mirror of https://github.com/jlelse/GoBlog
67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
package main
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import (
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"encoding/json"
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"net/http"
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)
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const defaultGeoMapPath = "/map"
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func (a *goBlog) serveGeoMap(w http.ResponseWriter, r *http.Request) {
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blog := r.Context().Value(blogKey).(string)
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bc := a.cfg.Blogs[blog]
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allPostsWithLocation, err := a.getPosts(&postsRequestConfig{
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blog: blog,
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status: statusPublished,
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parameter: a.cfg.Micropub.LocationParam,
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withOnlyParameters: []string{a.cfg.Micropub.LocationParam},
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})
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if err != nil {
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a.serveError(w, r, err.Error(), http.StatusInternalServerError)
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return
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}
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if len(allPostsWithLocation) == 0 {
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a.render(w, r, templateGeoMap, &renderData{
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BlogString: blog,
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Data: map[string]interface{}{
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"nolocations": true,
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},
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})
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return
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}
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type templateLocation struct {
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Lat float64
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Lon float64
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Post string
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}
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var locations []*templateLocation
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for _, p := range allPostsWithLocation {
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if g := a.geoURI(p); g != nil {
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locations = append(locations, &templateLocation{
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Lat: g.Latitude,
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Lon: g.Longitude,
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Post: p.Path,
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})
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}
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}
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jb, err := json.Marshal(locations)
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if err != nil {
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a.serveError(w, r, err.Error(), http.StatusInternalServerError)
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return
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}
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mapPath := bc.getRelativePath(defaultIfEmpty(bc.Map.Path, defaultGeoMapPath))
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a.render(w, r, templateGeoMap, &renderData{
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BlogString: blog,
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Canonical: a.getFullAddress(mapPath),
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Data: map[string]interface{}{
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"locations": string(jb),
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},
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})
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}
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