to be no built in way to do it to create hidden form fields instead.
Code taken from marklunds.com/articles/one/314
This is used to serialize a complete current query from current params to form fields used for sort and change per-page
Instance Method Summary (collapse)
-
- (Object) hash_as_hidden_fields(hash)
Writes out zero or more elements, completely representing a hash passed in using Rails-style request parameters for hashes nested with arrays and other hashes.
Instance Method Details
Writes out zero or more elements, completely representing a hash passed in using Rails-style request parameters for hashes nested with arrays and other hashes.
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# File 'vendor/plugins/blacklight/app/helpers/hash_as_hidden_fields.rb', line 16 def hash_as_hidden_fields(hash) hidden_fields = [] flatten_hash(hash).each do |name, value| value = [value] if !value.is_a?(Array) value.each do |v| hidden_fields << hidden_field_tag(name, v.to_s, :id => nil) end end hidden_fields.join("\n") end |