scinote-web/app/services/user_data_deletion.rb

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class UserDataDeletion
def self.delete_team_data(team)
ActiveRecord::Base.logger = Logger.new(STDOUT)
team.transaction do
# Destroy tiny_mce_assets
if team.tiny_mce_assets.present?
team.tiny_mce_assets.each do |tiny_mce_asset|
tiny_mce_asset.image.purge
tiny_mce_asset.destroy!
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end
end
team.repositories.each do |repository|
repository.repository_rows.find_each do |repository_row|
# Destroy repository_cell assets
repository_row
.repository_cells
.where(value_type: 'RepositoryAssetValue').each do |repository_cell|
repository_cell.value.asset.file.purge
repository_cell.value.asset.destroy!
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end
end
repository.destroy
end
team.projects.each do |project|
project.reports.destroy_all
project.activities.destroy_all
project.experiments.each do |experiment|
experiment.my_modules.each do |my_module|
# Destroy result assets
my_module.results.each do |result|
result.result_table.delete if result.result_table.present?
result.table.delete if result.table.present?
next unless result.asset
result.asset.file.purge
result.asset.destroy!
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end
my_module.activities.destroy_all
my_module.inputs.destroy_all
my_module.outputs.destroy_all
my_module.results.destroy_all
my_module.my_module_tags.destroy_all
my_module.task_comments.destroy_all
my_module.my_module_repository_rows.destroy_all
my_module.user_my_modules.destroy_all
my_module.report_elements.destroy_all
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my_module.protocols.each { |p| p.update(parent_id: nil) }
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my_module.protocols.each do |protocol|
destroy_protocol(protocol)
end
my_module.user_assignments.destroy_all
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my_module.delete
end
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# Destroy workflow image
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experiment.workflowimg.purge
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experiment.activities.destroy_all
experiment.report_elements.destroy_all
experiment.my_module_groups.delete_all
experiment.user_assignments.destroy_all
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experiment.delete
end
project.user_projects.destroy_all
project.tags.destroy_all
project.project_comments.destroy_all
project.report_elements.destroy_all
project.user_assignments.destroy_all
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project.delete
end
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team.protocols.each { |p| p.update(parent_id: nil) }
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team.protocols.where(my_module: nil).each do |protocol|
destroy_protocol(protocol)
end
team.protocol_keywords.destroy_all
User.where(current_team_id: team).each do |user|
user.update(current_team_id: nil)
end
team.reports.destroy_all
team.user_assignments.destroy_all
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team.destroy!
# raise ActiveRecord::Rollback
end
end
def self.destroy_protocol(protocol)
protocol.steps.each do |step|
# Destroy step assets
if step.assets.present?
step.assets.each do |asset|
asset.file.purge
asset.destroy!
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end
end
# Destroy step
step.tables.destroy_all
step.step_tables.delete_all
step.step_texts.destroy_all
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step.report_elements.destroy_all
step.step_comments.destroy_all
step.step_assets.destroy_all
step.checklists.destroy_all
step.assets.destroy_all
step.tiny_mce_assets.destroy_all
step.delete
end
# Destroy protocol
protocol.protocol_protocol_keywords.destroy_all
protocol.protocol_keywords.destroy_all
protocol.destroy
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end
def self.destroy_notifications(user)
# Find all notifications where user is the only reference
# on the notification, and destroy all such notifications
# (user_notifications are destroyed when notification is
# destroyed). We try to do this efficiently (hence in_groups_of).
nids_all = user.notifications.pluck(:id)
nids_all.in_groups_of(1000, false) do |nids|
Notification
.where(id: nids)
.joins(:user_notifications)
.group('notifications.id')
.having('count(notification_id) <= 1')
.destroy_all
end
# Now, simply destroy all user notification relations left
user.user_notifications.destroy_all
end
end