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Éibhear Ó hAnluain 5e3dfd98a8 Analysis of how enode starts up for an Oracle session 
Idea being to plan what needs to be done for mysql/mariadb session
2019-05-23 16:54:48 +01:00

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Processes

Startup

  • (enode project)

    • (enode-available-projects)

      • (enode-get-projects)

        • (load-file enode-projects-file)

      • (enode-project-available project)

        • Test to see if (e.g.) ~/development/<project>/scripts/sql/<project>_ENODE.sql exists
    • (setq enode-current-connection-type <connection-type-of-project>)

    • (enode-start-engine)

      • (enode-oracle-start-sql-engine)

        • (call-interactively 'sql-oracle). The command-line option set for sqlplus in the emacs customisation system include /nolog, which leaves the need to connect to a database until after the process has commenced.
        • Set SQL buffer settings
    • Open the *_ENODE.sql file for the project
    • (setq enode-up t) to declare that enode has started.

    • (enode-connection) called interactively

      • (enode-get-connections)

        • (enode-load-connections-list)

          • (load-file enode-connections-file)
      • (enode-get-connections). As above.

      • (enode-add-new-connection connection-description)

        • (enode-load-connections-list). As above.
        • (enode-get-connections). As above.

        • Get attributes:

          • conn-user: Username
          • conn-connection: Database connection: modelled by Oracle's TNSNames details
          • conn-prompt: a three-character designator to use as the SQL*Plus prompt.
        • Add these details as a record in the current-type-connections list.
        • Update all-connections with the new current-type-connections list.
        • Update enode-connections-file.
        • (enode-load-connections-list). As above.

      • (enode-connect connection-description)

        • (enode-get-connections). As above.
        • Access and, maybe, set enode-passwords-in-use.

        • (enode-oracle-connect conn-user conn-pass conn-connection conn-prompt)

          • Issue the commands to the already-created iSQL session:

            connect <conn-user>/<conn-pass>@<conn-connection>
set serverout on
set sqlprompt "<conn-prompt>> "
        • (setq enode-currrent-connection connection-description)
        • (setq enode-connected t)