diff --git a/project.clj b/project.clj
index 9788f3c..2478067 100644
--- a/project.clj
+++ b/project.clj
@@ -10,6 +10,7 @@
                  [enlive "1.1.5"]
                  [image-resizer "0.1.6"]
                  [clj-http "1.0.0"]
+                 [korma "0.3.3"]
                  [me.raynes/fs "1.4.6"]]
   :main luduverse.core
   :plugins [[lein-ring "0.8.10"]]
diff --git a/src/luduverse/db-models/competition.clj b/src/luduverse/db-models/competition.clj
new file mode 100644
index 0000000..d9ba17e
--- /dev/null
+++ b/src/luduverse/db-models/competition.clj
@@ -0,0 +1,18 @@
+(ns luduverse.db-models.competition
+  (:require [korma.core :refer :all]
+            [luduverse.db :refer :all]))
+
+(defn latest []
+  (first (select competitions
+          (order :number :DESC)
+          (limit 1))))
+
+(defn exists? [number]
+  (not (empty? (select competitions
+                       (fields :id)
+                       (where {:number number})))))
+
+(defn create! [number theme]
+  (if-not (exists? number)
+    (insert competitions (values {:number number
+                                  :theme theme}))))
diff --git a/src/luduverse/db-models/entry.clj b/src/luduverse/db-models/entry.clj
new file mode 100644
index 0000000..ccd1f02
--- /dev/null
+++ b/src/luduverse/db-models/entry.clj
@@ -0,0 +1,32 @@
+(ns luduverse.db-models.entry
+  (:require [korma.core :refer :all]
+            [luduverse.db :refer :all]
+            [luduverse.db-models.user :as user]
+            [luduverse.db-models.competition :as competition]
+            [luduverse.db-models.source :as source]))
+
+(defn all []
+  (select entries))
+
+(defn by-ld-uid [ld-uid]
+  (first (select entries
+          (where {:ld_uid ld-uid}))))
+
+(defn exists? [ld-uid]
+  (not (empty? (select entries
+                       (fields :id)
+                       (where {:ld_uid ld-uid})
+                       (limit 1)))))
+
+(defn create! [fields]
+  (let [username (user/unique-user (:author fields))
+        competition-id (:id (competition/latest))]
+    (if-not (exists? (:ld_uid fields))
+      (insert entries (values {:ld_uid (:ld_uid fields)
+                               :title (:title fields)
+                               :description (:description fields)
+                               :type (:type fields)
+                               :user_id (:id username)
+                               :competition_id competition-id})))
+    (doseq [link (:links fields)]
+      (source/create! (:id (by-ld-uid (:ld_uid fields))) (:url link) (:title link)))))
diff --git a/src/luduverse/db-models/source.clj b/src/luduverse/db-models/source.clj
new file mode 100644
index 0000000..e842604
--- /dev/null
+++ b/src/luduverse/db-models/source.clj
@@ -0,0 +1,10 @@
+(ns luduverse.db-models.source
+  (:require [korma.core :refer :all]
+            [luduverse.db :refer :all]))
+
+(defn create! [entry_id uri title]
+;  (if (empty? (select sources (where {:entry_id entry_id :type title})))
+    (insert sources (values {:entry_id entry_id
+                             :uri uri
+                             :type title})));)
+
diff --git a/src/luduverse/db-models/user.clj b/src/luduverse/db-models/user.clj
new file mode 100644
index 0000000..ef41bb3
--- /dev/null
+++ b/src/luduverse/db-models/user.clj
@@ -0,0 +1,19 @@
+(ns luduverse.db-models.user
+  (:require [korma.core :refer :all]
+            [luduverse.db :refer :all]))
+
+(defn user-id [username]
+  (first (select users
+          (fields :id)
+          (where {:name username})
+          (limit 1))))
+
+(defn exists? [username]
+  (not (empty? (user-id username))))
+
+(defn create! [username]
+  (insert users (values {:name username})))
+
+(defn unique-user [username]
+  (if-not (exists? username) (create! username))
+  (user-id username))
diff --git a/src/luduverse/db.clj b/src/luduverse/db.clj
new file mode 100644
index 0000000..c558576
--- /dev/null
+++ b/src/luduverse/db.clj
@@ -0,0 +1,30 @@
+(ns luduverse.db
+  (:require [luduverse.db-schema :as schema]
+            [korma.core :refer :all]
+            [korma.db :refer [defdb mysql]]))
+
+(defdb db (mysql {:db "luduverse"
+                  :user "root"
+                  :password "dev"
+                  :host "localhost"}))
+
+(declare entities competitions users sources)
+
+(defentity entries
+  (database db)
+  (belongs-to contests)
+  (belongs-to users)
+  (has-many sources))
+
+(defentity competitions
+  (database db)
+  (has-many entries))
+
+(defentity users
+  (database db)
+  (has-many entities))
+
+(defentity sources
+  (database db)
+  (belongs-to entities))
+