Class: Queries::Tag::Filter

Inherits:
Object
  • Object
show all
Defined in:
lib/queries/tag/filter.rb

Overview

!! does not inherit from base query

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params) ⇒ Filter

Returns a new instance of Filter.



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# File 'lib/queries/tag/filter.rb', line 19

def initialize(params)
  @keyword_id = [params[:keyword_id]].flatten.compact
  @options = params
end

Instance Attribute Details

#keyword_id ⇒ Object

Array, Integer



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# File 'lib/queries/tag/filter.rb', line 16

def keyword_id
  @keyword_id
end

#options ⇒ Object

General annotator options handling happens directly on the params as passed through to the controller, keep them together here



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# File 'lib/queries/tag/filter.rb', line 11

def options
  @options
end

Instance Method Details

#all ⇒ ActiveRecord::Relation

Returns:

  • (ActiveRecord::Relation) 


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# File 'lib/queries/tag/filter.rb', line 44

def all
  if a = and_clauses
    ::Tag.where(and_clauses).distinct
  else
    ::Tag.all
  end
end

#and_clauses ⇒ ActiveRecord::Relation

Returns:

  • (ActiveRecord::Relation) 


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# File 'lib/queries/tag/filter.rb', line 25

def and_clauses
  clauses = [
    ::Queries::Annotator.annotator_params(options, ::Tag),
    matching_keyword_id,
  ].compact

  a = clauses.shift
  clauses.each do |b|
    a = a.and(b)
  end
  a
end

#matching_keyword_id ⇒ Arel::Node?

Returns:

  • (Arel::Node, nil) 


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# File 'lib/queries/tag/filter.rb', line 39

def matching_keyword_id
  !keyword_id.empty? ? table[:keyword_id].eq_any(keyword_id)  : nil
end

#table ⇒ Arel::Table

Returns:

  • (Arel::Table) 


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# File 'lib/queries/tag/filter.rb', line 53

def table
  ::Tag.arel_table
end