creating instances

project.clj

@@ -26,7 +26,8 @@
                              [lein-ancient "0.6.15"]
                              [jonase/eastwood "0.3.1"]
                              [lein-bikeshed "0.5.1"]
-                             [lein-cloverage "1.0.13"]]}
+                             [lein-cloverage "1.0.13"]
+                             [cider/cider-nrepl "LATEST"]]}
              :uberjar {:aot :all}}
 
   :ring {:handler wanijo.handler/app}

src/wanijo/attribute/domain.clj

@@ -12,7 +12,7 @@
   (spec/and string? types))
 
 (spec/def ::required
-  #(some (partial = %) ["on" nil 0 1 "0" "1"]))
+  #{"on" nil 0 1 "0" "1"})
 
 (spec/def ::created-at
   (spec/and string? ::neo4j/date-str))
@@ -47,13 +47,11 @@
 (defn create-new! [attr schema-uuid user-uuid]
   (neo4j/exec-query!
    create-new
-   (-> attr
-       (assoc
+   (assoc attr
           :user_uuid user-uuid
           :schema_uuid schema-uuid
           :attribute_uuid (neo4j/uuid)
-        :created_at (neo4j/now-str))
-       (update :required #(if (some? %) 1 0)))))
+          :created_at (neo4j/now-str))))
 
 (neo4j/defquery edit
   "MATCH (a:attribute)
@@ -77,3 +75,14 @@
   (neo4j/exec-query!
    delete-by-uuid
    {:uuid uuid}))
+
+(neo4j/defquery required
+  "MATCH (a:attribute)-[:of]->(s:schema {uuid:{schema_uuid}})
+   WHERE a.required = 1
+   RETURN a
+   ORDER BY a.name")
+
+(defn required! [schema-uuid]
+  (map :a
+       (neo4j/exec-query! required
+                          {:schema_uuid schema-uuid})))

src/wanijo/attribute/routes.clj

@@ -12,7 +12,8 @@
   (let [schema-uuid (get-in req [:params :schema])]
     (if (form/valid? view-schema/attr-form req)
       (do
-        (domain/create-new! (:params req)
+        (domain/create-new! (merge {:required 0}
+                                   (:params req))
                             schema-uuid
                             (get-in req [:session :uuid]))
         (resp/redirect (path :schema-show {:uuid schema-uuid})))

src/wanijo/framework/view.clj

@@ -59,14 +59,12 @@
        [:nav
         (when authed?
           [:section.schemas
-           [:h2 [:span.__icon "▤"] "Created Schemas"]
+           [:h2 [:span.__icon "▤"] "Schemas"]
            [:ul
-            (for [schema (:created-schemas session)]
-              [:li (:name schema)])]
-           [:h2 [:span.__icon "▤"] "Other Schemas"]
-           [:ul
-            (for [schema (:other-schemas session)]
-              [:li (:name schema)])]])]
+            (for [schema (:schemas session)]
+              [:li [:a {:href (path :instance-list
+                                    {:schema-uuid (:uuid schema)})}
+                    (:name schema)]])]])]
        (into [:main
               (for [msg (:flash request)]
                 (flash-error msg))]

src/wanijo/handler.clj

@@ -11,6 +11,7 @@
             [wanijo.schema.middleware :as schema-middleware]
             [wanijo.user.routes :as user-routes]
             [wanijo.attribute.routes :as attr-routes]
+            [wanijo.instance.routes :as instance-routes]
             [wanijo.framework.auth :as auth]
             [wanijo.framework.devmode :as devmode]
             [wanijo.framework.routing :refer [path]]))
@@ -27,7 +28,8 @@
    (routes home-routes/routes
            schema-routes/routes
            user-routes/routes
-           attr-routes/routes))
+           attr-routes/routes
+           instance-routes/routes))
   (route/not-found "Not Found"))
 
 (def app

src/wanijo/instance/domain.clj

@@ -0,0 +1,56 @@
+(ns wanijo.instance.domain
+  (:require [clojure.spec.alpha :as spec]
+            [wanijo.framework.neo4j :as neo4j]
+            [clojure.pprint :as pprint]))
+
+(spec/def ::created-at ::neo4j/date-str)
+(spec/def ::updated-at ::neo4j/date-str)
+(spec/def ::name (spec/and (complement empty?) string?))
+
+(neo4j/defquery
+  findy-by-schema
+  "MATCH (i:instance)-->(s:schema)
+   WHERE s.uuid = {uuid}
+   RETURN i
+   ORDER BY i.updated_at DESC")
+
+(defn find-by-schema! [schema-uuid]
+  (->>
+   (neo4j/exec-query!
+    findy-by-schema
+    {:uuid schema-uuid})
+   (map :i)))
+
+(neo4j/defquery create-instance
+  "MATCH (s:schema {uuid:{schema_uuid}})
+   CREATE (i:instance {uuid:{uuid}})-[:of]->(s)
+      SET i.name = {name},
+          i.created_at = {created_at},
+          i.updated_at = {created_at}")
+
+(neo4j/defquery create-property
+  "MATCH (i:instance {uuid:{uuid}}),
+         (a:attribute {uuid:{attr_uuid}})
+   CREATE (p:property {uuid:{prop_uuid}})-[:of]->(i),
+          (p)-[:of]->(a)
+     SET p.value = {value},
+         p.created_at = {created_at}")
+
+(defn create! [schema-uuid instance]
+  (let [instance-uuid (neo4j/uuid)
+        now (neo4j/now-str)
+        instance-tuple [create-instance
+                        {:schema_uuid schema-uuid
+                         :name (:name instance)
+                         :uuid instance-uuid
+                         :created_at now}]
+        prop-tuples (for [{:keys [attribute value]} (:properties instance)]
+                      [create-property
+                       {:uuid instance-uuid
+                        :attr_uuid (:uuid attribute)
+                        :prop_uuid (neo4j/uuid)
+                        :value value
+                        :created_at now}])]
+    (apply neo4j/exec-queries!
+           (concat [instance-tuple]
+                   prop-tuples))))

src/wanijo/instance/routes.clj

@@ -0,0 +1,66 @@
+(ns wanijo.instance.routes
+  (:require [compojure.core :refer [defroutes GET POST DELETE]]
+            [ring.util.response :as resp]
+            [formulare.core :as form]
+            [wanijo.instance.view :as view]
+            [wanijo.instance.domain :as domain]
+            [wanijo.framework.routing :refer [register! path]]
+            [wanijo.schema.domain :as domain-schema]
+            [wanijo.attribute.domain :as domain-attr]))
+
+(defn attr-type->widget [type]
+  (case type
+    ("markdown" "text") :textarea
+    :input))
+
+(defn attr->field-id [attr]
+  (keyword (str "attr-" (:name attr))))
+
+(defn attr->field [attr]
+  {:label (:name attr)
+   :required true
+   :widget (attr-type->widget (:type attr))})
+
+(defn new-form [schema-uuid]
+  (update view/new-form
+          :fields
+          (fn [fields]
+            (reduce (fn [fields attr]
+                      (assoc fields
+                             (attr->field-id attr)
+                             (attr->field attr)))
+                    fields
+                    (domain-attr/required! schema-uuid)))))
+
+(defn list! [schema-uuid req]
+  (view/list! (domain-schema/find-by-uuid! schema-uuid)
+              (domain/find-by-schema! schema-uuid)
+              (new-form schema-uuid)
+              req))
+
+(defn form-data->instance [form-data required-attrs]
+  {:name (:name form-data)
+   :properties (map (fn [ra]
+                      {:attribute ra
+                       :value ((attr->field-id ra) form-data)})
+                    required-attrs)})
+
+(defn new! [req]
+  (let [schema-uuid (get-in req [:params :schema-uuid])
+        form-def (new-form schema-uuid)]
+    (if (form/valid? form-def req)
+      (let [instance (form-data->instance
+                      (form/form-data form-def req)
+                      (domain-attr/required! schema-uuid))]
+        (domain/create! schema-uuid
+                        instance)
+        (resp/redirect (path :instance-list
+                             (:params req))))
+      (list! schema-uuid req))))
+
+(defroutes routes
+  (GET (register! :instance-list "/instance/list/:schema-uuid")
+       [schema-uuid :as req]
+       (list! schema-uuid req))
+  (POST (register! :instance-new "/instance/new") []
+        new!))

src/wanijo/instance/view.clj

@@ -0,0 +1,39 @@
+(ns wanijo.instance.view
+  (:require [hiccup.form :as hform]
+            [ring.util.anti-forgery :refer [anti-forgery-field]]
+            [formulare.core :as form]
+            [wanijo.instance.domain :as domain]
+            [wanijo.framework.view :as view]
+            [wanijo.framework.routing :refer [path]]
+            [wanijo.framework.time :refer [prettify-dt]]))
+
+(def new-form
+  {:fields {:name {:label "Name"
+                   :required true
+                   :spec ::domain/name}}})
+
+(defn list! [schema instances new-form req]
+  (view/layout!
+   :request req
+   :content
+   [[:h1 "All Instances of schema "
+     [:span.schema-title__name (:name schema)]]
+    [:table
+     [:thead
+      [:tr
+       [:th "Name"]
+       [:th "Updated"]
+       [:th "Created"]]]
+     [:tbody
+      (for [instance instances]
+        [:tr
+         [:td
+          [:a (:name instance)]]
+         [:td (prettify-dt (:updated_at instance))]
+         [:td (prettify-dt (:created_at instance))]])]]
+    [:h1 "New Instance"]
+    (hform/form-to [:post (path :instance-new)]
+                   (form/render-widgets new-form {} req)
+                   (hform/hidden-field "schema-uuid"
+                                       (:uuid schema))
+                   (hform/submit-button "Create!"))]))

src/wanijo/schema/domain.clj

@@ -96,15 +96,35 @@
                 -[:permission {type:{type}}]-
                 (s)) AS is_public")
 
-(defn has-user-write-permissions? [schema-uuid user-uuid]
+(defn has-user-permission? [type schema-uuid user-uuid]
   (let [permissions (first (neo4j/exec-query! schema-permissions
                                               {:schema_uuid schema-uuid
                                                :user_uuid user-uuid
-                                               :type "write"}))
+                                               :type type}))
         public? (neo4j/bool (:is_public permissions))
         user? (neo4j/bool (:user_has_permission permissions))]
     (or public? user?)))
 
+(defn has-user-write-permissions? [schema-uuid user-uuid]
+  (has-user-permission? "write" schema-uuid user-uuid))
+
+(defn has-user-read-permissions? [schema-uuid user-uuid]
+  (has-user-permission? "read" schema-uuid user-uuid))
+
+(neo4j/defquery
+  accessible-schemas
+  "MATCH (s:schema),
+         (u:user {uuid:{user_uuid}})
+   WHERE EXISTS((u)-[:permission {type:'read'}]->(s))
+      OR NOT EXISTS((:user)-[:permission {type:'read'}]->(s))
+   RETURN s
+   ORDER BY s.name")
+
+(defn accessible-schemas! [user-uuid]
+  (map :s
+       (neo4j/exec-query! accessible-schemas
+                          {:user_uuid user-uuid})))
+
 (neo4j/defquery
   delete
   "MATCH (s:schema)

src/wanijo/schema/middleware.clj

@@ -5,12 +5,7 @@
 (defn wrap-user-schemas [handler]
   (fn [req]
     (if-let [uuid (get-in req [:session :uuid])]
-      (let [created (domain/all-created-by! uuid)
-            created-uids (map :uuid created)
-            others (filter (fn [other]
-                             (not (in? created-uids (:uuid other))))
-                           (domain/all!))]
-        (handler (-> req
-                     (assoc-in [:session :created-schemas] created)
-                     (assoc-in [:session :other-schemas] others))))
+      (handler (assoc-in req
+                         [:session :schemas]
+                         (domain/accessible-schemas! uuid)))
       (handler req))))

src/wanijo/schema/view.clj

@@ -22,12 +22,14 @@
             :type {:label "Type"
                    :required true
                    :spec ::attr-domain/type
+                   :widget :select
                    :options (map #(vector (capitalize %) %)
                                  attr-domain/types)}
             :required {:label "Required"
                        :required false
                        :spec ::attr-domain/required
-                       :widget :checkbox}
+                       :widget :checkbox
+                       :from-req #(if (some? %) 1 0)}
             :uuid {:widget :hidden}}})
 
 (def assign-form