Add help page

template.go

@@ -13,6 +13,7 @@ type Status struct {
 	About  bool
 	Upload bool
 	Stats  bool
+	Help   bool
 }
 
 func GetStatus(w http.ResponseWriter, r *http.Request) Status {
@@ -37,6 +38,7 @@ var templates = template.Must(template.ParseFiles(TEMPLATE_PATH+"header.html",
 	TEMPLATE_PATH+"edit.html",
 	TEMPLATE_PATH+"settings.html",
 	TEMPLATE_PATH+"stats.html",
+	TEMPLATE_PATH+"help.html",
 ))
 
 func loadTemplate(w http.ResponseWriter, tmpl string, data interface{}) {

templates/header.html

@@ -78,6 +78,9 @@
 		<form class="navbar-search pull-right" action="/search/">
 			<input type="search" class="search-query span3" name="q" {{if .Search}}value="{{.Search}}"{{else}}placeholder="Search"{{end}} />
 		</form>
+		<ul class="nav pull-right">
+			<li {{if .Help}}class="active"{{end}}><a href="/help/">Help</a></li>
+		</ul>
 	</div>
 </div>
 </div>

templates/help.html

@@ -0,0 +1,19 @@
+{{template "header.html" .S}}
+
+<h4>Advanced Search</h4>
+<p>It is possible to search for books in an specific language adding <em>lang:code</em> to the search string. See for example some searches:
+<ul>
+	<li><a href="/search/?q=lang:en hacker">lang:en hacker</a></li>
+	<li><a href="/search/?q=lang:es">lang:es</a></li>
+	<li><a href="/search/?q=isaac asimov lang:fr">isaac asimov lang:fr</a></li>
+</ul>
+</p>
+
+<p>There is other topics than <em>lang</em> that can be used:
+<ul>
+	<li><a href="/search/?q=author:doctorow">author:doctorow</a></li>
+	<li><a href="/search/?q=subject:computers title:python">subject:computers title:python</a></li>
+</ul>
+</p>
+
+{{template "footer.html"}}

trantor.go

@@ -9,17 +9,24 @@ import (
 	"strings"
 )
 
-type aboutData struct {
+type statusData struct {
 	S Status
 }
 
 func aboutHandler(w http.ResponseWriter, r *http.Request, sess *Session) {
-	var data aboutData
+	var data statusData
 	data.S = GetStatus(w, r)
 	data.S.About = true
 	loadTemplate(w, "about", data)
 }
 
+func helpHandler(w http.ResponseWriter, r *http.Request, sess *Session) {
+	var data statusData
+	data.S = GetStatus(w, r)
+	data.S.Help = true
+	loadTemplate(w, "help", data)
+}
+
 func logoutHandler(w http.ResponseWriter, r *http.Request, sess *Session) {
 	sess.LogOut()
 	sess.Notify("Log out!", "Bye bye "+sess.User, "success")
@@ -168,6 +175,7 @@ func setUpRouter() {
 	r.HandleFunc("/edit/{id:[0-9a-fA-F]+}", GatherStats(editHandler))
 	r.HandleFunc("/save/{id:[0-9a-fA-F]+}", GatherStats(saveHandler)).Methods("POST")
 	r.HandleFunc("/about/", GatherStats(aboutHandler))
+	r.HandleFunc("/help/", GatherStats(helpHandler))
 	r.HandleFunc("/download/{id:[0-9a-fA-F]+}/{epub:.*}", GatherStats(downloadHandler))
 	r.HandleFunc("/cover/{id:[0-9a-fA-F]+}/{size}/{img:.*}", coverHandler)
 	r.HandleFunc("/settings/", GatherStats(settingsHandler))