blog/internal/controllers/events/edit.go

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package events
import (
"html/template"
"net/http"
"strconv"
"github.com/kirsle/blog/internal/markdown"
"github.com/kirsle/blog/internal/render"
"github.com/kirsle/blog/internal/responses"
"github.com/kirsle/blog/models/events"
)
func editHandler(w http.ResponseWriter, r *http.Request) {
v := map[string]interface{}{
"preview": "",
}
var ev *events.Event
// Are we editing an existing event?
if idStr := r.FormValue("id"); idStr != "" {
id, err := strconv.Atoi(idStr)
if err == nil {
ev, err = events.Load(id)
if err != nil {
responses.Flash(w, r, "That event ID was not found")
ev = events.New()
}
}
} else {
ev = events.New()
}
if r.Method == http.MethodPost {
// Parse from form values.
ev.ParseForm(r)
// Previewing, or submitting?
switch r.FormValue("submit") {
case "preview":
v["preview"] = template.HTML(markdown.RenderTrustedMarkdown(ev.Description))
case "save":
if err := ev.Validate(); err != nil {
responses.Flash(w, r, "Error: %s", err.Error())
} else {
err = ev.Save()
if err != nil {
responses.Flash(w, r, "Error: %s", err.Error())
} else {
responses.Flash(w, r, "Event created!")
responses.Redirect(w, "/e/"+ev.Fragment)
}
}
}
}
v["event"] = ev
render.Template(w, r, "events/edit", v)
}