// Render renders a template using the context's writer
func (t *Template) Render(ctx context.IContext, name string, binding interface{}, layout ...string) (err error) {
if t == nil { // No engine was given but .Render was called
ctx.HTML(403, "<b> Iris </b> <br/> Templates are disabled via config.NoEngine, check your iris' configuration please.")
return fmt.Errorf("[IRIS TEMPLATES] Templates are disabled via config.NoEngine, check your iris' configuration please.\n")
}
// build templates again on each render if IsDevelopment.
if t.IsDevelopment {
if err = t.Engine.BuildTemplates(); err != nil {
return
}
}
_layout := t.getLayout(ctx, layout)
ctx.GetRequestCtx().Response.Header.Set("Content-Type", t.ContentType)
var out io.Writer
if t.Gzip {
ctx.GetRequestCtx().Response.Header.Add("Content-Encoding", "gzip")
gzipWriter := t.gzipWriterPool.Get().(*gzip.Writer)
gzipWriter.Reset(ctx.GetRequestCtx().Response.BodyWriter())
defer gzipWriter.Close()
defer t.gzipWriterPool.Put(gzipWriter)
out = gzipWriter
} else {
out = ctx.GetRequestCtx().Response.BodyWriter()
}
err = t.Engine.ExecuteWriter(out, name, binding, _layout)
return
}
func (t *Template) getLayout(ctx context.IContext, passedLayouts []string) string {
_layout := ""
if len(passedLayouts) > 0 {
_layout = passedLayouts[0]
} else if ctx != nil {
if layoutFromCtx := ctx.GetString(config.TemplateLayoutContextKey); layoutFromCtx != "" {
_layout = layoutFromCtx
}
}
if _layout == "" && _layout != config.NoLayout {
if t.Layout != config.NoLayout { // the config's Layout is disabled if "" , config.NoLayout should be passed only on ctx.Render but for any case check if user set it as config.NoLayout also
_layout = t.Layout
}
}
return _layout
}