Class: MetaSearch::Searches::MongoidSearchBuilder

Inherits:
SimpleDelegator
  • Object
show all
Defined in:
lib/meta_search/searches/mongoid.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(relation, params, options) ⇒ MongoidSearchBuilder

Returns a new instance of MongoidSearchBuilder.



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# File 'lib/meta_search/searches/mongoid.rb', line 10

def initialize relation, params, options
  super(relation)
  @relation = relation
  @params, @options = params, options
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object 



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# File 'lib/meta_search/searches/mongoid.rb', line 77

def method_missing name, *attrs, &block
  relation.send(name, *attrs, &block)
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/meta_search/searches/mongoid.rb', line 67

def options
  @options
end

#params ⇒ Object (readonly)

Returns the value of attribute params.



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# File 'lib/meta_search/searches/mongoid.rb', line 67

def params
  @params
end

#relation ⇒ Object (readonly)

Returns the value of attribute relation.



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# File 'lib/meta_search/searches/mongoid.rb', line 67

def relation
  @relation
end

Instance Method Details

#base ⇒ Object 



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# File 'lib/meta_search/searches/mongoid.rb', line 69

def base
  self
end

#build ⇒ Object 



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# File 'lib/meta_search/searches/mongoid.rb', line 16

def build
  params.each_pair do |field_query, value|
    field, query = field_query.to_s.scan(metasearch_regexp).first
    case query.to_sym
    when :equals, :eq
      @relation = relation.where(field => value)
    when :does_not_equal, :ne, :not_eq
      @relation = relation.where(field.to_sym.ne => value)
    when :contains, :like, :matches
      @relation = relation.where(field => /#{value}/i)
    when :does_not_contain, :nlike, :not_matches
      @relation = relation.where(field.to_sym.not => /#{value}/i)
    when :starts_with, :sw
      @relation = relation.where(field.to_sym => /\A#{Regexp.quote(value)}/i)
    when :does_not_start_with, :dnsw
      @relation = relation.where(field.to_sym.not => /\A#{Regexp.quote(value)}/i)
    when :ends_with, :ew
      @relation = relation.where(field.to_sym => /#{Regexp.quote(value)}\z/i)
    when :does_not_end_with, :dnew
      @relation = relation.where(field.to_sym.not => /#{Regexp.quote(value)}\z/i)
    when :greater_than, :gt
      @relation = relation.where(field.to_sym.gt => value)
    when :less_than, :lt
      @relation = relation.where(field.to_sym.lt => value)
    when :greater_than_or_equal_to, :gte, :gteq
      @relation = relation.where(field.to_sym.gte => value)
    when :less_than_or_equal_to, :lte, :lteq
      @relation = relation.where(field.to_sym.lte => value)
    when :in
      @relation = relation.where(field.to_sym.in => Array.wrap(value))
    when :not_in, :ni
      @relation = relation.where(field.to_sym.nin => Array.wrap(value))
    when :is_true
      @relation = relation.where(field => true)
    when :is_false
      @relation = relation.where(field => false)
    when :is_present
      @relation = relation.where(field.to_sym.exists => true)
    when :is_blank
      @relation = relation.where(field.to_sym.exists => false)
    when :is_null
      @relation = relation.where(field => nil)
    when :is_not_null
      @relation = relation.where(field.to_sym.ne => nil)
    else
      raise [field_query, value].inspect
    end
  end
  self
end

#klass ⇒ Object 



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# File 'lib/meta_search/searches/mongoid.rb', line 73

def klass
  relation
end

#metasearch_regexp ⇒ Object 



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# File 'lib/meta_search/searches/mongoid.rb', line 94

def metasearch_regexp
  field_names = klass.fields.map(&:second).map(&:name)
  conditions = MetaSearch::DEFAULT_WHERES.map {|condition| condition[0...-1]} # pop tail options

  /\A(#{field_names.join('|')})_(#{conditions.join('|')})\z/
end

#respond_to?(name, include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/meta_search/searches/mongoid.rb', line 82

def respond_to? name, include_private = false
  name.to_s =~ metasearch_regexp or super
end