fix: functions migrations

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

@@ -37,7 +37,7 @@ data class Function(
         connection.sendQuery(up.script)
 
         this::class.java.classLoader.getResource("sql/migration/insertFunction.sql")!!.readText().let {
-            connection.selectOne<MigrationEntity>(it, listOf(up))?.let { function ->
+            connection.selectOne<MigrationEntity>(it, listOf(up.name, up.getDefinition(), up.script, down.script))?.let { function ->
                 executedAt = function.executedAt
                 doExecute = Action.OK
             }

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

@@ -37,10 +37,12 @@ data class Migrations private constructor(
     private val queries: MutableMap<String, Query> = mutableMapOf(),
     private val functions: MutableMap<String, Function> = mutableMapOf()
 ) {
-    constructor(directory: File, connection: Connection): this(connection) {
+    constructor(directory: File, connection: Connection): this(listOf(directory), connection)
+
+    constructor(directories: List<File>, connection: Connection): this(connection) {
         initDB()
         getMigrationFromDB()
-        getMigrationFromDirectory(directory)
+        getMigrationFromDirectory(directories)
         queries.forEach { (_, query) ->
             if (query.doExecute === null) {
                 query.doExecute = Action.DOWN
@@ -75,6 +77,15 @@ data class Migrations private constructor(
         }
     }
 
+    /**
+     * Get all migration from multiples Directories
+     */
+    private fun getMigrationFromDirectory(directory: List<File>) {
+        directory.forEach {
+            getMigrationFromDirectory(it)
+        }
+    }
+
     /**
      * Get all migration from Directory
      */

src/main/resources/sql/migration/createFunctionShema.sql

@@ -9,5 +9,3 @@ CREATE TABLE IF NOT EXISTS migration.functions
     down        text                    NOT NULL,
     version     int                     NOT NULL
 );
-
-CREATE SEQUENCE IF NOT EXISTS migration.version_seq;

src/main/resources/sql/migration/getNextVersion.sql

@@ -1 +0,0 @@
-SELECT nextval('migration.version_seq');

src/main/resources/sql/migration/insertFunction.sql

@@ -1,3 +1,7 @@
 INSERT INTO migration.functions as f (filename, definition, executed_at, up, down, version)
-VALUES (?, ?, now(), ?, ?, ?)
+VALUES (?, ?, now(), ?, ?, (
+    select coalesce(max(version), 0)+1
+    from migration.functions f2
+    where filename = f2.filename
+))
 RETURNING to_json(f);

src/main/resources/sql/migration/insertHistory.sql

@@ -1,3 +1,7 @@
 INSERT INTO migration.history as h (filename, executed_at, up, down, version)
-VALUES (?, now(), ?, ?, nextval('migration.version_seq'))
+VALUES (?, now(), ?, ?, (
+    select coalesce(max(version), 0)+1
+    from migration.history f2
+    where filename = f2.filename
+))
 RETURNING to_json(h);