Class: Thorderbolt::RangeBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/thorderbolt/range_builder.rb

Overview

Builds a part of query for using a range as a sorting parameter

Class Method Summary collapse

Class Method Details

.build(table, column, range) ⇒ Object 



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# File 'lib/thorderbolt/range_builder.rb', line 7

def build(table, column, range)
  full_column_name = "#{connection.quote_table_name(table)}"\
                     ".#{connection.quote_column_name(column)}"

  closing_condition = range.exclude_end? ? '<' : '<='

  template = "#{full_column_name} >= :minimal "\
             "AND #{full_column_name} #{closing_condition} :maximum"

  range_bounds = [range.begin, range.end]
  range_hash = { minimal: range_bounds.min, maximum: range_bounds.max }

  ActiveRecord::Base.sanitize_sql([template, range_hash])
end