class GearedPagination::PortionAtCursor::Match
Attributes
head[R]
tail[R]
Public Class Methods
new(head, tail)
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# File lib/geared_pagination/portions/portion_at_cursor.rb, line 87 def initialize(head, tail) @head, @tail = head, tail end
Public Instance Methods
condition_on(table, cursor)
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# File lib/geared_pagination/portions/portion_at_cursor.rb, line 91 def condition_on(table, cursor) conditions_on(table, cursor).reduce { |left, right| left.and(right) } end
Private Instance Methods
conditions_on(table, cursor)
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# File lib/geared_pagination/portions/portion_at_cursor.rb, line 96 def conditions_on(table, cursor) predicates.collect { |predicate| predicate.condition_on(table, cursor.fetch(predicate.attribute)) } end
predicates()
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# File lib/geared_pagination/portions/portion_at_cursor.rb, line 100 def predicates tail.collect { |order| Equal.new(order) }.including(Inequal.new(head)) end