elasticsearch_helper.rb
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module ElasticsearchHelper
def self.searchable_types
{
:all => { label: _("All Results")},
:community => { label: _("Communities")},
:event => { label: _("Events")},
:person => { label: _("People")}
}
end
def self.search_filters
{
:lexical => { label: _("Alphabetical Order")},
:recent => { label: _("More Recent Order")},
:access => { label: _("More accessed")}
}
end
def fields_from_model
klass::SEARCHABLE_FIELDS.map do |key, value|
if value[:weight]
"#{key}^#{value[:weight]}"
else
"#{key}"
end
end
end
def get_query text, klass=nil
query = {}
unless text.blank?
text = text.downcase
query = {
query: {
match_all: {
}
},
filter: {
regexp: {
name: {
value: ".*" + text + ".*" }
}
},
suggest: {
autocomplete: {
text: text,
term: {
field: "name",
suggest_mode: "always"
}
}
}
}
end
query
end
def process_results
selected_type = (params[:selected_type]|| :all).to_sym
if selected_type == :all
search_from_all_models
else
search_from_model selected_type
end
end
def search_from_all_models
models = []
query = get_query params[:query]
ElasticsearchHelper::searchable_types.keys.each {| model | models.append( model.to_s.classify.constantize) if model != :all }
Elasticsearch::Model.search(query, models, size: default_per_page(params[:per_page])).page(params[:page]).records
end
def search_from_model model
begin
klass = model.to_s.classify.constantize
query = get_query params[:query], klass
klass.search(query, size: default_per_page(params[:per_page])).page(params[:page]).records
rescue
[]
end
end
def default_per_page per_page
per_page ||= 10
end
end