Add work with letter atachment logic.

Gopkg.lock

@@ -178,7 +178,7 @@
   branch = "master"
   name = "gitlab.qarea.org/tgms/authorizationlib"
   packages = ["."]
-  revision = "a3724d3a281fbdad53f188809dadeae0b752ef7c"
+  revision = "966127ad546a22239f07e143933ac17ea57c490f"
 
 [[projects]]
   branch = "master"
@@ -190,7 +190,7 @@
   branch = "master"
   name = "gitlab.qarea.org/tgms/eventlib"
   packages = ["."]
-  revision = "b039e648b3aef06b67053e643d930879a34f8285"
+  revision = "53ef576641aa09758cafe3d2900136ae10cfd95a"
 
 [[projects]]
   branch = "master"

mailer/mailer.go

@@ -12,6 +12,7 @@ import (
 	"gitlab.qarea.org/tgms/eventlib"
 
 	"gitlab.qarea.org/tgms/mailingms/cfg"
+	"io"
 )
 
 var log = narada.NewLog("mailer: ")
@@ -35,6 +36,13 @@ func NewLetter(request eventlib.SendEmailRequest) (*gomail.Message, error) {
 	body := embedder(templ, templatePath, message)
 	message.SetBody("text/html", body)
 
+	if request.AttachmentName != ""{
+		message.Attach(request.AttachmentName, gomail.SetCopyFunc(func(w io.Writer) error {
+			_, err := w.Write(request.Attachment)
+			return err
+		}))
+	}
+
 	return message, nil
 }
 

mailer/mailer_handler.go

@@ -58,6 +58,8 @@ var invoiceSentHandler eventlib.OnInvoiceSent = func(event eventlib.Event, invoi
 		Subj:"Invoice created",
 		TemplateName: "invoice_sent",
 		Params: invoiceSentRequest.Params,
+		Attachment:invoiceSentRequest.Attachment,
+		AttachmentName: "invoice.pdf",
 	}
 	log.DEBUG(" :: %+v",request)