Details
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Task
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Status: Closed
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Resolution: Gone away
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None
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None
Description
Hi, here we have two documents Entity and EntityLink (embedded into Entity).
Running this scripts (mongoid 3.1.3) will:
- create 2 entities ("entity" and "entity_b") using Entity.create!(...)
- create an embedded EntityLink in each of the two (using entity.links.find_or_create_by(...))
- destroy the links created above with entity.links.destroy_all
- reloading the entities with entity.reload
- see the links reappear
As you can see the first test (test A) fails, while the others pass. Why?
thanks
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require 'mongoid' |
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class Entity |
include Mongoid::Document
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field :name, type: String |
embeds_many :links, class_name: "EntityLink" |
end
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class EntityLink |
include Mongoid::Document
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embedded_in :entity |
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field :le, type: Moped::BSON::ObjectId |
field :last_seen, type: Integer |
end
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def add_link first_entity, second_entity, update_attributes = true |
first_link = first_entity.links.find_or_create_by(le: second_entity._id)
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first_link.update_attributes!(last_seen: Time.now.to_i) if update_attributes |
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second_link = second_entity.links.find_or_create_by(le: first_entity._id)
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second_link.update_attributes!(last_seen: Time.now.to_i) if update_attributes |
end
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def expect exp |
puts exp ? 'ok' : 'FAIL' |
end
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Mongoid.load! './config_mongoid.yaml', :development |
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puts '===test A====================================================' |
Mongoid.purge!
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entity = Entity.create!(name: 'entity') |
entity_b = Entity.create!(name: 'entity_b') |
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add_link entity, entity_b
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expect entity.links.size == 1 |
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entity.links.destroy_all
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expect entity.links.size == 0 |
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entity.reload
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# this fails, why??
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expect entity.links.size == 0 |
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puts '===test B====================================================' |
Mongoid.purge!
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entity = Entity.create!(name: 'entity') |
entity_b = Entity.create!(name: 'entity_b') |
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add_link entity, entity_b
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expect entity.links.size == 1 |
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entity.reload
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entity.links.destroy_all
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expect entity.links.size == 0 |
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entity.reload
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# using reaload before entity.links.destroy_all make this test pass
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expect entity.links.size == 0 |
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puts '====test C===================================================' |
Mongoid.purge!
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entity = Entity.create!(name: 'entity') |
entity_b = Entity.create!(name: 'entity_b') |
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add_link entity, entity_b, false |
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expect entity.links.size == 1 |
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entity.links.destroy_all
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expect entity.links.size == 0 |
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entity.reload
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# without updating EntityLink attributes it seems to work
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expect entity.links.size == 0 |
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puts '=====test D==================================================' |
Mongoid.purge!
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entity = Entity.create!(name: 'entity') |
entity_b = Entity.create!(name: 'entity_b') |
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add_link entity, entity_b
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expect entity.links.size == 1 |
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entity.links.where({}).destroy_all
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expect entity.links.size == 0 |
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entity.reload
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# using entity.links.where({}).destroy_all (instead of entity.links.destroy_all) make this test pass
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expect entity.links.size == 0 |
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