58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
// Template rendering
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//
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// Abstracts the rendering of static HTML templates.
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// Render(...) handles rendering the provided template with the
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// default partial templates (header, footer, general base...), handles
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// getting the paths to those template files and feeding the data (including
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// some internally-generated context) when hydrating the template.
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package main
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import (
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"fmt"
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"io"
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"path/filepath"
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"text/template"
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"time"
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)
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type RenderMeta struct {
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RenderStart time.Time
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Location string
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}
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type RenderContext struct {
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Data interface{}
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Meta RenderMeta
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}
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func getRenderDuration(start time.Time) time.Duration {
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return time.Now().Sub(start)
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}
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func Render(w io.Writer, templateName string, data interface{}) error {
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asTemplatePath := func(templateName string) string {
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return filepath.Join("templates", fmt.Sprintf("%s.html.tmpl", templateName))
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}
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templatePartials := []string{
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asTemplatePath(templateName),
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asTemplatePath("base"),
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asTemplatePath("footer"),
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}
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start := time.Now()
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tmpl := template.New(templateName).Funcs(template.FuncMap{
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"getRenderDuration": getRenderDuration,
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})
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tmpl, err := tmpl.ParseFiles(templatePartials...)
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if err != nil {
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return err
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}
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renderContext := RenderContext{Data: data, Meta: RenderMeta{RenderStart: start, Location: "America/New_York"}}
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return tmpl.ExecuteTemplate(w, "base", renderContext)
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}
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