ActiveRecord::Promise (original) (raw)

Methods

P

• pending?

T

• then

V

• value

Instance Public methods

pending?()Link

Returns whether the associated query is still being executed or not.

Source: show | on GitHub

def pending? @future_result.pending? end

then(&block)Link

Returns a new ActiveRecord::Promise that will apply the passed block when the value is accessed:

Post.async_pick(:title).then { |title| title.upcase }.value
# => "POST TITLE"

Source: show | on GitHub

def then(&block) Promise.new(@future_result, @block ? @block >> block : block) end

value()Link

Returns the query result. If the query wasn’t completed yet, accessing value will block until the query completes. If the query failed, value will raise the corresponding error.

Source: show | on GitHub

def value return @value if defined? @value

result = @future_result.result @value = if @block @block.call(result) else result end end