deleting schemas - again!

src/wanijo/instance/view/show.clj

@@ -10,6 +10,32 @@
             [markdown.core :as md]
             [wanijo.visualisation.viz :as viz]))
 
+(defn links-table [heading direction instance]
+  [:section.links-in
+   [:h2 (h heading)]
+   [:table
+    [:thead
+     [:tr
+      [:th "Name"]
+      [:th "Instance"]
+      [:th "Schema"]
+      [:th "Created"]]]
+    [:tbody
+     (for [{:keys [link source schema target] :as row} (direction instance)
+           :let [name (:name link)
+                 empty (empty? name)
+                 name (if empty [:i "empty"] (h name))
+                 other (or source target)]]
+       [:tr
+        [:td name
+         (view-instance/tags-for-search row)]
+        [:td [:a {:href (path :instance-show other)}
+              (h (:name other))]]
+        [:td [:a {:href (path :instance-list
+                              {:schema-uuid (:uuid schema)})}
+              (h (:name schema))]]
+        [:td (prettify-dt (:created_at link))]])]]])
+
 (defn show [instance schemas req]
   (view/layout
     :request req
@@ -61,55 +87,9 @@
         [:h2 "Visualisation"]
         [:p (viz/single-instance instance)]])
      (when (seq (:links-out instance))
-       [:section.links-out
+       (links-table "Outgoing links" :links-out instance))
-        [:h2 "Outgoing Links"]
-        [:table
-         [:thead
-          [:tr
-           [:th "Name"]
-           [:th "Instance"]
-           [:th "Schema"]
-           [:th "Created"]]]
-         [:tbody
-          (for [{:keys [link target schema] :as row} (:links-out instance)
-                :let [name (:name link)
-                      empty (empty? name)
-                      name (if empty [:i "empty"] (h name))]]
-            [:tr
-             [:td
-              name
-              (view-instance/tags-for-search row)]
-             [:td [:a {:href (path :instance-show target)}
-                   (h (:name target))]]
-             [:td [:a {:href (path :instance-list
-                                   {:schema-uuid (:uuid schema)})}
-                   (h (:name schema))]]
-             [:td (prettify-dt (:created_at link))]])]]])
      (when (seq (:links-in instance))
-       [:section.links-in
+       (links-table "Incoming links" :links-in instance))
-        [:h2 "Incoming Links"]
-        [:table
-         [:thead
-          [:tr
-           [:th "Name"]
-           [:th "Instance"]
-           [:th "Schema"]
-           [:th "Created"]]]
-         [:tbody
-          (for [{:keys [link source schema] :as row} (:links-in instance)
-                :let [name (:name link)
-                      empty (empty? name)
-                      name (if empty [:i "empty"] (h name))]]
-            [:tr
-             [:td
-              name
-              (view-instance/tags-for-search row)]
-             [:td [:a {:href (path :instance-show source)}
-                   (h (:name source))]]
-             [:td [:a {:href (path :instance-list
-                                   {:schema-uuid (:uuid schema)})}
-                   (h (:name schema))]]
-             [:td (prettify-dt (:created_at link))]])]]])
      [:section.quick-edits
       [:h2 "Quick edits"]
       [:section.link-instance
@@ -118,7 +98,7 @@
         (for [schema schemas]
           [:li
            [:a {:href (path :instance-link-selection
-                            {:uuid        (:uuid instance)
+                            {:uuid (:uuid instance)
                              :schema-uuid (:uuid schema)})}
             (h (:name schema))]])]]
       [:section.tag-instance

src/wanijo/main.clj

@@ -6,10 +6,9 @@
 (defonce server (atom nil))
 
 (defn start-server!
-  [& {:keys [port join? handler]
+  [& {:keys [port join?]
       :or {port 3080
-           join? true
+           join? true}}]
-           handler wanijo-handler/standalone-app}}]
   (reset! server
           (run-jetty wanijo-handler/standalone-app
                      {:port port

src/wanijo/schema/db.clj

@@ -93,10 +93,10 @@
                           {:user_uuid user-uuid})))
 
 (neo4j/defquery delete
-  "MATCH (s:schema)
+  "MATCH (s:schema {uuid:{uuid}})
-   WHERE s.uuid = {uuid}
+   WITH s
-   OPTIONAL MATCH (s)--(a:attribute)
+   OPTIONAL MATCH (s)--(a:attribute)-[cb:created_by]-(:user)
-   DELETE a
+   DELETE cb, a
    WITH s
    MATCH (s)-[c]-()
    DELETE c, s")