5 files changed, 31 insertions, 5 deletions
diff --git a/app/Schema/Mysql.php b/app/Schema/Mysql.php
index cc691d1f..6c1c9da6 100644
--- a/app/Schema/Mysql.php
+++ b/app/Schema/Mysql.php
@@ -6,7 +6,15 @@ use PDO;
 use Kanboard\Core\Security\Token;
 use Kanboard\Core\Security\Role;
 
-const VERSION = 118;
+const VERSION = 119;
+
+function version_119(PDO $pdo)
+{
+    $pdo->exec('ALTER TABLE `comments` ADD COLUMN `date_modification` BIGINT(20)');
+    $pdo->exec('UPDATE `comments`
+        SET `date_modification` = `date_creation`
+        WHERE `date_modification` IS NULL');
+}
 
 function version_118(PDO $pdo)
 {
diff --git a/app/Schema/Postgres.php b/app/Schema/Postgres.php
index 32a7a744..9c72141a 100644
--- a/app/Schema/Postgres.php
+++ b/app/Schema/Postgres.php
@@ -6,7 +6,15 @@ use PDO;
 use Kanboard\Core\Security\Token;
 use Kanboard\Core\Security\Role;
 
-const VERSION = 97;
+const VERSION = 98;
+
+function version_98(PDO $pdo)
+{
+    $pdo->exec('ALTER TABLE "comments" ADD COLUMN date_modification BIGINT');
+    $pdo->exec('UPDATE "comments"
+        SET date_modificaiton = date_creation
+        WHERE date_modification IS NULL');
+}
 
 function version_97(PDO $pdo)
 {
diff --git a/app/Schema/Sql/mysql.sql b/app/Schema/Sql/mysql.sql
index 0ee88d88..03b6eca2 100644
--- a/app/Schema/Sql/mysql.sql
+++ b/app/Schema/Sql/mysql.sql
@@ -98,6 +98,7 @@ CREATE TABLE `comments` (
   `task_id` int(11) NOT NULL,
   `user_id` int(11) DEFAULT '0',
   `date_creation` bigint(20) DEFAULT NULL,
+  `date_modification` bigint(20) DEFAULT NULL,
   `comment` text,
   `reference` varchar(50) DEFAULT '',
   PRIMARY KEY (`id`),
@@ -768,4 +769,4 @@ UNLOCK TABLES;
 /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
 /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
 
-INSERT INTO users (username, password, role) VALUES ('admin', '$2y$10$R1zYk04d96KcHRpd9.r5I.5I6mgKIgUdsaISZYmaDLPIJCUO0FFJG', 'app-admin');INSERT INTO schema_version VALUES ('118');
+INSERT INTO users (username, password, role) VALUES ('admin', '$2y$10$R1zYk04d96KcHRpd9.r5I.5I6mgKIgUdsaISZYmaDLPIJCUO0FFJG', 'app-admin');INSERT INTO schema_version VALUES ('119');
diff --git a/app/Schema/Sql/postgres.sql b/app/Schema/Sql/postgres.sql
index 578b0c75..f37c37d3 100644
--- a/app/Schema/Sql/postgres.sql
+++ b/app/Schema/Sql/postgres.sql
@@ -195,6 +195,7 @@ CREATE TABLE "comments" (
     "task_id" integer NOT NULL,
     "user_id" integer DEFAULT 0,
     "date_creation" bigint NOT NULL,
+    "date_modification" bigint NOT NULL,
     "comment" "text",
     "reference" character varying(50) DEFAULT ''::character varying
 );
@@ -2613,4 +2614,4 @@ SELECT pg_catalog.setval('links_id_seq', 11, true);
 -- PostgreSQL database dump complete
 --
 
-INSERT INTO users (username, password, role) VALUES ('admin', '$2y$10$0.8BJyhOEBHGqfwD3nIJHuxObqTlZGJ/KRNDVHfSu7RGd42rEbSa.', 'app-admin');INSERT INTO schema_version VALUES ('97');
+INSERT INTO users (username, password, role) VALUES ('admin', '$2y$10$0.8BJyhOEBHGqfwD3nIJHuxObqTlZGJ/KRNDVHfSu7RGd42rEbSa.', 'app-admin');INSERT INTO schema_version VALUES ('98');
diff --git a/app/Schema/Sqlite.php b/app/Schema/Sqlite.php
index 11dcd537..d2a7899e 100644
--- a/app/Schema/Sqlite.php
+++ b/app/Schema/Sqlite.php
@@ -6,7 +6,15 @@ use Kanboard\Core\Security\Token;
 use Kanboard\Core\Security\Role;
 use PDO;
 
-const VERSION = 108;
+const VERSION = 109;
+
+function version_109(PDO $pdo)
+{
+    $pdo->exec('ALTER TABLE comments ADD COLUMN date_modification INTEGER');
+    $pdo->exec('UPDATE comments
+        SET date_modification = date_creation
+        WHERE date_modification IS NULL;');
+}
 
 function version_108(PDO $pdo)
 {