Module: Sandthorn::EventInspector

Defined in:
lib/sandthorn/event_inspector.rb

Instance Method Summary collapse

Instance Method Details

#events_with_trace_info ⇒ Object 



48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/sandthorn/event_inspector.rb', line 48

def events_with_trace_info
  begin
    saved = Sandthorn.find aggregate_id, self.class  
  rescue Exception
    saved = []
  end
  
  unsaved = self.aggregate_events
  all = saved
    .concat(unsaved)
    .sort { |a, b| a[:aggregate_version] <=> b[:aggregate_version] }

  extracted = all.collect do |e|
    if e[:event_data].nil? && !e[:event_data].nil?
      data = Sandthorn.deserialize e[:event_data]
    else
      data = e[:event_data]
    end

    {
      aggregate_version: e[:aggregate_version],
      event_name: e[:event_name].to_sym, 
      event_data: data,
      event_metadata: e[:event_metadata]
    }
  end

  extracted
end

#has_event?(event_name, options = {}) ⇒ Boolean

Returns:

  • (Boolean) 


39
40
41
42
43
44
45
46
 
# File 'lib/sandthorn/event_inspector.rb', line 39

def has_event? event_name, options = {}
  matching_events = events_with_trace_info
    .select { |e| e[:event_name] == event_name }

  event_exists = matching_events.length > 0
  trace = has_trace? matching_events, options.fetch(:trace, {})
  !!(event_exists && trace)
end

#has_saved_event?(event_name, options = {}) ⇒ Boolean

Returns:

  • (Boolean) 


22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
 
# File 'lib/sandthorn/event_inspector.rb', line 22

def has_saved_event? event_name, options = {}
  saved = events_with_trace_info

  unless self.aggregate_events.empty?
    saved.reject! do |e| 
      e[:aggregate_version] >= self
        .aggregate_events.first[:aggregate_version]
    end
  end

  matching_events = saved.select { |e| e[:event_name] == event_name }
  event_exists = matching_events.length > 0
  trace = has_trace? matching_events, options.fetch(:trace, {})

  !!(event_exists && trace)
end

#has_unsaved_event?(event_name, options = {}) ⇒ Boolean

Returns:

  • (Boolean) 


3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
# File 'lib/sandthorn/event_inspector.rb', line 3

def has_unsaved_event? event_name, options = {}
  unsaved = events_with_trace_info

  if self.aggregate_events.empty?
    unsaved = []
  else
    unsaved.reject! do |e| 
      e[:aggregate_version] < self
        .aggregate_events.first[:aggregate_version]
    end
  end

  matching_events = unsaved.select { |e| e[:event_name] == event_name }
  event_exists = matching_events.length > 0
  trace = has_trace? matching_events, options.fetch(:trace, {})

  !!(event_exists && trace)
end