Mercurial > gemma
annotate pkg/controllers/search.go @ 1030:bf10a7f990cc
refac: fairway profile retrieves current data from store
author | Thomas Junk <thomas.junk@intevation.de> |
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date | Wed, 24 Oct 2018 15:09:06 +0200 |
parents | 96ea805d44b9 |
children | 146245d2198f |
rev | line source |
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1017
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1 // This is Free Software under GNU Affero General Public License v >= 3.0 |
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2 // without warranty, see README.md and license for details. |
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3 // |
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4 // SPDX-License-Identifier: AGPL-3.0-or-later |
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5 // License-Filename: LICENSES/AGPL-3.0.txt |
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6 // |
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7 // Copyright (C) 2018 by via donau |
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH |
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9 // Software engineering by Intevation GmbH |
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10 // |
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11 // Author(s): |
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12 // * Sascha Wilde <sascha.wilde@intevation.de> |
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13 |
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14 package controllers |
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15 |
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16 import ( |
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17 "database/sql" |
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18 "net/http" |
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19 "regexp" |
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20 "strconv" |
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21 "strings" |
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22 |
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23 "gemma.intevation.de/gemma/pkg/models" |
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24 ) |
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25 |
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26 const ( |
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27 searchHectometreSQL = `SELECT COALESCE(json_agg(r),'[]') |
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28 FROM (SELECT (location_code).hectometre || ' rhm' AS name, |
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29 ST_AsGeoJSON(geom)::json AS geom, 'rhm' AS type |
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30 FROM waterway.distance_marks_virtual |
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31 WHERE (location_code).hectometre = $1) r` |
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32 searchBottleneckSQL = `SELECT COALESCE(json_agg(r),'[]') |
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33 FROM (SELECT objnam AS name, |
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34 ST_AsGeoJSON(ST_Centroid(area))::json AS geom, |
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35 'bottleneck' AS type |
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36 FROM waterway.bottlenecks |
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37 WHERE objnam ILIKE $1) r` |
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38 ) |
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39 |
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40 var rkmRegex = regexp.MustCompile( |
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41 "^[[:space:]]*([0-9]+)([,.]([0-9]))?[[:space:]]*$", |
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42 ) |
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43 |
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44 func searchFeature( |
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45 input interface{}, |
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46 req *http.Request, |
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47 db *sql.Conn, |
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48 ) (jr JSONResult, err error) { |
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49 |
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50 s := input.(*models.SearchRequest) |
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51 |
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52 if len(s.SearchString) == 0 { |
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53 err = JSONError{http.StatusBadRequest, |
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54 "error: empty search string"} |
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55 return |
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56 } |
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57 |
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58 var result string |
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59 |
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60 m := rkmRegex.FindStringSubmatch(s.SearchString) |
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61 if len(m) != 0 { |
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62 // Handle search for river kilometre: |
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63 var hectometre int |
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64 if hectometre, err = strconv.Atoi(m[1]); err != nil { |
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65 return |
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66 } |
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67 |
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68 hectometre *= 10 |
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69 if m[3] != "" { |
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70 var h int |
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71 if h, err = strconv.Atoi(m[3]); err != nil { |
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72 return |
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73 } |
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74 hectometre += h |
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75 } |
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76 |
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77 err = db.QueryRowContext( |
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78 req.Context(), |
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79 searchHectometreSQL, |
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80 hectometre, |
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81 ).Scan(&result) |
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82 } else { |
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83 // Hande search for bottlencks: |
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84 err = db.QueryRowContext( |
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85 req.Context(), |
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86 searchBottleneckSQL, |
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87 "%"+s.SearchString+"%", |
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88 ).Scan(&result) |
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89 } |
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90 |
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91 if err != nil { |
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92 return |
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93 } |
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94 |
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95 jr.Result = strings.NewReader(result) |
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96 |
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97 return |
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98 } |