Mercurial > gemma
view pkg/controllers/surveys.go @ 2624:9dbaf69c7a66
Improve geoserver config to better calculate bounding boxes
* Disable the use of estimated extents for the postgis storage
configuration for geoserver, which is set via the gemma middleware.
This way we are able to get better bounding boxes for many layers
where the postgis function `ST_EstimatedExtent()` would be far off.
author | Bernhard Reiter <bernhard@intevation.de> |
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date | Wed, 13 Mar 2019 16:18:39 +0100 |
parents | 8a8680e70d2e |
children | ec6163c6687d |
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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, bg.objname AS gauge_objname, r.value AS waterlevel_value FROM ( ( SELECT * FROM waterway.bottlenecks AS b, waterway.gauges AS g WHERE b.fk_g_fid = g.location ) AS bg JOIN waterway.sounding_results AS s ON bg.id = s.bottleneck_id ) LEFT JOIN waterway.gauges_reference_water_levels AS r ON s.depth_reference = r.depth_reference AND bg.location = r.gauge_id WHERE bg.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 }