Mercurial > gemma
view pkg/controllers/surveys.go @ 3302:ec6163c6687d
'Historicise' gauges on import
Gauge data sets will be updated or a new version will be inserted
depending on temporal validity and a timestamp marking the last
update in the RIS-Index of a data set. The trigger on date_info is
removed because the value is actually an attribut coming from the
RIS-Index.
Gauge measurements and predictions are associated to the version with
matching temporal validity. Bottlenecks are always associated to the
actual version of the gauge, although this might change as soon as
bottlenecks are 'historicised', too.
author | Tom Gottfried <tom@intevation.de> |
---|---|
date | Thu, 16 May 2019 18:41:43 +0200 |
parents | 8a8680e70d2e |
children | 02951a62e8c6 |
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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) 2018, 2019 by via donau // – Österreichische Wasserstraßen-Gesellschaft mbH // Software engineering by Intevation GmbH // // Author(s): // * Sascha Wilde <sascha.wilde@intevation.de> // * Sascha L. Teichmann <sascha.teichmann@intevation.de> // * Bernhard Reiter <bernhard.reiter@intevation.de> package controllers import ( "database/sql" "net/http" "gemma.intevation.de/gemma/pkg/models" "github.com/gorilla/mux" ) const ( listSurveysSQL = ` SELECT s.bottleneck_id, s.date_info::text, s.depth_reference, g.objname AS gauge_objname, r.value AS waterlevel_value FROM waterway.bottlenecks AS b JOIN waterway.gauges AS g ON b.gauge_location = g.location AND b.gauge_validity = g.validity JOIN waterway.sounding_results AS s ON b.id = s.bottleneck_id LEFT JOIN waterway.gauges_reference_water_levels AS r USING (depth_reference, location, validity) WHERE b.objnam = $1` ) func listSurveys( _ interface{}, req *http.Request, db *sql.Conn, ) (jr JSONResult, err error) { bottleneckName := mux.Vars(req)["bottleneck"] var rows *sql.Rows rows, err = db.QueryContext(req.Context(), listSurveysSQL, bottleneckName) if err != nil { return } defer rows.Close() surveys := []*models.Survey{} // as we do not use the values here, we could simply the code here // to work without an explicit mdels/surverys.go // (like done in controllers/search.go) for rows.Next() { var survey models.Survey var level sql.NullInt64 if err = rows.Scan( &survey.BottleneckID, &survey.DateInfo, &survey.DepthReference, &survey.ReferenceGauge, &level, ); err != nil { return } if level.Valid { survey.WaterLevelValue = &level.Int64 } surveys = append(surveys, &survey) } if err = rows.Err(); err != nil { return } jr = JSONResult{ Result: struct { Surveys []*models.Survey `json:"surveys"` }{surveys}, } return }