Ferreteria/v0.6/code/sys/Requests: Difference between revisions
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* At execution time, something calls <code>{{fmt/clade|Woozalia\Ferret\Sys\Events|InputReq}}->Go()</code> | * At execution time, something calls <code>{{fmt/clade|Woozalia\Ferret\Sys\Events|InputReq}}->Go()</code> | ||
* ...which then calls the Engine object or a helper to do the operation, e.g. <code>Schema->DoImport()</code> | * ...which then calls the Engine object or a helper to do the operation, e.g. <code>Schema->DoImport()</code> | ||
** ...which is where the thing is actually done, e.g. SQL code is sent to the DB Engine through the Connection. | |||
...but this also happens somewhere: | ...but this also happens somewhere: | ||
* <code>{{fmt/clade|Woozalia\Ferret\Sys\Data|DbConn}}->DoAdminRequest()</code> calls <code>AdminRq->AskEngine()</code> with itself as the argument. | * <code>{{fmt/clade|Woozalia\Ferret\Sys\Data|DbConn}}->DoAdminRequest()</code> calls <code>AdminRq->AskEngine()</code> with itself as the argument. | ||
* <code>AdminRq->AskEngine()</code> does any necessary calculations, then calls the appropriate Engine object or sub-object (e.g. Schema) | * <code>AdminRq->AskEngine()</code> does any necessary calculations, then calls the appropriate Engine object or sub-object to do the operation (e.g. <code>Schema->DoExport</code>). | ||
Revision as of 02:13, 11 March 2025
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Request subsystems
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There are (currently) the following types of request:
- Requests to a database engine:
- Input requests:
The purpose of engine requests is to allow consolidation of all the pieces needed to perform operations without knowing what engine or connection they will be used on.
Sequence of Events
- At execution time, something calls
InputReq->Go() - ...which then calls the Engine object or a helper to do the operation, e.g.
Schema->DoImport()- ...which is where the thing is actually done, e.g. SQL code is sent to the DB Engine through the Connection.
...but this also happens somewhere:
DbConn->DoAdminRequest()callsAdminRq->AskEngine()with itself as the argument.AdminRq->AskEngine()does any necessary calculations, then calls the appropriate Engine object or sub-object to do the operation (e.g.Schema->DoExport).