Module: Queries::Concerns::DataAttributes

Overview

Linking DataAttribute to queries that reference DataAttributes

For filter queries: !! requires ‘set_data_attributes_params` be called in initialize()

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Helpers

#boolean_param

Class Method Details

.merge_clausesObject

TODO: this as class method is bad,

it prevents us from adding optimizing logic
that restricts the number of clauses


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# File 'lib/queries/concerns/data_attributes.rb', line 339

def self.merge_clauses
  [
    :data_attribute_import_exact_pair_facet,
    :data_attribute_exact_pair_facet,
    :data_attribute_import_predicate_facet,
    :data_attribute_predicate_id_facet,
    :data_attribute_wildcard_pair_facet,
    :data_attribute_import_wildcard_pair_facet,
    :data_attribute_without_predicate_id_facet,
    :data_attributes_facet,
    :value_facet,
    :import_value_facet
  ]
end

.paramsObject



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# File 'lib/queries/concerns/data_attributes.rb', line 9

def self.params
  [
    :data_attributes,

    :data_attribute_import_exact_pair,
    :data_attribute_import_exact_value,
    :data_attribute_import_predicate,
    :data_attribute_import_wildcard_value,
    :data_attribute_import_wildcard_pair,

    :data_attribute_exact_pair,
    :data_attribute_exact_value,
    :data_attribute_predicate_id,
    :data_attribute_wildcard_pair,
    :data_attribute_wildcard_value,
    :data_attribute_without_predicate_id,

    data_attribute_exact_pair: [],
    data_attribute_exact_value: [],
    data_attribute_predicate_id: [],
    data_attribute_wildcard_pair: [],
    data_attribute_wildcard_value: [],
    data_attribute_without_predicate_id: [],

    data_attribute_import_wildcard_pair: [],
    data_attribute_import_exact_pair: [],
    data_attribute_import_exact_value: [],
    data_attribute_import_predicate: [],
    data_attribute_import_wildcard_value: [],
  ]
end

Instance Method Details

#data_attribute_exact_pair_facetObject



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# File 'lib/queries/concerns/data_attributes.rb', line 299

def data_attribute_exact_pair_facet
  return nil if data_attribute_exact_pair.blank?
  a = []
  data_attribute_exact_pair.each do |k,v|
    a.push data_attribute_table[:controlled_vocabulary_term_id].eq(k).and( data_attribute_table[:value].eq(v) )
  end
  w = a.shift
  a.each do |c|
    w = w.or(c)
  end

  referenced_klass.joins(:internal_attributes).where(w)
end

#data_attribute_import_exact_pair_facetObject



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# File 'lib/queries/concerns/data_attributes.rb', line 313

def data_attribute_import_exact_pair_facet
  return nil if data_attribute_import_exact_pair.blank?
  a = []
  data_attribute_import_exact_pair.each do |k,v|
    a.push data_attribute_table[:import_predicate].eq(k).and( data_attribute_table[:value].eq(v) )
  end
  w = a.shift
  a.each do |c|
    w = w.or(c)
  end

  referenced_klass.joins(:import_attributes).where(w)
end

#data_attribute_import_predicate_facetObject



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# File 'lib/queries/concerns/data_attributes.rb', line 198

def data_attribute_import_predicate_facet
  return nil if data_attribute_import_predicate.empty?
  referenced_klass.joins(:import_attributes).where(data_attributes: {import_predicate: data_attribute_import_predicate})
end

#data_attribute_import_wildcard_pair_facetObject



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# File 'lib/queries/concerns/data_attributes.rb', line 285

def data_attribute_import_wildcard_pair_facet
  return nil if data_attribute_import_wildcard_pair.blank?
  a = []
  data_attribute_import_wildcard_pair.each do |k,v|
    a.push data_attribute_table[:import_predicate].eq(k).and( data_attribute_table[:value].matches(wildcard_value(v)) )
  end
  w = a.shift
  a.each do |c|
    w = w.or(c)
  end

  referenced_klass.joins(:import_attributes).where(w)
end

#data_attribute_predicate_id_facetObject



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# File 'lib/queries/concerns/data_attributes.rb', line 193

def data_attribute_predicate_id_facet
  return nil if data_attribute_predicate_id.blank?
  referenced_klass.joins(:internal_attributes).where(data_attributes: {controlled_vocabulary_term_id: data_attribute_predicate_id})
end

#data_attribute_tableArel::Table

Returns:

  • (Arel::Table)


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# File 'lib/queries/concerns/data_attributes.rb', line 189

def data_attribute_table
  ::DataAttribute.arel_table
end

#data_attribute_wildcard_pair_facetObject



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# File 'lib/queries/concerns/data_attributes.rb', line 271

def data_attribute_wildcard_pair_facet
  return nil if data_attribute_wildcard_pair.blank?
  a = []
  data_attribute_wildcard_pair.each do |k,v|
    a.push data_attribute_table[:controlled_vocabulary_term_id].eq(k).and( data_attribute_table[:value].matches(wildcard_value(v)) )
  end
  w = a.shift
  a.each do |c|
    w = w.or(c)
  end

  referenced_klass.joins(:internal_attributes).where(w)
end

#data_attribute_without_predicate_id_facetObject



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# File 'lib/queries/concerns/data_attributes.rb', line 204

def data_attribute_without_predicate_id_facet
  return nil if data_attribute_without_predicate_id.blank?
  not_these = referenced_klass.left_joins(:internal_attributes).where(data_attributes: {controlled_vocabulary_term_id: data_attribute_without_predicate_id})

  # a Not exists without using .exists
  s = 'WITH not_these AS (' + not_these.to_sql + ') ' +
    referenced_klass.joins("LEFT JOIN not_these AS not_these1 ON not_these1.id = #{table.name}.id")
    .where('not_these1.id IS NULL').to_sql

  referenced_klass.from("(#{s}) as #{table.name}")
end

#data_attributes_facetObject



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# File 'lib/queries/concerns/data_attributes.rb', line 327

def data_attributes_facet
  return nil if data_attributes.nil?
  if data_attributes
    referenced_klass.joins(:data_attributes).distinct
  else
    referenced_klass.where.missing(:data_attributes)
  end
end

#import_value_facetObject



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# File 'lib/queries/concerns/data_attributes.rb', line 246

def import_value_facet
  return nil if data_attribute_import_exact_value.blank? && data_attribute_import_wildcard_value.blank?

  a,b = nil, nil

  if data_attribute_import_wildcard_value.present?
    v = data_attribute_import_wildcard_value.collect{|z| wildcard_value(z) } # TODO: should be standardized much earlier on
    a = data_attribute_table[:value].matches_any(v)
  end

  b = data_attribute_table[:value].in(data_attribute_import_exact_value) if data_attribute_import_exact_value.present?

  q = referenced_klass.joins(:import_attributes)

  if a && b
    q.where(a.or(b))
  elsif a
    q.where(a)
  elsif b
    q.where(b)
  else
    nil
  end
end

#set_data_attributes_params(params) ⇒ Object



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# File 'lib/queries/concerns/data_attributes.rb', line 171

def set_data_attributes_params(params)
  @data_attribute_import_exact_pair = params[:data_attribute_import_exact_pair]
  @data_attribute_import_exact_value = params[:data_attribute_import_exact_value]
  @data_attribute_import_predicate = params[:data_attribute_import_predicate]
  @data_attribute_import_wildcard_value = params[:data_attribute_import_wildcard_value]

  @data_attribute_predicate_id = params[:data_attribute_predicate_id]
  @data_attribute_without_predicate_id = params[:data_attribute_without_predicate_id]
  @data_attribute_exact_value = params[:data_attribute_exact_value]
  @data_attribute_wildcard_value = params[:data_attribute_wildcard_value]

  @data_attribute_exact_pair = params[:data_attribute_exact_pair]
  @data_attribute_wildcard_pair = params[:data_attribute_wildcard_pair]
  @data_attribute_import_wildcard_pair = params[:data_attribute_import_wildcard_pair]
  @data_attributes = boolean_param(params, :data_attributes)
end

#value_facetObject



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# File 'lib/queries/concerns/data_attributes.rb', line 221

def value_facet
  return nil if data_attribute_exact_value.blank?  && data_attribute_wildcard_value.blank?

  a,b = nil, nil

  if data_attribute_wildcard_value.present?
    v = data_attribute_wildcard_value.collect{|a| wildcard_value(a) } # TODO: should be standardized much earlier on
    a = data_attribute_table[:value].matches_any(v)
  end

  b = data_attribute_table[:value].in(data_attribute_exact_value) if data_attribute_exact_value.present?

  q = referenced_klass.joins(:internal_attributes)

  if a && b
    q.where(a.or(b))
  elsif a
    q.where(a)
  elsif b
    q.where(b)
  else
    nil
  end
end

#wildcard_value(value) ⇒ Object

TODO: get rid of this



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# File 'lib/queries/concerns/data_attributes.rb', line 217

def wildcard_value(value)
  '%' + value.to_s.strip.gsub(/\s+/, '%') + '%'
end