scinote-web/db/migrate/20200622155632_repository_table_state_update.rb

# frozen_string_literal: true

class RepositoryTableStateUpdate < ActiveRecord::Migration[6.0]
  class TempStateModel < ApplicationRecord
    self.table_name = 'repository_table_states'
  end

  def up
    TempStateModel.find_each do |table_state|
      state = table_state.state
      order_state = state.dig('order', 0, 0)

      unless order_state
        order = state.dig('order', '0')
        state['order'] = [order]
        order_state = state.dig('order', 0, 0)
      end

      state['order'][0][0] = order_state.to_i + 2 if order_state.to_i > 5

      if state['columns'].is_a? Hash
        columns_array = []
        state['columns'].each { |k, v| columns_array[k.to_i] = v }
        state['columns'] = columns_array
      end

      2.times do
        state['columns'].insert(6,
                                'search' => {
                                  'regex' => false, 'smart' => true, 'search' => '', 'caseInsensitive' => true
                                },
                                'visible' => false)
      end
      if state['ColReorder']
        state['ColReorder'] = state['ColReorder'].map { |i| i.to_i > 5 ? i.to_i + 2 : i.to_i } + [6, 7]
      end
      table_state.update(state: state)
    rescue StandardError
      # Corrupted state will be cleared and default state will be generated on load
      table_state.update(state: {})
    end
  end
end