Class: FQuery

Inherits:
Object
  • Object
show all
Defined in:
lib/firebase/fquery.rb

Instance Method Summary collapse

Instance Method Details

#end_at(priority, child: child) ⇒ Object 



68
69
70
 
# File 'lib/firebase/fquery.rb', line 68

def end_at(priority)
  queryEndingAtPriority(priority)
end

#off(handle = nil) ⇒ Object 



51
52
53
54
55
56
57
58
 
# File 'lib/firebase/fquery.rb', line 51

def off(handle=nil)
  if handle
    removeObserverWithHandle(handle)
  else
    removeAllObservers
  end
  return self
end

#on(event_type, options = {}, &and_then) ⇒ Object 



3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
# File 'lib/firebase/fquery.rb', line 3

def on(event_type, options={}, &and_then)
  and_then = and_then || options[:completion]
  raise "event handler is required" unless and_then
  raise "event handler must accept one or two arguments" unless and_then.arity == 1 || and_then.arity == 2

  event_type = Firebase.convert_event_type(event_type)
  disconnect_block = options[:disconnect]
  raise ":disconnect handler must not accept any arguments" if disconnect_block && disconnect_block.arity > 0

  if and_then.arity == 1
    if disconnect_block
      return observeEventType(event_type, withBlock:and_then, withCancelBlock:disconnect_block)
    else
      return observeEventType(event_type, withBlock:and_then)
    end
  else
    if disconnect_block
      return observeEventType(event_type, andPreviousSiblingNameWithBlock:and_then, withCancelBlock:disconnect_block)
    else
      return observeEventType(event_type, andPreviousSiblingNameWithBlock:and_then)
    end
  end
end

#once(event_type, options = {}, &and_then) ⇒ Object 



27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
 
# File 'lib/firebase/fquery.rb', line 27

def once(event_type, options={}, &and_then)
  and_then = and_then || options[:completion]
  raise "event handler is required" unless and_then
  raise "event handler must accept one or two arguments" unless and_then.arity == 1 || and_then.arity == 2

  event_type = Firebase.convert_event_type(event_type)
  disconnect_block = options[:disconnect]
  raise ":disconnect handler must not accept any arguments" if disconnect_block && disconnect_block.arity > 0

  if and_then.arity == 1
    if disconnect_block
      return observeSingleEventOfType(event_type, withBlock:and_then, withCancelBlock:disconnect_block)
    else
      return observeSingleEventOfType(event_type, withBlock:and_then)
    end
  else
    if disconnect_block
      return observeSingleEventOfType(event_type, andPreviousSiblingNameWithBlock:and_then, withCancelBlock:disconnect_block)
    else
      return observeSingleEventOfType(event_type, andPreviousSiblingNameWithBlock:and_then)
    end
  end
end

#start_at(priority, child: child) ⇒ Object 



60
61
62
 
# File 'lib/firebase/fquery.rb', line 60

def start_at(priority)
  queryStartingAtPriority(priority)
end