feat: SEO change history

extensions.go

@@ -7,6 +7,7 @@ import (
 
 	"git.golem15.com/golem15/sm-seo-plugin/classes"
 	"git.golem15.com/golem15/sm-seo-plugin/controllers"
+	"git.golem15.com/golem15/sm-seo-plugin/models"
 	"git.golem15.com/golem15/summercms/modules/pact"
 	"git.golem15.com/golem15/summercms/modules/signpost"
 )
@@ -36,9 +37,37 @@ func (p *Plugin) AdminActionExtensions() []pact.AdminActionExtension {
 	if form := p.typeSettingsTabs(types); form != nil {
 		out = append(out, pact.AdminActionExtension{Controller: controllers.SettingsControllerID, Form: form})
 	}
+	out = append(out, pact.AdminActionExtension{Controller: controllers.RulesControllerID, Form: p.ruleHistory()})
 	return out
 }
 
+// ruleHistory is a field-less extension on the plugin's own rules
+// controller: its Save sees the save's changes inside the save transaction
+// and records them in history (deletes are recorded by the controller).
+func (p *Plugin) ruleHistory() *pact.AdminFormExtension {
+	return &pact.AdminFormExtension{
+		Permissions: []string{controllers.PermissionManage},
+		Save: func(ctx context.Context, in pact.AdminFormSave) (pact.AdminFormSaveResult, error) {
+			svc := p.Service()
+			if svc == nil {
+				return pact.AdminFormSaveResult{}, classes.ErrNotBooted
+			}
+			before, after := classes.ChangesValues(in.Changes, in.Created)
+			url := ""
+			if r, ok := in.Record.(*models.Rule); ok && r != nil {
+				url = r.URL
+			}
+			return pact.AdminFormSaveResult{}, svc.Record(ctx, in.DB, classes.Change{
+				Kind:      models.SubjectRule,
+				SubjectID: in.ID,
+				What:      svc.Phrase("golem15.seo::lang.history.what_rule", map[string]string{"url": url}),
+				Before:    before,
+				After:     after,
+			})
+		},
+	}
+}
+
 func (p *Plugin) registry() *signpost.Registry {
 	if p == nil || p.app == nil {
 		return nil