43 lines
1.1 KiB
Ruby
43 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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class Project < ApplicationRecord
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validates :name, :code, presence: true
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validates :code, exclusion: { in: %w[new] }, uniqueness: true, format: { with: /\A[a-z]{2,}\z/ }
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has_many :tasks, dependent: :restrict_with_exception
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has_rich_text :description
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normalizes :code, with: ->(code) { code.strip.downcase.gsub(/\W+/, '') }
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after_commit :create_tasks_number_sequence, on: :create
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after_destroy_commit :drop_tasks_number_sequence
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def to_param
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return unless id
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code
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end
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def tasks_number_sequence_name
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"_seq_projects__#{code}_tasks_number"
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end
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def next_task_number
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result = self.class.connection.exec_query "SELECT NEXT VALUE FOR #{tasks_number_sequence_name} AS task_number"
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raise "Expected one result, got #{result.count}" unless result.one?
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result.first['task_number']
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end
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private
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def create_tasks_number_sequence
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self.class.connection.execute "CREATE SEQUENCE IF NOT EXISTS #{tasks_number_sequence_name} AS INT UNSIGNED"
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end
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def drop_tasks_number_sequence
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self.class.connection.execute "DROP SEQUENCE IF EXISTS #{tasks_number_sequence_name}"
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end
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end
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