Mercurial > gemma
view pkg/imports/dsec.go @ 5718:3d497077f888 uploadwg
Implemented direct file upload as alternative import method for WG.
For testing and data corrections it is useful to be able to import
waterway gauges data directly by uploading a xml file.
author | Sascha Wilde <wilde@sha-bang.de> |
---|---|
date | Thu, 18 Apr 2024 19:23:19 +0200 |
parents | 6270951dda28 |
children |
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// This is Free Software under GNU Affero General Public License v >= 3.0 // without warranty, see README.md and license for details. // // SPDX-License-Identifier: AGPL-3.0-or-later // License-Filename: LICENSES/AGPL-3.0.txt // // Copyright (C) 2019 by via donau // – Österreichische Wasserstraßen-Gesellschaft mbH // Software engineering by Intevation GmbH // // Author(s): // * Sascha L. Teichmann <sascha.teichmann@intevation.de> package imports import ( "context" "database/sql" "errors" "fmt" "gemma.intevation.de/gemma/pkg/log" ) // DeleteSection is a Job to delete a section from the database. type DeleteSection struct { ID int64 `json:"id"` } // DSECJobKind is the import queue type identifier. const DSECJobKind JobKind = "dsec" type dsecJobCreator struct{} func init() { RegisterJobCreator(DSECJobKind, dsecJobCreator{}) } func (dsecJobCreator) Description() string { return "delete section" } func (dsecJobCreator) AutoAccept() bool { return false } func (dsecJobCreator) Create() Job { return new(DeleteSection) } func (dsecJobCreator) Depends() [2][]string { return [2][]string{{"sections"}} } const ( dsecExistsSQL = ` SELECT EXISTS ( SELECT 1 FROM waterway.sections WHERE id = $1 AND staging_done) ` dsecStageDoneSQL = ` DELETE FROM waterway.sections WHERE id IN ( SELECT key from import.track_imports WHERE import_id = $1 AND deletion AND relation = 'waterway.sections'::regclass)` ) // StageDone finally removes the section from the database. func (dsecJobCreator) StageDone( ctx context.Context, tx *sql.Tx, id int64, _ Feedback, ) error { res, err := tx.ExecContext(ctx, dsecStageDoneSQL, id) if err != nil { return err } n, err := res.RowsAffected() if err != nil { log.Errorf( "RowsAffected returned an error. Missing driver support?") return nil } if n == 0 { return errors.New( "nothing deleted. Probably due to missing access rights") } return err } // CleanUp of a section delete import is a NOP. func (*DeleteSection) CleanUp() error { return nil } // Do prepares the deletion of the section. func (dsec *DeleteSection) Do( ctx context.Context, importID int64, conn *sql.Conn, feedback Feedback, ) (any, error) { tx, err := conn.BeginTx(ctx, nil) if err != nil { return nil, err } defer tx.Rollback() var found bool if err := tx.QueryRowContext(ctx, dsecExistsSQL, dsec.ID).Scan(&found); err != nil { return nil, err } if !found { return nil, fmt.Errorf("no section with id %d found", dsec.ID) } feedback.Info("Prepare deletion of section with id %d", dsec.ID) if _, err := tx.ExecContext( ctx, trackImportDeletionSQL, importID, "waterway.sections", dsec.ID, true, ); err != nil { return nil, err } if err := tx.Commit(); err != nil { return nil, err } return dsec, nil }