Class: PgSearch::Configuration::Column

Inherits:
Object
  • Object
show all
Defined in:
lib/pg_search/configuration/column.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(column_name, weight, model, association = nil) ⇒ Column

Returns a new instance of Column.



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# File 'lib/pg_search/configuration/column.rb', line 8

def initialize(column_name, weight, model, association = nil)
  @column_name = column_name.to_s
  @weight = weight
  @model = model
  @association = association
end

Instance Attribute Details

#association ⇒ Object (readonly)

Returns the value of attribute association.



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# File 'lib/pg_search/configuration/column.rb', line 6

def association
  @association
end

#weight ⇒ Object (readonly)

Returns the value of attribute weight.



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# File 'lib/pg_search/configuration/column.rb', line 6

def weight
  @weight
end

Instance Method Details

#alias ⇒ Object 



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# File 'lib/pg_search/configuration/column.rb', line 36

def alias
  Configuration.alias(association.subselect_alias, @column_name)
end

#foreign? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pg_search/configuration/column.rb', line 32

def foreign?
  @association.present?
end

#full_name ⇒ Object 



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# File 'lib/pg_search/configuration/column.rb', line 19

def full_name
  "#{@model.connection.quote_table_name(table)}.#{@model.connection.quote_column_name(@column_name)}"
end

#table ⇒ Object 



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# File 'lib/pg_search/configuration/column.rb', line 15

def table
  foreign? ? @association.table_name : @model.table_name
end

#to_sql ⇒ Object 



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# File 'lib/pg_search/configuration/column.rb', line 23

def to_sql
  name = if foreign?
           "#{@association.subselect_alias}.#{self.alias}"
         else
           full_name
         end
  "coalesce(#{name}, '')"
end