TAN-987: Update User and Session table to add createdAt (allow nulls …

db/README.md

@@ -4,11 +4,12 @@
 erDiagram
     Achievement {
         timestamp_with_time_zone createdAt "{NOT_NULL}"
-        timestamp_with_time_zone deletedAt
-        text description
+        timestamp_with_time_zone deletedAt 
+        text description 
         uuid id PK "{NOT_NULL}"
-        boolean isActive
+        boolean isActive 
         Tag leaderboard "<Patina,Hunter,Nyu,Baruch,Rpi,Gwc,Sbu,Ccny,Columbia,Cornell,Bmcc,MHCPlusPlus>"
+        uuid leaderboardId FK "{NOT_NULL}"
         AchievementPlaceEnum place "<ONE,TWO,THREE>  {NOT_NULL}"
         character_varying title "{NOT_NULL}"
         uuid userId FK "{NOT_NULL}"
@@ -19,7 +20,7 @@ erDiagram
         timestamp_with_time_zone expiresAt "{NOT_NULL}"
         uuid id PK "{NOT_NULL}"
         text message "{NOT_NULL}"
-        boolean showTimer
+        boolean showTimer 
     }
 
     ApiKey {
@@ -39,72 +40,72 @@ erDiagram
 
     Auth {
         timestamp_with_time_zone createdAt "{NOT_NULL}"
-        text csrf
+        text csrf 
         uuid id PK "{NOT_NULL}"
         text token "{NOT_NULL}"
     }
 
     BackgroundTask {
         timestamp_with_time_zone completedAt "{NOT_NULL}"
         uuid id PK "{NOT_NULL}"
-        BackgroundTaskEnum task "<LEETCODE_QUESTION_BANK>  {NOT_NULL}"
+        BackgroundTaskEnum task "<LEETCODE_QUESTION_BANK,USER_METRICS>  {NOT_NULL}"
     }
 
     Club {
-        text description
+        text description 
         uuid id PK "{NOT_NULL}"
         character_varying name "{NOT_NULL}"
         character_varying password "{NOT_NULL}"
         character_varying slug UK "{NOT_NULL}"
-        character_varying splashIconUrl
+        character_varying splashIconUrl 
         Tag tag "<Patina,Hunter,Nyu,Baruch,Rpi,Gwc,Sbu,Ccny,Columbia,Cornell,Bmcc,MHCPlusPlus>  {NOT_NULL}"
     }
 
     DiscordClub {
         timestamp_with_time_zone createdAt "{NOT_NULL}"
-        timestamp_with_time_zone deletedAt
-        text description
+        timestamp_with_time_zone deletedAt 
+        text description 
         uuid id PK "{NOT_NULL}"
         text name "{NOT_NULL}"
         Tag tag "<Patina,Hunter,Nyu,Baruch,Rpi,Gwc,Sbu,Ccny,Columbia,Cornell,Bmcc,MHCPlusPlus>  {NOT_NULL}"
     }
 
     DiscordClubMetadata {
         uuid discordClubId FK "{NOT_NULL}"
-        text guildId
+        text guildId 
         uuid id PK "{NOT_NULL}"
-        text leaderboardChannelId
+        text leaderboardChannelId 
     }
 
     Job {
         integer attempts "{NOT_NULL}"
-        timestamp_with_time_zone completedAt
+        timestamp_with_time_zone completedAt 
         timestamp_with_time_zone createdAt "{NOT_NULL}"
         uuid id PK "{NOT_NULL}"
         timestamp_with_time_zone nextAttemptAt "{NOT_NULL}"
-        timestamp_with_time_zone processedAt
+        timestamp_with_time_zone processedAt 
         character_varying questionId "{NOT_NULL}"
         JobStatus status "<COMPLETE,PROCESSING,INCOMPLETE>  {NOT_NULL}"
     }
 
     Leaderboard {
         timestamp_with_time_zone createdAt "{NOT_NULL}"
-        timestamp_with_time_zone deletedAt
+        timestamp_with_time_zone deletedAt 
         uuid id PK "{NOT_NULL}"
         character_varying name "{NOT_NULL}"
-        timestamp_with_time_zone shouldExpireBy
-        text syntaxHighlightingLanguage
+        timestamp_with_time_zone shouldExpireBy 
+        text syntaxHighlightingLanguage 
     }
 
     Lobby {
         timestamp_with_time_zone createdAt "{NOT_NULL}"
-        timestamp_with_time_zone expiresAt
+        timestamp_with_time_zone expiresAt 
         uuid id PK "{NOT_NULL}"
         text joinCode "{NOT_NULL}"
         integer playerCount "{NOT_NULL}"
         LobbyStatusEnum status "<CLOSED,AVAILABLE,ACTIVE,COMPLETED>  {NOT_NULL}"
         boolean tie "{NOT_NULL}"
-        uuid winnerId FK
+        uuid winnerId FK 
     }
 
     LobbyPlayer {
@@ -117,8 +118,8 @@ erDiagram
     LobbyPlayerQuestion {
         uuid id PK "{NOT_NULL}"
         uuid lobbyPlayerId FK,UK "{NOT_NULL}"
-        integer points
-        uuid questionId FK,UK
+        integer points 
+        uuid questionId FK,UK 
     }
 
     LobbyQuestion {
@@ -147,28 +148,28 @@ erDiagram
 
     Question {
         double_precision acceptanceRate "{NOT_NULL}"
-        text code
+        text code 
         timestamp_with_time_zone createdAt "{NOT_NULL}"
-        text description
+        text description 
         uuid id PK "{NOT_NULL}"
-        text language
-        character_varying memory
-        integer pointsAwarded
+        text language 
+        character_varying memory 
+        integer pointsAwarded 
         question_difficulty questionDifficulty "<Easy,Medium,Hard>  {NOT_NULL}"
         text questionLink "{NOT_NULL}"
         smallint questionNumber "{NOT_NULL}"
         character_varying questionSlug "{NOT_NULL}"
         text questionTitle "{NOT_NULL}"
-        character_varying runtime
-        text submissionId UK
+        character_varying runtime 
+        text submissionId UK 
         timestamp_with_time_zone submittedAt "{NOT_NULL}"
         uuid userId FK "{NOT_NULL}"
     }
 
     QuestionBank {
         real acceptanceRate "{NOT_NULL}"
         timestamp_with_time_zone createdAt "{NOT_NULL}"
-        text description
+        text description 
         uuid id PK "{NOT_NULL}"
         question_difficulty questionDifficulty "<Easy,Medium,Hard>  {NOT_NULL}"
         text questionLink "{NOT_NULL}"
@@ -189,7 +190,7 @@ erDiagram
     Report {
         timestamp_with_time_zone createdAt "{NOT_NULL}"
         text description "{NOT_NULL}"
-        character_varying email
+        character_varying email 
         uuid id PK "{NOT_NULL}"
         character_varying title "{NOT_NULL}"
     }
@@ -205,11 +206,19 @@ erDiagram
         character_varying discordId UK "{NOT_NULL}"
         character_varying discordName "{NOT_NULL}"
         uuid id PK "{NOT_NULL}"
-        character_varying leetcodeUsername UK
-        character_varying nickname
-        character_varying profileUrl
-        character_varying schoolEmail
-        text verifyKey
+        character_varying leetcodeUsername UK 
+        character_varying nickname 
+        character_varying profileUrl 
+        character_varying schoolEmail 
+        text verifyKey 
+    }
+
+    UserMetrics {
+        timestamp_with_time_zone createdAt "{NOT_NULL}"
+        timestamp_with_time_zone deletedAt 
+        uuid id PK "{NOT_NULL}"
+        integer points "{NOT_NULL}"
+        uuid userId FK "{NOT_NULL}"
     }
 
     UserTag {
@@ -225,7 +234,7 @@ erDiagram
     }
 
     flyway_schema_history {
-        integer checksum
+        integer checksum 
         character_varying description "{NOT_NULL}"
         integer execution_time "{NOT_NULL}"
         character_varying installed_by "{NOT_NULL}"
@@ -234,9 +243,10 @@ erDiagram
         character_varying script "{NOT_NULL}"
         boolean success "{NOT_NULL}"
         character_varying type "{NOT_NULL}"
-        character_varying version
+        character_varying version 
     }
 
+    Achievement }o--|| Leaderboard : "leaderboardId"
     Achievement }o--|| User : "userId"
     ApiKey }o--|| User : "updatedBy"
     ApiKeyAccess }o--|| ApiKey : "apiKeyId"
@@ -254,6 +264,7 @@ erDiagram
     QuestionTopic }o--|| Question : "questionId"
     QuestionTopic }o--|| QuestionBank : "questionBankId"
     Session }o--|| User : "userId"
+    UserMetrics }o--|| User : "userId"
     UserTag }o--|| User : "userId"
 ```
 
@@ -264,12 +275,12 @@ erDiagram
 </p>
 <p align="center">
     <i>
-        Also view in <a href="https://mermaid.live/edit#pako:eNrtWm1v2zgS_iuGP1NFk6abTbBYwHF0Ta5uksZOizsUMGiKlrimSC1f4qjd_PcdUpYtxZZst9kUB1zQpBY9M5x5ZjgzJPWtS2REu6ddqs4ZjhVOv4gO_PRIwug9TakwnW_FkPsxLKXa4DQbz5lJxu5x_FUK2iGKYkOjnul86X67uh6Nr-4Gg8cv3R1YI8qpZ63Q0gcD45oolhkmxeoba1nUgX837xsnmkjJKRYdpnvEsHu6-maE4w58FVE1kVhFIOG3G2yYwOjCCkMVusotOsPKkgTdZgy9mxM0nFjUJyJHfcltOmEYPihBOUdnKSHow0X_hlvtfn-vKlHB74ZjQkNh007mPrlZr69CNPp8jUYXt2H4e6ez2RCSYIUJ6DW-xypnIgYMDaeNhntsrKbqMur8azM-j18WWPaEkFaQF3EwfciYorqFdQev-pCACTSO6VbX60TORzC_emp1xt7TvGavE4v98AXWSefu_f72_XRomqTbLNqiWBEyBdlZvj1qPFA9QsAPVRSr4z7ScUHi0fzt3ef--DbsnY_P_jO-G4a3aBQOR-NPvcFdc-x7xQq_-GhGLY7ZAtFKe2uS54p1FzZEq-n-MWzkjIp2Rc8wmcUK1mc0wnq2m8oyzRZp9EdCqT6zd6VxKoAXB2E46l-fh-OPd-C-y-ur8Vnv6v1GBy4N6XM7WVtt35vX19OhwCndgzzDWs-lz_u7smhu47acsIEDkrxOLokUd4rXS4-B32cuOa3onzNNwNw1J_wP1HDP3OrenwzoB2owZE1cBdbbFa1omsvw0sTYMh5dRvtjU2lj-gkWYEwpZantv2XN7QzQianqYGNomhn9HXVulWOeJZp-pLQJAKFXWPI98Zop6QpU3ZT1xfynBXaI3cvmnAEoDw02Vnd08R8EZP_6w80gHIXo5va6Hw6Hl1fv0OVVOdoeY4NKf_ryi_b503Dj7NCjWR6FvgE6y5-Et86FwQ8XLE44_MLyjgdYxBZ6v6dwyckkf7EGdv91-odkog87rEaqcllC2cip6kPpbVbQG1tEmy_NlYgbXA_Dc9T71Lsc9M4GIer1R5efQlTG3Hljo1W2zIZt2VjMGWSZYmuxyQc3Xv-1dNgOkSfhjr09V3q6AqF2wiWaAHtDituk9sfFOv9u9W9WurV1qnX1ngiqJBsvZZO6mxT9ZzPwXi4qTTjDYrabo9x2dSj5PY2aQ38Jwaai-xLWr1LybkYZaTAfQhvwPHv1m-vRebPJ0prntjqSdsLpOFOUMO2iLbXcsIwzsG3P3nl38uazjSUQm6J_TVe39cwMFoTeAhJbdnCQmZ9vP_hDzS6v1bfNEKU0lSpvSie9OQQorfSS5WocR2w6ZQR8mC_HzldDUD5CrHP0gUbMpugCpDRWC69qKWPAxKzRKJ1izkGtJfUVdN57xU_JOGyLo5pCo9bjsfUZFGQccPLT3sNOUqZ1kYnLNNzeyjgOs8tJy24L_mMljVZjHcKQ7xzfPymY_x90zf4cyYyRFy5eayW56E_CB7Cb5x03mZw-pZKq2o2kVpvOBPZcUgTCcv6qc7nGwfTya9QxCTwab6yiU6rcQwcvWToTF9fl06tGlberW1d1oUqruvuqukoGNT0HlBpXPLxHi2MyL6M48ASXkhlynUqgDXgyRYr-QYkTGGjwNoRojGIqU2pUjohrfNwILDkWCwR70wmeMM5MHmARBa7LZ6AN0ShlgqU2DXQGW35gCUA6RSCOBnpOaYaEj_fAJBQKBVLSrYY4SLBOkKaxO-wvWCaMSGjnIfSjwG3rAVdhUCqFNFIwEhQWMFgZ2EiFAA5LkcIRewi0VAZNLJlRU3zWiTtJcbWJfcXORgRGO3ugJk8dA6xvmI1YpaggucdlgjUFRmAHnIMMG9APHhwXaDwDrTiYjDRnkTMA9h6RnCNtp04gVgqDGFf486BGDuDwQgUJpVDBuKYGxQpnCUrdJOVwijMUw7a1RCrKYRMLdgP27g4sdYpAR2GV83wFlwIIEKXYAxBAOr-XTK2cmlIV0wIWgHXChIPPec6Vapdq2L0DX0C2KRyhwMMyZV9pBMMmxXqGJhAxkUmCKVOAjaZYkWQBKehtSOKjB5ijHGixkwxoKjQBlxmYY-a-B2FALFhWAmKFi74pAFnOX0gu1DBzGfguAlYAWuALVeaJEtRyqhgWAWGKWGbQIpYq4pyiUsTgmE0BRiE-XUg5hRKKM8CbAT4Q6AWwEbtnEfVRD-wwppCL3WBqBSmY3BOEDweVFYM_MpNcxoxgXqD-p2VkpimHmUvFwGT6AGp4ZcvFVlBbMRNyLtorj1_ZjfVgmeRvaQYin_N-oVKC96hgNMWM_-CJzg69-JD6rLiTvdtvudZV2KG07dhN3en6uUR54oEjWOZ7aLQ42fVN4f5sV22HZN_lJL6oQc4-fwRX7VU3nNLBwnBkrTckSk4Zp7Wbiw0bO5IAhGE9znzE3kN6mObvab7BBe7A_sVan_J2oKjH__QFwXpENh0CLRH5TOmM5x8W99kvgsty7inP5zgfgxshV4yhAYIalW-6KgACSKY2bQ3vHZJUKQ_SMLF-c-DM2icZCICEcxqNJ_mOO576schKwA5qroiVa1T3WpQFGNtfULDFBfkeKTnP9kEMVqJebt1WN-CVt3oeZRD89VeRHU9BchG7pdTFmxJrROWrAnW6xRsBC-oFr6Mvb_BL8k03aAuu6m2lY61dpJX8T5mqtyWOqXZUVzIVdwRPTSnPs2tUi1PsUrpn9HKLA9Aa7fI0aifquuSlFuWh9gbajfIXYpaz3OzOv3x2zKv9UKtNtZOIKl-x12pyS0NQPZW-hazYLu-mfSvPFu3LVqZdq7KGNVN1UTdWLOqeGgW9bBc6XSiR8Nj1qfVLF_YaUH67PrixmjmWR-CBvdx_pUxLNiVtnHRPp5jDFmmx4Bav5i1JKLS0xV1R9_TgzVsvo3v6rfvQPQ1-ffv61dvD129Ojo6ODk5Ojg5RN--ensDgweuT48PXB8cHh8cHvzyi7lc_6-GrX4-P3xwcHRyfHP3y-u2RE1fMGkYMKsNSFWyNHOaCFFo8_g2cdDko"><code>mermaid.live</code></a>
+        Also view in <a href="https://mermaid.live/edit#pako:eNrtWntv2zgS_yqC_6aKptemabBYwHG0Ta7Oo7HT4hYBDFqiJa4pUstHHLWb775DyZIl25LlNJveAVc0bSzPDOfx4zxIfe_5IiC94x6RpxSHEsd33IE_fT-i5J7EhGvne_7I_tE0JkrjOJksqI4m9uPkm-DE8SXBmgR97dz1vl9ejSeXt8Ph412vA2tAGFmyrojJg4YvlC9poqngla-MoYEDf68_NS41FYIRzB2q-r6m96TCPcahA98FRE4FlgGI-OUaa8oxOjNcE4kuU4NOsDR-hG4Sij4ufDSaGjTweYoGgpl4SjH8IjlhDJ3Evo8uzgbXzCj782tVi0zRylrngfNbs84Vh18z7BOPm9hJ7G9Wx6tLD42_XqHx2Y3n_eo422X4EZbYBysm91imlIfgdM1I45qZhkYR2aza4x1fAoJzYbj_IoggDwmVRLWwdgBBBiFYQOGQ7ESKisRiDOtLZ93shH4iac1gKxdnj8-wipzbT_sb-NN90yTdJMEOxXLM5GQn6W7YZI7q-z4EourF6vMM6jgnybz5y8evg8mN1z-dnPxncjvybtDYG40nX_rD22bwZ4rlccngjFoCs8NFK-2Njp4L7BY2vpIzZ38UazEnvF3TE-zPQwk7NBhjNe-ms4iTMvM-HUv1lbNYaqsChHHoeePB1ak3-XwL8Tu_upyc9C8hMBDRyYU3vjkfjLaGs7RqwMx0Y-89uSxspkeOY7IHeYKVWoisanRlUcyEbSliCwckfRWd-4LfSrZWuTT8PHPFavX_KVU-2LsRhv-JLiDjbo3wT3bpBdEY8iiuujazK1jRtDcNmYmhocw2F_s7p9KcDCLMwZpSTKnvv0Ut9BT8E0KZxFqTONHqCbWvmnaeA1I_Uu84uKGfm_IU0CZS2Kq1Zsvmnv7TAD8A-Lw5dYCfRxproxyV_wegHFxdXA-9sYeub64G3mh0fvkRnV8WT9txNqw0uT9h6z5_Om5cHno3wwIv64ugI1nDuEq5xg9nNIwY_MAmD4eYhyZrCtc8JqbT9AVb27236x-C8gFMa41UxeaECpISOYCa3KxhZm2OuKxmV1A3vBp5p6j_pX8-7J8MPdQfjM-_eKjA3WljC1Z005rumDkWFJJNMXVsicJ1ZsBGXmz3UT5vWfb2pJnR5S5qJyzdCX5vyHTb1P683OxPVv96pVtbE7uuXl1SJeUsxWxReJuq_2wm3itIhQ0nmM-7hcoOsyPB7knQjP7SBdvq70tY3_VIoDBKC43ZCDqC55nkr6_Gp80mC6Of2-pAmCkjk0QSnyqLttgwTRNG7bi9Xyfdnbz55KN0xDb0b-hq59JEY-6TG_DEjvEuS87PNi3-WOfL6mVuu5diEgtZrZn1pNJfAEhJtbUstuQkoLMZ9SGQafnsdPUIyoiHVYouSEBNjM5ATGPVyLQtZAwpnzfapWLMGOhVUl9CJ74XiArGURuYagqNW0_QNleQkHZoTDbaEDONqVJ5Qi6zcXtfY1l0l9OYbvv-cyWbViEPYGSdYf6zIP1_3DUHdCwS6r9wEdsozXmn4j2A3Sx17GJitk4lZLUtiY3SzhRmMMFdbhh75ZxvcFBVfo0cHcFHnRkryYxI-8HBJYsztcAuPr1qVHm3unVVl6q0qruvqqt0UNNzSIi2RSSLaH6UlsnIT0UhpP4c2Y7FVRoiGSNJ_iC-FegqiDZANEQhETHRMkW-bYDsE9hzNOQIZtUpnlJGdepiHri24aegja9QTDmNTeyqBHMOLC5IJwjEEVctCEkQz_Du6ohAtUBS2N0QuhFWEVIktFcCOcuU-gI6e4B-4No5H_zKNYoFF1pw6ru5BRR2BtZCInCHIUjigD64SkiNpsafE53_riJ7uGILFP2GrY0IjLb2QG2eWQbY37Cab6Qk3E8zv0yxIsAI7OBnN8Ea9IMPlgs0noNWDExGitHAGgBjSCAWSJmZFYilxCDGNgCpWyMH57BcBQHlUMJzRTQKJU4iFNtFiscxTlAIQ2zhqSCFkRbsBt_bq7XYKgKdhZE28hW_5I4AUZI-AAHk83tB5SqoMZEhyd0Cbp1Sbt1nI2fLtU019N46n0O2yQMhIcIipt9IAI91jNUcTQExgY7cGZXgG0Ww9KOlS0Fv7UcZeoA5SIEWW8ngTYmmEDINa8zt9yAMiDlNCocYbtE3A0cW6-eSczX0QrhZJwE7AC39C2VmTQliGJEUc9en0jdUoyWWKuKsooKHEJhtACOATwspq1BEcAL-puAfAHru2IDe04BkqAd2eCaRxa47M9zPmewngA8DlSWFf0QimAipj1nu9T8N9eeKMFi5UAxMJg-gRqZssdlyasPnXCx4e-XJdnZjPSiT_A1JQORzXkLUanDnCkZiTNmPHvB0aMpHJEuLnQzefRe2qUKH2taxn7pV9SOK4vQDB7DP99Boedq77Av3ZbtsOzN7UpDYsghZ-7ITuVq7uuXUDrZGfnLXdnUixYwyUr_S2DLk-RF40VvDWgbbe8gRs9Rexm6JA4zyNh_-l550djhIegr47PXFi3V9xV1J3or809clm-5oOgkrPfKVkDlLL5YX_i_il3LtGUsXOJ0AeiFNTqD303aq3nJtAgRQR6Cva93ZHRJ0IRBKkG-ywSifOrvnQQ4-YYwEk2nacSPUj4ZWAjqouSKWtknfKx_lztj9CofJ3yDYoxqlyT4egwSkVnPr6h2ByptSj8J1__qrdvdyDCvUTvyKRbbwZRXFMuSoLynzd1A2iIqXMOp0y3ctltRLXktfvBtRkG-7iVxyVe99LWvtQrLgX2fqZHV-ybJuSnEfUKNaXgIU0jPGTG5-elyjLY_yOlHXJZdaFHcCW2i3yl-KKVe57s5ffrbMqyGy1aba-U2VLx9Qm8LSAKp16TvI8jOGbtq38uzQvmj_2rWqlvzdlLZ0NVP1UC-UNOgdawmjQg8GCeg-4GMvS993PRjlYnLXs0ww4pkHN8ByDnMEE9KyPwI_jM2_CxEXIqQwYdQ7nmEG0-hymy5friyfwswaLK_oesfv3rzPhPSOv_ceesdHB69eH3x4d_ivd4eHhwevj96iXto7Pnj_7tXBwdH7g7cfDg4PX797e_iIet-yZV-_Ojo6enN0ePD-w9Gbt2_h98e_Aa8Xti4"><code>mermaid.live</code></a>
     </i>
 </p>
 <p align="center">
     <i>
-        Last updated: 02/15/2026
+        Last updated: 09/26/2026
     </i>
 </p>
 

db/migration/V0079__Add_createdAt_column_to_User_and_Session_tables.SQL

@@ -0,0 +1,19 @@
+-- check only applies to new rows not being null, not old rows
+
+ALTER TABLE IF EXISTS "User"
+ADD COLUMN "createdAt" TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE IF EXISTS "User"
+ALTER COLUMN "createdAt" SET DEFAULT NOW();
+
+ALTER TABLE IF EXISTS "User"
+ADD CONSTRAINT "ck_user_createdAt_not_null" CHECK ("createdAt" IS NOT NULL) NOT VALID;
+
+ALTER TABLE IF EXISTS "Session"
+ADD COLUMN "createdAt" TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE IF EXISTS "Session"
+ALTER COLUMN "createdAt" SET DEFAULT NOW();
+
+ALTER TABLE IF EXISTS "Session"
+ADD CONSTRAINT "ck_session_createdAt_not_null" CHECK ("createdAt" IS NOT NULL) NOT VALID;

src/main/java/org/patinanetwork/codebloom/common/db/models/Session.java

@@ -1,13 +1,15 @@
 package org.patinanetwork.codebloom.common.db.models;
 
 import java.time.LocalDateTime;
+import java.time.OffsetDateTime;
 import java.util.Optional;
 import lombok.Builder;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.Setter;
 import lombok.ToString;
 import org.patinanetwork.codebloom.common.db.helper.annotations.NotNullColumn;
+import org.patinanetwork.codebloom.common.db.helper.annotations.NullColumn;
 
 @Getter
 @Setter
@@ -25,6 +27,10 @@ public class Session {
     @NotNullColumn
     private LocalDateTime expiresAt;
 
+    /** can be null if it's an old entry */
+    @NullColumn
+    private OffsetDateTime createdAt;
+
     // public Session(final String userId, final LocalDateTime expiresAt) {
     // this.userId = userId;
     // this.expiresAt = expiresAt;

src/main/java/org/patinanetwork/codebloom/common/db/models/user/User.java

@@ -1,5 +1,6 @@
 package org.patinanetwork.codebloom.common.db.models.user;
 
+import java.time.OffsetDateTime;
 import java.util.ArrayList;
 import java.util.List;
 import lombok.Builder;
@@ -50,6 +51,10 @@ public class User {
     @NullColumn
     private String schoolEmail;
 
+    /** can be null if it's an old entry */
+    @NullColumn
+    private OffsetDateTime createdAt;
+
     /**
      * If you want to update tags in the database, you have to use the
      * {@link org.patinanetwork.codebloom.common.db.repos.usertag.UserTagRepository}

src/main/java/org/patinanetwork/codebloom/common/db/repos/session/SessionSqlRepository.java

@@ -1,9 +1,12 @@
 package org.patinanetwork.codebloom.common.db.repos.session;
 
+import java.time.OffsetDateTime;
 import java.util.ArrayList;
+import java.util.Map;
 import java.util.Optional;
 import java.util.UUID;
 import org.patinanetwork.codebloom.common.db.models.Session;
+import org.patinanetwork.codebloom.common.time.StandardizedOffsetDateTime;
 import org.springframework.jdbc.core.RowMapper;
 import org.springframework.jdbc.core.simple.JdbcClient;
 import org.springframework.stereotype.Component;
@@ -15,6 +18,7 @@ public class SessionSqlRepository implements SessionRepository {
             .id(Optional.of(rs.getString("id")))
             .userId(rs.getString("userId"))
             .expiresAt(rs.getTimestamp("expiresAt").toLocalDateTime())
+            .createdAt(StandardizedOffsetDateTime.normalize(rs.getObject("createdAt", OffsetDateTime.class)))
             .build();
 
     private JdbcClient jdbcClient;
@@ -25,7 +29,8 @@ public SessionSqlRepository(final JdbcClient jdbcClient) {
 
     @Override
     public void createSession(final Session session) {
-        String sql = "INSERT INTO \"Session\" (id, \"userId\", \"expiresAt\") VALUES (?, ?, ?) RETURNING \"id\"";
+        String sql =
+                "INSERT INTO \"Session\" (id, \"userId\", \"expiresAt\") VALUES (?, ?, ?) RETURNING \"id\", \"createdAt\"";
         // Don't want dashes inside of the cookie, so better to just remove it from the
         // ID altogether.
         session.setId(Optional.of(UUID.randomUUID().toString().replace("-", "")));
@@ -39,21 +44,24 @@ public void createSession(final Session session) {
                                         () -> new IllegalStateException("Session ID must be present for insertion.")))
                 .param(2, UUID.fromString(session.getUserId()))
                 .param(3, session.getExpiresAt())
-                .query((rs, rowNum) -> rs.getString("id"))
+                .query((rs, rowNum) -> Map.entry(rs.getString("id"), rs.getObject("createdAt", OffsetDateTime.class)))
                 .optional()
-                .ifPresent(id -> session.setId(Optional.of(id)));
+                .ifPresent(entry -> {
+                    session.setId(Optional.of(entry.getKey()));
+                    session.setCreatedAt(StandardizedOffsetDateTime.normalize(entry.getValue()));
+                });
     }
 
     @Override
     public Optional<Session> getSessionById(final String id) {
-        String sql = "SELECT id, \"userId\", \"expiresAt\" FROM \"Session\" WHERE id=?";
+        String sql = "SELECT id, \"userId\", \"expiresAt\", \"createdAt\" FROM \"Session\" WHERE id=?";
 
         return jdbcClient.sql(sql).param(1, id).query(SESSION_ROW_MAPPER).optional();
     }
 
     @Override
     public ArrayList<Session> getSessionsByUserId(final String id) {
-        String sql = "SELECT id, \"userId\", \"expiresAt\" FROM \"Session\" WHERE \"userId\"=?";
+        String sql = "SELECT id, \"userId\", \"expiresAt\", \"createdAt\" FROM \"Session\" WHERE \"userId\"=?";
 
         return new ArrayList<>(jdbcClient
                 .sql(sql)