restructured viewmodels, better serialization

providers/xmlprovider/xmlrefs.go

@@ -0,0 +1,49 @@
+package xmlprovider
+
+import "encoding/xml"
+
+type AgentRef struct {
+	XMLName xml.Name `xml:"akteur"`
+	Reference
+}
+
+type AdditionalRef struct {
+	XMLName xml.Name `xml:"beilage"`
+	Reference
+	Datum        string `xml:"datum,attr"`
+	Nr           string `xml:"nr,attr"`
+	AdditionalNo string `xml:"beilage,attr"`
+	Von          string `xml:"von,attr"`
+	Bis          string `xml:"bis,attr"`
+}
+
+type IssueRef struct {
+	XMLName xml.Name `xml:"stueck"`
+	Reference
+	Datum string `xml:"datum,attr"`
+	Nr    string `xml:"nr,attr"`
+	Von   string `xml:"von,attr"`
+	Bis   string `xml:"bis,attr"`
+}
+
+type PlaceRef struct {
+	XMLName xml.Name `xml:"ort"`
+	Reference
+}
+
+type CategoryRef struct {
+	XMLName xml.Name `xml:"kategorie"`
+	Reference
+}
+
+type WorkRef struct {
+	XMLName xml.Name `xml:"werk"`
+	Reference
+	Page string `xml:"s,attr"`
+}
+
+type PieceRef struct {
+	XMLName xml.Name `xml:"beitrag"`
+	Page    string   `xml:"s,attr"`
+	Reference
+}