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Encapsulation

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  • Generally any specific SQL commands should be placed in PGSQLDAM or any other DAM that is being used. Avoid using direct SQL where possible. Exceptions can be made where performance is a concern.
  • Put most ‘work’ methods in the main table classes so that they are accessible from all parts of Theatre Manager (Windows, Web, Reports, Future Features). If a query/table class requires the functionality it should inherit from the main table class and add appropriate fields to do so. For example, a method that calculates subscription prices is stored in tF_SUBSCRIPTION because that is the database table that stores the subscription.