Trap for empty text diagram before generating

sauls8t · sauls8t · commit 05da8894b9f9 · 2018-04-26T15:14:41.000+01:00
diff --git a/domain/section/plantuml/plantuml.go b/domain/section/plantuml/plantuml.go
@@ -74,8 +74,13 @@ func (p *Provider) Command(ctx *provider.Context, w http.ResponseWriter, r *http
 			return
 		}
 
-		diagram := p.generateDiagram(ctx, payload.Data)
+		// Generate diagram if we have data.
+		var diagram string
+		if len(payload.Data) > 0 {
+			diagram = p.generateDiagram(ctx, payload.Data)
+		}
 		payload.Data = diagram
+
 		provider.WriteJSON(w, payload)
 		return
 	}

Original file line number	Diff line number	Diff line change
`@@ -74,8 +74,13 @@ func (p Provider) Command(ctx provider.Context, w http.ResponseWriter, r *http`
`74`	`74`	`return`
`75`	`75`	`}`
`76`	`76`
`77`		`- diagram := p.generateDiagram(ctx, payload.Data)`
	`77`	`+ // Generate diagram if we have data.`
	`78`	`+ var diagram string`
	`79`	`+ if len(payload.Data) > 0 {`
	`80`	`+ diagram = p.generateDiagram(ctx, payload.Data)`
	`81`	`+ }`
`78`	`82`	`payload.Data = diagram`
	`83`	`+`
`79`	`84`	`provider.WriteJSON(w, payload)`
`80`	`85`	`return`
`81`	`86`	`}`