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website/templates.go

53 lines
1.3 KiB
Go

package main
import (
"io"
"strings"
"text/template"
"github.com/phc-dm/phc-server/config"
"github.com/phc-dm/phc-server/util"
)
// TemplateRenderer holds cached templates for rendering
type TemplateRenderer struct {
baseFile string
baseTemplate *template.Template
templateMap map[string]*template.Template
}
// NewTemplateRenderer constructs a template renderer with a base file
func NewTemplateRenderer(baseFile string) *TemplateRenderer {
return &TemplateRenderer{
baseFile: baseFile,
baseTemplate: template.Must(template.ParseFiles("./views/" + baseFile)),
templateMap: make(map[string]*template.Template),
}
}
// Render the template
func (t *TemplateRenderer) Render(w io.Writer, name string, data util.H) error {
tmpl := t.templateMap[name]
if config.Mode == "development" || tmpl == nil {
if config.Mode == "development" {
tmpl = template.Must(template.ParseFiles("./views/" + t.baseFile))
} else {
tmpl = template.Must(t.baseTemplate.Clone())
}
tmpl.ParseFiles("./views/" + name)
t.templateMap[name] = tmpl
}
newData := util.H{}
newData.Apply(data)
newData["Page"] = util.H{
// Used to inject a page specific class on <body>
"Name": strings.TrimSuffix(name, ".html"),
}
newData["Config"] = config.Object()
return tmpl.ExecuteTemplate(w, "base", newData)
}