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class MigrateCommonParameterPermissions < ActiveRecord::Migration[4.2]
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class FakeFilter < ApplicationRecord
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self.table_name = 'filters'
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end
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def up
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all_new_permissions = Permission.where(:name => ['view_params', 'edit_params', 'create_params', 'destroy_params'])
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affected = Filter.includes(:permissions).where(:permissions => {:name => ['view_globals', 'edit_globals', 'create_globals', 'destroy_globals']})
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affected.each do |filter|
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new_names = filter.permissions.map { |old| old.name.sub(/globals/, 'params') }
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new_permissions = all_new_permissions.select do |new|
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new_names.include?(new.name)
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end
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fake_filter = FakeFilter.find(filter.id)
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new_search = "type = CommonParameter"
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new_search = '(' + filter.search + ') and ' + new_search if filter.search.present?
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fake_filter.update_attribute :search, new_search
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filter.permissions = new_permissions
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end
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Permission.where(:name => ['view_globals', 'edit_globals', 'create_globals', 'destroy_globals']).destroy_all
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end
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def down
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# we can't tell what if CommonParameter search was set by user or previous migration
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end
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end
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