feature #2: save executed migration in DB

src/main/kotlin/fr/postgresjson/migration/Query.kt

@@ -2,6 +2,8 @@ package fr.postgresjson.migration
 
 import fr.postgresjson.connexion.Connection
 import fr.postgresjson.entity.Entity
+import fr.postgresjson.migration.Migration.Action
+import java.io.File
 import java.util.*
 
 class Query(
@@ -11,16 +13,27 @@ class Query(
     private val connection: Connection,
     override var executedAt: Date? = null
 ): Migration, Entity<String?>(name) {
+    override var doExecute: Action? = null
+
     override fun up(): Migration.Status {
         connection.exec(up).join()
-        // TODO insert to migration Table
+
+        File(this::class.java.getResource("/sql/migration/insertHistory.sql").toURI()).let {
+            connection.selectOne<String, MigrationEntity?>(it.readText(), listOf(name, up, down))?.let { query ->
+                executedAt = query.executedAt
+                doExecute = Action.OK
+            }
+        }
 
         return Migration.Status.OK
     }
 
     override fun down(): Migration.Status {
         connection.exec(down).join()
-        // TODO insert to migration Table
+
+        File(this::class.java.getResource("/sql/migration/deleteHistory.sql").toURI()).let {
+            connection.exec(it.readText(), listOf(name))
+        }
 
         return Migration.Status.OK
     }
@@ -44,8 +57,4 @@ class Query(
 
         return Migration.Status.OK // TODO
     }
-
-    override fun doExecute(): Boolean {
-        return executedAt === null
-    }
 }