links in dot graphs

src/wanijo/visualisation/viz.clj

@@ -1,14 +1,25 @@
 (ns wanijo.visualisation.viz
   (:require [dorothy
              [core :as dot]
-             [jvm :as doro-jvm]]))
+             [jvm :as doro-jvm]]
+            [wanijo.framework.routing :refer [path]]))
+
+(defn node->label
+  ([node]
+   (:name node))
+  ([node1 node2]
+   (str (:name node1)
+        "\n"
+        (:name node2))))
 
 (defn single-instance [instance]
   (let [out-nodes (map #(vector (-> % :target :uuid)
-                                {:label (-> % :target :name)})
+                                {:label (node->label (:target %))
+                                 :href (path :instance-show (:target %))})
                        (:links-out instance))
         in-nodes (map #(vector (-> % :source :uuid)
-                               {:label (-> % :source :name)})
+                               {:label (node->label (:source %))
+                                :href (path :instance-show (:source %))})
                       (:links-in instance))
         relationships-out (map (fn [{:keys [link target schema]}]
                                  [(:uuid instance) :> (:uuid target)
@@ -23,7 +34,7 @@
                   "LR"
                   "TD")]
     (-> [{:rankdir rankdir}
-         [(:uuid instance) {:label (:name instance)
+         [(:uuid instance) {:label (node->label instance)
                             :shape "cylinder"}]]
         (into out-nodes)
         (into in-nodes)
@@ -34,27 +45,20 @@
         (doro-jvm/render {:format :svg}))))
 
 (defn all-instances [instances]
-  (let [labelfn #(str (:name %1)
-                      "\n"
-                      (:name %2))
-        sources (map #(vector (-> % :source :uuid)
-                              {:label (labelfn (:source %)
-                                               (:schema %))})
+  (let [sources (map #(vector (-> % :source :uuid)
+                              {:label (node->label (:source %)
+                                                   (:schema %))
+                               :href (path :instance-show (:source %))})
                      instances)
         linked (filter :link instances)
         links (map #(vector (-> % :source :uuid)
                             :>
                             (-> % :target :uuid)
                             {:label (-> % :link :name)})
-                   linked)
-        targets (map #(vector (-> % :target :uuid)
-                              {:label (labelfn (:target %)
-                                               (:target_schema %))})
-                     linked)]
+                   linked)]
     (-> [{:forcelabels "true"
           :rankdir "LR"}]
         (into sources)
-        (into targets)
         (into links)
         dot/digraph
         dot/dot