Storing your data in a database

Now that the data classes are ready, we can implement the database layer. Qt provides a ready-to-use sql module. Various databases are supported in Qt using SQL database drivers. In gallery-desktop, we will use the SQLITE driver, which is included in the sql module and perfectly fits the use case:

  • A very simple database schema: No need for complex queries
  • Very few or no concurrent transactions: No need for a complex transaction model
  • A single-purpose database: No need to spawn a system service, the database is stored in a single file and does not need to be accessed by multiple applications

The database will be accessed from multiple locations; we need to have a single entry point for it. Create a new C++ ...

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