NoMethodError in FindJobSearch#index

Showing /opt/app/views/find_job_search/search_pages/_filters.html.erb where line #20 raised:

undefined method `get_selected_value' for #<ActionView::Base:0x00000005fd84a0>
Extracted source (around line #20):
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<option value="remote" >Remote</option>
<%= @regions.each do |region| %>
<option value="<%= region.id %>" <%= get_selected_value(@alert.geographic_regions.pluck(:id), region.id) %>><%= region.name %></option>
<% end %>
</select>
</div>

Trace of template inclusion: #<ActionView::Template app/views/find_job_search/index.html.erb locals=[]>

Rails.root: /opt

Application Trace | Framework Trace | Full Trace

Request

Parameters:

{"button_track_sign"=>"Rm9yIEpvYnM%3D%0A", "page"=>"4"}

Response

Headers:

None