Module: JetstreamBridge::ModelUtils

Defined in:
lib/jetstream_bridge/core/model_utils.rb

Class Method Summary collapse

Class Method Details

.ar_class?(klass) ⇒ Boolean

Returns:

  • (Boolean) 


13
14
15
 
# File 'lib/jetstream_bridge/core/model_utils.rb', line 13

def ar_class?(klass)
  defined?(ActiveRecord::Base) && klass <= ActiveRecord::Base
end

.assign_known_attrs(record, attrs) ⇒ Object 



23
24
25
26
27
28
 
# File 'lib/jetstream_bridge/core/model_utils.rb', line 23

def assign_known_attrs(record, attrs)
  attrs.each do |k, v|
    setter = :"#{k}="
    record.public_send(setter, v) if record.respond_to?(setter)
  end
end

.constantize(name) ⇒ Object 



9
10
11
 
# File 'lib/jetstream_bridge/core/model_utils.rb', line 9

def constantize(name)
  name.to_s.split('::').reduce(Object) { |m, c| m.const_get(c) }
end

.find_or_init_by_best(klass, *keysets) ⇒ Object

find_or_initialize_by on the first keyset whose columns exist; else new



31
32
33
34
35
36
37
 
# File 'lib/jetstream_bridge/core/model_utils.rb', line 31

def find_or_init_by_best(klass, *keysets)
  keysets.each do |keys|
    next if keys.nil? || keys.empty?
    return klass.find_or_initialize_by(keys) if has_columns?(klass, keys.keys)
  end
  klass.new
end

.has_columns?(klass, *cols) ⇒ Boolean

Returns:

  • (Boolean) 


17
18
19
20
21
 
# File 'lib/jetstream_bridge/core/model_utils.rb', line 17

def has_columns?(klass, *cols)
  return false unless ar_class?(klass)

  cols.flatten.all? { |c| klass.column_names.include?(c.to_s) }
end

.json_dump(obj) ⇒ Object 



39
40
41
42
43
44
45
 
# File 'lib/jetstream_bridge/core/model_utils.rb', line 39

def json_dump(obj)
  return obj if obj.is_a?(String)

  Oj.dump(obj, mode: :compat)
rescue Oj::Error, TypeError
  obj.to_s
end

.json_load(str) ⇒ Object 



47
48
49
50
51
52
53
 
# File 'lib/jetstream_bridge/core/model_utils.rb', line 47

def json_load(str)
  return str if str.is_a?(Hash)

  Oj.load(str.to_s, mode: :strict)
rescue Oj::Error
  {}
end