Mercurial > gemma
view pkg/imports/dst.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> // * Sascha Wilde <wilde@intevation.de> package imports import ( "context" "database/sql" "fmt" ) // DeleteStretch is a Job to delete a stretch from the database. type DeleteStretch struct { ID int64 `json:"id"` } // DSTJobKind is the import queue type identifier. const DSTJobKind JobKind = "dst" type dstJobCreator struct{} func init() { RegisterJobCreator(DSTJobKind, dstJobCreator{}) } func (dstJobCreator) Description() string { return "delete stretch" } func (dstJobCreator) AutoAccept() bool { return false } func (dstJobCreator) Create() Job { return new(DeleteStretch) } func (dstJobCreator) Depends() [2][]string { return [2][]string{{"stretches"}} } const ( dstExistsSQL = ` SELECT EXISTS ( SELECT 1 FROM users.stretches WHERE id = $1 AND staging_done) ` dstStageDoneSQL = ` DELETE FROM users.stretches WHERE id IN ( SELECT key from import.track_imports WHERE import_id = $1 AND deletion AND relation = 'users.stretches'::regclass)` ) // StageDone finally removes the stretch from the database. func (dstJobCreator) StageDone( ctx context.Context, tx *sql.Tx, id int64, _ Feedback, ) error { _, err := tx.ExecContext(ctx, dstStageDoneSQL, id) return err } // CleanUp of a stretch delete import is a NOP. func (*DeleteStretch) CleanUp() error { return nil } // Do prepares the deletion of the stretch. func (dst *DeleteStretch) 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, dstExistsSQL, dst.ID).Scan(&found); err != nil { return nil, err } if !found { return nil, fmt.Errorf("no stretch with id %d found", dst.ID) } feedback.Info("Prepare deletion of stretch with id %d", dst.ID) if _, err := tx.ExecContext( ctx, trackImportDeletionSQL, importID, "users.stretches", dst.ID, true, ); err != nil { return nil, err } if err := tx.Commit(); err != nil { return nil, err } return dst, nil }