Class: DbdocEngine::TableManagementService

Inherits:
Object
  • Object
show all
Defined in:
app/services/dbdoc_engine/table_management_service.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(table) ⇒ TableManagementService

Returns a new instance of TableManagementService.



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# File 'app/services/dbdoc_engine/table_management_service.rb', line 6

def initialize(table)
  @table = table
  @errors = []
end

Instance Attribute Details

#errors ⇒ Object (readonly)

Returns the value of attribute errors.



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# File 'app/services/dbdoc_engine/table_management_service.rb', line 4

def errors
  @errors
end

#table ⇒ Object (readonly)

Returns the value of attribute table.



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# File 'app/services/dbdoc_engine/table_management_service.rb', line 4

def table
  @table
end

Instance Method Details

#permanent_destroy ⇒ Object

Permanently removes a table from the database



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# File 'app/services/dbdoc_engine/table_management_service.rb', line 48

def permanent_destroy
  # Extract original table name from the current name
  original_name = extract_original_name(table.table_name)

  table_info = {
    table_name: original_name,
    group_id: table.db_design_table_group_id,
    description: table.description,
    permanently_deleted: true
  }

  if table.destroy
    # Log the permanent deletion to changelog
    DbDesignChangelog.log_change(
      DbDesignChangelog::ACTION_DELETE,
      DbDesignChangelog::ENTITY_TABLE,
      original_name,
      "Permanently deleted table '#{original_name}'",
      "Super Admin",
      table_info,
      nil
    )
    success_result
  else
    add_error("Unable to permanently delete table '#{original_name}'.")
    failure_result
  end
end

#restore ⇒ Object

Restores a soft-deleted table



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# File 'app/services/dbdoc_engine/table_management_service.rb', line 78

def restore
  # Extract the original name from the current name
  original_name = extract_original_name(table.table_name)

  # Check if another table with the same name exists
  if name_conflict?(original_name)
    add_error(I18n.t("dbdoc.errors.messages.unable_to_restore_table_duplicate", original_name: original_name))
    return failure_result
  end

  # Check if the table's group is soft-deleted
  if table_group_is_deleted?
    group_name = get_table_group_name
    add_error(I18n.t("dbdoc.errors.messages.cannot_restore_table_deleted_group",
                    table_name: original_name,
                    group_name: group_name))
    return failure_result
  end

  if table.update(table_name: original_name, deleted_at: nil)
    # Log the restoration to changelog
    DbDesignChangelog.log_change(
      DbDesignChangelog::ACTION_UPDATE,
      DbDesignChangelog::ENTITY_TABLE,
      original_name,
      "Restored deleted table '#{original_name}'",
      "Super Admin",
      { deleted: true },
      { deleted: false }
    )
    success_result
  else
    add_error("Unable to restore table '#{original_name}'.")
    failure_result
  end
end

#soft_delete ⇒ Object

Soft deletes a table if it's not referenced by other tables



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# File 'app/services/dbdoc_engine/table_management_service.rb', line 12

def soft_delete
  if foreign_key_dependencies?
    add_error(I18n.t("dbdoc.errors.messages.cannot_delete_referenced_table", table_name: table.table_name))
    return failure_result
  end

  # Store original name before changing it
  original_name = table.table_name

  # Append ID to the table name for soft deletion
  new_name = "#{original_name}_deleted_#{table.id}"

  if table.update(table_name: new_name, deleted_at: Time.current)
    # Log the soft deletion to changelog
    DbDesignChangelog.log_change(
      DbDesignChangelog::ACTION_DELETE,
      DbDesignChangelog::ENTITY_TABLE,
      original_name,
      "Soft deleted table '#{original_name}'",
      table.updated_by,
      {
        table_name: original_name,
        group_id: table.db_design_table_group_id,
        description: table.description,
        deleted: true
      },
      nil
    )
    success_result
  else
    add_error("Unable to delete table '#{original_name}'.")
    failure_result
  end
end