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 



81
82
83
 
# File 'lib/firebase/fquery.rb', line 81

def end_at(priority)
  queryEndingAtPriority(priority)
end

#equal_to(priority, child: child) ⇒ Object 



73
74
75
 
# File 'lib/firebase/fquery.rb', line 73

def equal_to(priority)
  queryEqualToPriority(priority)
end

#limit(limit) ⇒ Object 



89
90
91
 
# File 'lib/firebase/fquery.rb', line 89

def limit(limit)
  queryLimitedToNumberOfChildren(limit)
end

#name ⇒ Object

previously the ‘key’ method was called ‘name’



4
5
6
 
# File 'lib/firebase/fquery.rb', line 4

def name
  self.key
end

#off(handle = nil) ⇒ Object 



56
57
58
59
60
61
62
63
 
# File 'lib/firebase/fquery.rb', line 56

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

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



8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
# File 'lib/firebase/fquery.rb', line 8

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 



32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
 
# File 'lib/firebase/fquery.rb', line 32

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

#query(options = {}, &block) ⇒ Object 



93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
 
# File 'lib/firebase/fquery.rb', line 93

def query(options={}, &block)
  fb_query = self

  if options[:order_by_key]
    fb_query = fb_query.queryOrderedByKey
  end

  if options[:order_by_priority]
    fb_query = fb_query.queryOrderedByPriority
  end

  if options[:order_by]
    fb_query = fb_query.queryOrderedByChild(options[:order_by])
  end

  if options[:first]
    fb_query = fb_query.queryLimitedToFirst(options[:first])
  end

  if options[:last]
    fb_query = fb_query.queryLimitedToLast(options[:last])
  end

  if options[:starting_at] && options[:key]
    fb_query = fb_query.queryStartingAtValue(options[:starting_at], childKey: options[:key])
  elsif options[:starting_at]
    fb_query = fb_query.queryStartingAtValue(options[:starting_at])
  end

  if options[:ending_at] && options[:key]
    fb_query = fb_query.queryEndingAtValue(options[:ending_at], childKey: options[:key])
  elsif options[:ending_at]
    fb_query = fb_query.queryEndingAtValue(options[:ending_at])
  end

  if options[:equal_to] && options[:key]
    fb_query = fb_query.queryEqualToValue(options[:equal_to], childKey: options[:key])
  elsif options[:equal_to]
    fb_query = fb_query.queryEqualToValue(options[:equal_to])
  end

  if block
    event_type = options.fetch(:once, options.fetch(:on, FEventTypeValue))
    event_type = Firebase.convert_event_type(event_type)

    if options.key?(:once)
      return fb_query.observeSingleEventOfType(event_type, withBlock: block)
    else
      return fb_query.observeEventType(event_type, withBlock: block)
    end
  else
    fb_query
  end
end

#start_at(priority, child: child) ⇒ Object 



65
66
67
 
# File 'lib/firebase/fquery.rb', line 65

def start_at(priority)
  queryStartingAtPriority(priority)
end