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annotate pkg/models/pubservices.go @ 442:fc37e7072022

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Moved some models used in controllers to to model package because they may be needed elsewhere (e.g. GeoServer config).
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 21 Aug 2018 16:57:55 +0200
parents pkg/controllers/pubservices.go@76a76691a298
children c315885825e5
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rev   line source
442
fc37e7072022 Moved some models used in controllers to to model package because they may be needed elsewhere (e.g. GeoServer config).
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1 package models
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2
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3 import (
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4 "database/sql"
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5 "log"
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6 "sync"
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7
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8 "gemma.intevation.de/gemma/pkg/auth"
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9 )
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10
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11 type PubEntry struct {
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12 style sql.NullString
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13 asWMS bool
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14 asWFS bool
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15 }
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17 type PubServices struct {
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18 entries map[string]PubEntry
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19 mu sync.Mutex
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20 }
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21
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22 const selectPublishedServices = `SELECT name, style, as_wms, as_wfs
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23 FROM sys_admin.published_services`
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24
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25 var PublishedServices = &PubServices{}
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27 func (ps *PubServices) Find(name string) (string, bool) {
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28 ps.mu.Lock()
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29 defer ps.mu.Unlock()
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30
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31 if ps.entries == nil {
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32 ps.entries = make(map[string]PubEntry)
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33 if err := ps.load(); err != nil {
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34 log.Printf("error: %v\n", err)
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35 return "", false
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36 }
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37 }
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38 _, found := ps.entries[name]
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39 if !found {
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40 name = ""
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41 }
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42 return name, found
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43 }
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44
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45 func (ps *PubServices) load() error {
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46 return auth.RunAs("sys_admin", func(db *sql.DB) error {
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47 rows, err := db.Query(selectPublishedServices)
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48 if err != nil {
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49 return err
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50 }
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51 defer rows.Close()
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52 for rows.Next() {
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53 var entry PubEntry
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54 var key string
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55 if err := rows.Scan(
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56 &key, &entry.style,
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57 &entry.asWFS, &entry.asWFS,
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58 ); err != nil {
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59 return err
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60 }
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61 ps.entries[key] = entry
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62 }
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63 return rows.Err()
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64 })
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65 return nil
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66 }
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68 func (ps *PubServices) Invalidate() {
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69 ps.mu.Lock()
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70 ps.entries = nil
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71 ps.mu.Unlock()
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72 }