selection of usable module code for Rails development

Rails Helper

#---------- General Search -----------#
def self.search keywords
    return Media.all if keywords.empty? #if field was empty back all content
    search_fields = BASIC_SEARCH_FIELDS #list of table fields
    search_array = search_fields.map { |f| "#{f} LIKE ?" } #create new array with "LIKE ?"
    search_str = search_array.join(' OR ') #Join all cells of array
    search_values = keywords.map { |k| "%#{k}%"} * search_fields.count #create new array and add keyword * field.length
    Media.where(search_str, *search_values) # serach in select field on db
end