numerus/pkg/template.go

85 lines
2.4 KiB
Go

package pkg
import (
"fmt"
"golang.org/x/text/message"
"golang.org/x/text/number"
"html/template"
"io"
"math"
"net/http"
"strconv"
)
const overrideMethodName = "_method"
func templateFile(name string) string {
return "web/template/" + name
}
func mustRenderTemplate(wr io.Writer, r *http.Request, layout string, filename string, data interface{}) {
locale := getLocale(r)
company := getCompany(r)
user := getUser(r)
t := template.New(filename)
t.Funcs(template.FuncMap{
"gettext": locale.Get,
"pgettext": locale.GetC,
"currentLocale": func() string {
return locale.Language.String()
},
"companyURI": func(uri string) string {
return companyURI(company, uri)
},
"formatPrice": func(price string) string {
p := message.NewPrinter(locale.Language)
f, err := strconv.ParseFloat(price, 64)
if err != nil {
f = math.NaN()
}
return p.Sprintf("%.*f", company.DecimalDigits, number.Decimal(f))
},
"csrfToken": func() template.HTML {
return template.HTML(fmt.Sprintf(`<input type="hidden" name="%s" value="%s">`, csrfTokenField, user.CsrfToken))
},
"addInputAttr": func(attr string, field *InputField) *InputField {
field.Attributes = append(field.Attributes, template.HTMLAttr(attr))
return field
},
"addSelectAttr": func(attr string, field *SelectField) *SelectField {
field.Attributes = append(field.Attributes, template.HTMLAttr(attr))
return field
},
"deleteMethod": func() template.HTML {
return overrideMethodField(http.MethodDelete)
},
"putMethod": func() template.HTML {
return overrideMethodField(http.MethodPut)
},
})
if _, err := t.ParseFiles(templateFile(filename), templateFile(layout), templateFile("form.gohtml")); err != nil {
panic(err)
}
if err := t.ExecuteTemplate(wr, layout, data); err != nil {
panic(err)
}
}
func companyURI(company *Company, uri string) string {
if company == nil {
return uri
}
return "/company/" + company.Slug + uri
}
func overrideMethodField(method string) template.HTML {
return template.HTML(fmt.Sprintf(`<input type="hidden" name="%s" value="%s">`, overrideMethodName, method))
}
func mustRenderAppTemplate(w io.Writer, r *http.Request, filename string, data interface{}) {
mustRenderTemplate(w, r, "app.gohtml", filename, data)
}
func mustRenderWebTemplate(w io.Writer, r *http.Request, filename string, data interface{}) {
mustRenderTemplate(w, r, "web.gohtml", filename, data)
}