Method renderView

context/context.go:3962–3983

(filename string, optionalViewModel ...interface{})

}

func (ctx *Context) renderView(filename string, optionalViewModel ...interface{}) error {
	cfg := ctx.app.ConfigurationReadOnly()
	layout := ctx.values.GetString(cfg.GetViewLayoutContextKey())

	var bindingData interface{}
	if len(optionalViewModel) > 0 /* Don't do it: can break a lot of servers: && optionalViewModel[0] != nil */ {
		// a nil can override the existing data or model sent by `ViewData`.
		bindingData = optionalViewModel[0]
	} else {
		bindingData = ctx.values.Get(cfg.GetViewDataContextKey())
	}

	if key := cfg.GetViewEngineContextKey(); key != "" {
		if engineV := ctx.values.Get(key); engineV != nil {
			if engine, ok := engineV.(ViewEngine); ok {
				return engine.ExecuteWriter(ctx, filename, layout, bindingData)
			}
		}
	}

	return ctx.app.View(ctx, filename, layout, bindingData)
}

const (
	// ContentBinaryHeaderValue header value for binary data.