Mercurial > gemma
view pkg/controllers/surveys.go @ 5574:271888ef85bc surveysperbottleneckid
Finalize use of bottleneck id instead of name.
Main feaure is the restructuring of the /surveys endpoint.
The endpoint now takes queryparameters as qualifiers.
/surveys?id={id} returns surveys to a given bottleck {id}
/surveys?name={name} & date={date} returns surveys for given {name}
of a bottleneck and {date} for a surveydate.
This is needed mainly because there is some backwards incompatibility
when reviewing sounding results where the summary of a sr import
contains only the name instead of the id of the according bottleneck.
To bridge this mismatch the survey endpoint could be queried for the
sr to review given the surveydate and the name of the bottleneck.
Premise is here, that a date and a bottleneck's name is specific enough
to identify the correct survey with the correct bottleneck.
author | Thomas Junk <thomas.junk@intevation.de> |
---|---|
date | Wed, 21 Jul 2021 14:33:35 +0200 |
parents | 3b842e951317 |
children | 6709530f002e |
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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" mw "gemma.intevation.de/gemma/pkg/middleware" ) const ( listSurveysByIdSQL = ` SELECT DISTINCT s.bottleneck_id, s.date_info::text, s.depth_reference, COALESCE(g.objname, 'ERROR: MISSING GAUGE') AS gauge_objname, r.value AS waterlevel_value, COALESCE(s.surtyp, 'ERROR: MISSING SURVEY TYPE') AS surtype FROM waterway.bottlenecks AS b JOIN waterway.sounding_results AS s ON b.bottleneck_id = s.bottleneck_id LEFT JOIN waterway.gauges AS g ON b.gauge_location = g.location AND s.date_info::timestamptz <@ g.validity LEFT JOIN waterway.gauges_reference_water_levels AS r ON s.depth_reference = r.depth_reference AND g.location = r.location AND g.validity = r.validity WHERE b.bottleneck_id = $1` listSurveysByNameDateSQL = ` SELECT DISTINCT s.bottleneck_id, s.date_info::text, s.depth_reference, COALESCE(g.objname, 'ERROR: MISSING GAUGE') AS gauge_objname, r.value AS waterlevel_value, COALESCE(s.surtyp, 'ERROR: MISSING SURVEY TYPE') AS surtype FROM waterway.bottlenecks AS b JOIN waterway.sounding_results AS s ON b.bottleneck_id = s.bottleneck_id LEFT JOIN waterway.gauges AS g ON b.gauge_location = g.location AND s.date_info::timestamptz <@ g.validity LEFT JOIN waterway.gauges_reference_water_levels AS r ON s.depth_reference = r.depth_reference AND g.location = r.location AND g.validity = r.validity WHERE b.objnam = $1 and s.date_info = $2` ) func listSurveys(req *http.Request) (jr mw.JSONResult, err error) { v := req.URL.Query() bottleneckName := v.Get("name") date := v.Get("date") id := v.Get("id") var rows *sql.Rows surveys := []*models.Survey{} if date == "" && bottleneckName == "" && id != "" { rows, err = mw.JSONConn(req).QueryContext(req.Context(), listSurveysByIdSQL, id) } else if date != "" && bottleneckName != "" && id == "" { rows, err = mw.JSONConn(req).QueryContext(req.Context(), listSurveysByNameDateSQL, bottleneckName, date) } else { jr = mw.JSONResult{ Result: struct { Surveys []*models.Survey `json:"surveys"` }{surveys}, } return } if err != nil { return } defer rows.Close() // 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 surType string var level sql.NullInt64 if err = rows.Scan( &survey.BottleneckID, &survey.DateInfo, &survey.DepthReference, &survey.ReferenceGauge, &level, &surType, ); err != nil { return } switch { case level.Valid: survey.WaterLevelValue = &level.Int64 case survey.DepthReference == "ZPG": survey.WaterLevelValue = new(int64) } survey.SurveyType = models.SurveyType(surType) surveys = append(surveys, &survey) } if err = rows.Err(); err != nil { return } jr = mw.JSONResult{ Result: struct { Surveys []*models.Survey `json:"surveys"` }{surveys}, } return }