sklad: cleanup, add comment

Child containers now show a linear list of subcontainers.

sklad/container.tmpl

@@ -1,22 +1,23 @@
-{{ define "Title" }}{{ or .Id "Obaly" }}{{ end }}
+{{ define "Title" }}{{/*
+*/}}{{ if .Container }}{{ .Container.Id }}{{ else }}Obaly{{ end }}{{ end }}
 {{ define "Content" }}
 
-{{ if .Id }}
+{{ if .Container }}
 
 <section>
 <header>
-	<h2>{{ .Id }}</h2>
-	<form method=post action="/label?id={{ .Id }}">
+	<h2>{{ .Container.Id }}</h2>
+	<form method=post action="/label?id={{ .Container.Id }}">
 	<input type=submit value="Vytisknout štítek">
 	</form>
-	<form method=post action="/?id={{ .Id }}&amp;remove">
+	<form method=post action="/?id={{ .Container.Id }}&amp;remove">
 	<input type=submit value="Odstranit">
 	</form>
 </header>
 
-<form method=post action="/?id={{ .Id }}">
+<form method=post action="/?id={{ .Container.Id }}">
 <textarea name=description rows=5>
-{{ .Description }}
+{{ .Container.Description }}
 </textarea>
 <footer>
 	<div>
@@ -24,14 +25,14 @@
 		<select name=series id=series>
 {{ range $prefix, $desc := .AllSeries }}
 			<option value="{{ $prefix }}"
-				{{ if eq $prefix $.Series }}selected{{ end }}
+				{{ if eq $prefix $.Container.Series }}selected{{ end }}
 				>{{ $prefix }} &mdash; {{ $desc }}</option>
 {{ end }}
 		</select>
 	</div>
 	<div>
 		<label for=parent>Nadobal:</label>
-		<input type=text name=parent id=parent value="{{ .Parent }}">
+		<input type=text name=parent id=parent value="{{ .Container.Parent }}">
 	</div>
 	<input type=submit value="Uložit">
 </footer>
@@ -54,7 +55,6 @@
 		<select name=series id=series>
 {{ range $prefix, $desc := .AllSeries }}
 			<option value="{{ $prefix }}"
-				{{ if eq $prefix $.Series }}selected{{ end }}
 				>{{ $prefix }} &mdash; {{ $desc }}</option>
 {{ end }}
 		</select>
@@ -74,7 +74,7 @@
 {{ range .Children }}
 <section>
 <header>
-	<h3><a href="/container?id={{ .Id }}">{{ .Id }}</a></h3>
+	<h3><a href="/?id={{ .Id }}">{{ .Id }}</a></h3>
 	<form method=post action="/label?id={{ .Id }}">
 	<input type=submit value="Vytisknout štítek">
 	</form>
@@ -85,6 +85,12 @@
 {{ if .Description }}
 <p>{{ .Description }}
 {{ end }}
+{{ if .Children }}
+<p>
+{{ range .Children }}
+<a href="/?id={{ .Id }}">{{ .Id }}</a>
+{{ end }}
+{{ end }}
 </section>
 {{ else }}
 <p>Obal je prázdný.

sklad/db.go

@@ -13,6 +13,8 @@ type Series struct {
 	Description string // what kind of containers this is for
 }
 
+type ContainerId string
+
 type Container struct {
 	Series      string      // PK: what series does this belong to
 	Number      uint        // PK: order within the series
@@ -20,12 +22,15 @@ type Container struct {
 	Description string      // description and/or contents of this container
 }
 
-type ContainerId string
-
 func (c *Container) Id() ContainerId {
 	return ContainerId(fmt.Sprintf("%s%s%d", db.Prefix, c.Series, c.Number))
 }
 
+func (c *Container) Children() []*Container {
+	// TODO: Sort this by Id, or maybe even return a map[string]*Container.
+	return indexChildren[c.Id()]
+}
+
 type Database struct {
 	Password   string       // password for web users
 	Prefix     string       // prefix for all container IDs

sklad/main.go

@@ -92,34 +92,23 @@ func handleContainer(w http.ResponseWriter, r *http.Request) {
 		allSeries[s.Prefix] = s.Description
 	}
 
+	var container *Container
 	children := []*Container{}
-	id := ContainerId(r.FormValue("id"))
-	description := ""
-	series := ""
-	parent := ContainerId("")
 
-	if id == "" {
-		children = indexChildren[id]
-	} else if container, ok := indexContainer[id]; ok {
-		children = indexChildren[id]
-		description = container.Description
-		series = container.Series
-		parent = container.Parent
+	if id := ContainerId(r.FormValue("id")); id == "" {
+		children = indexChildren[""]
+	} else if c, ok := indexContainer[id]; ok {
+		children = c.Children()
+		container = c
 	}
 
 	params := struct {
-		Id          ContainerId
-		Description string
+		Container *Container
 		Children  []*Container
-		Series      string
-		Parent      ContainerId
 		AllSeries map[string]string
 	}{
-		Id:          id,
-		Description: description,
+		Container: container,
 		Children:  children,
-		Series:      series,
-		Parent:      parent,
 		AllSeries: allSeries,
 	}
 
@@ -171,6 +160,7 @@ func handleSearch(w http.ResponseWriter, r *http.Request) {
 	_ = query
 
 	// TODO: Query the database for exact matches and fulltext.
+	//  - Will want to show the full path from the root "" container.
 
 	params := struct{}{}