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template.go
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template.go
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package lua
import (
"html/template"
"github.com/fasthttp-contrib/sessions"
"github.com/valyala/fasthttp"
glua "github.com/yuin/gopher-lua"
)
// TemplateModule defines a html template module
type TemplateModule struct {
Tpl *template.Template
RequestContext *fasthttp.RequestCtx
Session sessions.Session
}
// NewTemplateModule returns a new template module
func NewTemplateModule(tpl *template.Template, ctx *fasthttp.RequestCtx, session sessions.Session) *Module {
module := &TemplateModule{
Tpl: tpl,
RequestContext: ctx,
Session: session,
}
return &Module{
Name: "template",
Data: module,
Funcs: map[string]glua.LGFunction{
"render": module.Render,
},
}
}
// Render renders the given template with the passed lua table
func (t *TemplateModule) Render(state *glua.LState) int {
name := state.ToString(1)
data := state.ToTable(2)
tbl := TableToMap(data)
// Add custom needed fields for the execute function
tbl["_RequestContext"] = t.RequestContext
tbl["_Session"] = t.Session
if err := t.Tpl.ExecuteTemplate(t.RequestContext, name, tbl); err != nil {
state.RaiseError("Unale to render template %s - %s", name, err)
}
return 0
}