Example on concatenating multiple faker generators?

[zanhsieh]

Hi,

Just wonder what should the right syntax for concatenating multiple faker generators.

I tried this on my mask.yml

version: 1
db_url: mongodb://mongodb:27017/development
models:
  - name: users
    fields:
      emailAddress: "\"%s.%s\" % [FFaker::Name.unique.first_name, FFaker::Name.unique.last_name]

But it returns error:

Masking users (475/18288)
Can't mask users

Traceback (most recent call last):
	29: from /usr/local/bundle/bin/mongo_masker:23:in `<main>'
	28: from /usr/local/bundle/bin/mongo_masker:23:in `load'
	27: from /usr/local/bundle/gems/mongo_masker-1.0.2/bin/mongo_masker:16:in `<top (required)>'
	26: from /usr/local/bundle/gems/thor-1.0.1/lib/thor/base.rb:485:in `start'
	25: from /usr/local/bundle/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
	24: from /usr/local/bundle/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
	23: from /usr/local/bundle/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
	22: from /usr/local/bundle/gems/mongo_masker-1.0.2/bin/mongo_masker:12:in `mask'
	21: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:22:in `mask'
	20: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:42:in `track_time'
	19: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:23:in `block in mask'
	18: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:23:in `each'
	17: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:24:in `block (2 levels) in mask'
	16: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:58:in `mask_document'
	15: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:75:in `mask_each_document'
	14: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:75:in `each_with_index'
	13: from /usr/local/bundle/gems/mongo-2.11.2/lib/mongo/collection/view/iterable.rb:50:in `each'
	12: from /usr/local/bundle/gems/mongo-2.11.2/lib/mongo/cursor.rb:152:in `each'
	11: from /usr/local/bundle/gems/mongo-2.11.2/lib/mongo/cursor.rb:152:in `loop'
	10: from /usr/local/bundle/gems/mongo-2.11.2/lib/mongo/cursor.rb:154:in `block in each'
	 9: from /usr/local/bundle/gems/mongo-2.11.2/lib/mongo/collection/view/iterable.rb:51:in `block in each'
	 8: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:77:in `block in mask_each_document'
	 7: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:112:in `create_mask'
	 6: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:112:in `each'
	 5: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:119:in `block in create_mask'
	 4: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:132:in `evalute_field_value'
	 3: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:132:in `eval'
	 2: from (eval):1:in `evalute_field_value'
	 1: from /usr/local/bundle/gems/ffaker-2.13.0/lib/ffaker/utils/unique_utils.rb:14:in `method_missing'
/usr/local/bundle/gems/ffaker-2.13.0/lib/ffaker/utils/unique_utils.rb:42:in `add_results_to_hash': FFaker::UniqueUtils::RetryLimitExceeded (FFaker::UniqueUtils::RetryLimitExceeded)
	26: from /usr/local/bundle/bin/mongo_masker:23:in `<main>'
	25: from /usr/local/bundle/bin/mongo_masker:23:in `load'
	24: from /usr/local/bundle/gems/mongo_masker-1.0.2/bin/mongo_masker:16:in `<top (required)>'
	23: from /usr/local/bundle/gems/thor-1.0.1/lib/thor/base.rb:485:in `start'
	22: from /usr/local/bundle/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
	21: from /usr/local/bundle/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
	20: from /usr/local/bundle/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
	19: from /usr/local/bundle/gems/mongo_masker-1.0.2/bin/mongo_masker:12:in `mask'
	18: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:22:in `mask'
	17: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:42:in `track_time'
	16: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:23:in `block in mask'
	15: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:23:in `each'
	14: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:24:in `block (2 levels) in mask'
	13: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:58:in `mask_document'
	12: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:75:in `mask_each_document'
	11: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:75:in `each_with_index'
	10: from /usr/local/bundle/gems/mongo-2.11.2/lib/mongo/collection/view/iterable.rb:50:in `each'
	 9: from /usr/local/bundle/gems/mongo-2.11.2/lib/mongo/cursor.rb:152:in `each'
	 8: from /usr/local/bundle/gems/mongo-2.11.2/lib/mongo/cursor.rb:152:in `loop'
	 7: from /usr/local/bundle/gems/mongo-2.11.2/lib/mongo/cursor.rb:154:in `block in each'
	 6: from /usr/local/bundle/gems/mongo-2.11.2/lib/mongo/collection/view/iterable.rb:51:in `block in each'
	 5: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:77:in `block in mask_each_document'
	 4: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:112:in `create_mask'
	 3: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:112:in `each'
	 2: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:119:in `block in create_mask'
	 1: from /usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:131:in `evalute_field_value'
/usr/local/bundle/gems/mongo_masker-1.0.2/lib/mongo_masker.rb:134:in `rescue in evalute_field_value': Can't eval `"%s.%s" % [FFaker::Name.unique.first_name, FFaker::Name.unique.last_name]` (RuntimeError)

Also, tried following in mask.yml but having similar errors.

"FFaker::Name.unique.first_name+\".\"+FFaker::Name.unique.last_name"
FFaker::Name.unique.first_name+'.'+FFaker::Name.unique.last_name
"Kernal::format(\"%s.%s\", FFaker::Name.unique.first_name, FFaker::Name.unique.first_name)"
FFaker::Name.unique.first_name.concat('.').concat(FFaker::Name.unique.last_name)

Please advice.

[zanhsieh]

/assign @yuyuvn

[hirokipf]

I think you can concat them in the following way.

emailAddress: "FFaker::Name.unique.first_name + '.' + FFaker::Name.unique.last_name"