Class: Queries::DataAttribute::ValueAutocomplete

Inherits:
Query::Autocomplete show all
Defined in:
lib/queries/data_attribute/value_autocomplete.rb

Instance Attribute Summary collapse

Attributes inherited from Query::Autocomplete

#dynamic_limit, #project_id, #query_string

Attributes inherited from Query

#query_string, #terms

Instance Method Summary collapse

Methods inherited from Query::Autocomplete

#autocomplete_cached, #autocomplete_cached_wildcard_anywhere, #autocomplete_common_name_exact, #autocomplete_common_name_like, #autocomplete_exact_id, #autocomplete_exactly_named, #autocomplete_named, #autocomplete_ordered_wildcard_pieces_in_cached, #cached_facet, #combine_or_clauses, #common_name_name, #common_name_table, #common_name_wild_pieces, #exactly_named, #fragments, #integers, #least_levenshtein, #match_wildcard_end_in_cached, #match_wildcard_in_cached, #named, #only_ids, #only_integers?, #parent, #parent_child_join, #parent_child_where, #pieces, #scope, #string_fragments, #wildcard_wrapped_integers, #wildcard_wrapped_years, #with_cached, #with_cached_like, #with_id, #with_project_id, #year_letter, #years

Methods inherited from Query

#alphabetic_strings, #alphanumeric_strings, base_name, #base_name, #base_query, #build_terms, #cached_facet, #end_wildcard, #levenshtein_distance, #match_ordered_wildcard_pieces_in_cached, #no_terms?, referenced_klass, #referenced_klass, #referenced_klass_except, #referenced_klass_intersection, #referenced_klass_union, #start_and_end_wildcard, #start_wildcard, #table, #wildcard_pieces

Constructor Details

#initialize(string, predicate_id: nil, project_id: nil) ⇒ ValueAutocomplete

Returns a new instance of ValueAutocomplete.



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# File 'lib/queries/data_attribute/value_autocomplete.rb', line 7

def initialize(string, predicate_id: nil, project_id: nil)
  @predicate_id = predicate_id
  super
end

Instance Attribute Details

#predicate_id ⇒ Object

Returns the value of attribute predicate_id.



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# File 'lib/queries/data_attribute/value_autocomplete.rb', line 5

def predicate_id
  @predicate_id
end

Instance Method Details

#autocomplete ⇒ Array

Returns of matching strings.

Returns:

  • (Array) —

    of matching strings



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# File 'lib/queries/data_attribute/value_autocomplete.rb', line 19

def autocomplete
  ::DataAttribute.where(where_sql).order(Arel.sql('LENGTH(value) ASC')).distinct.limit(50).pluck(:value, 'LENGTH(value)').map(&:first)
end

#matching_controlled_vocabulary_term_id ⇒ Arel::Nodes::Matches

Returns:

  • (Arel::Nodes::Matches) 


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# File 'lib/queries/data_attribute/value_autocomplete.rb', line 30

def matching_controlled_vocabulary_term_id
  return nil if query_string.nil?
  table[:controlled_vocabulary_term_id].eq(predicate_id)
end

#matching_value ⇒ Arel::Nodes::Matches

Returns:

  • (Arel::Nodes::Matches) 


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# File 'lib/queries/data_attribute/value_autocomplete.rb', line 24

def matching_value 
  return nil if query_string.nil?
  table[:value].matches(start_and_end_wildcard)
end

#where_sql ⇒ Scope

Returns:

  • (Scope) 


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# File 'lib/queries/data_attribute/value_autocomplete.rb', line 13

def where_sql
  with_project_id.and(matching_value.and(matching_controlled_vocabulary_term_id)).to_sql
end