feat: Database: Exposed: 添加 UUID 列

Author: ExerciseBook

database-exposed/build.gradle

@@ -22,6 +22,8 @@ dependencies {
     api 'org.jetbrains.exposed:exposed-spring-boot-starter:0.36.2'
     // api 'org.jetbrains.exposed:exposed-kotlin-datetime:0.36.2'
     api 'org.jetbrains.exposed:exposed-java-time:0.36.2'
+
+    api project(path: ':support')
 }
 
 test {

database-exposed/src/main/java/com/tairitsu/ignotus/database/exposed/model/entity/BaseLongIdWithUUIDEntity.kt

@@ -0,0 +1,27 @@
+package com.tairitsu.ignotus.database.exposed.model.entity
+
+import com.tairitsu.ignotus.database.exposed.model.table.BaseLongIdWithUUIDTable
+import org.jetbrains.exposed.dao.*
+import org.jetbrains.exposed.dao.id.EntityID
+import java.time.LocalDateTime
+
+abstract class BaseLongIdWithUUIDEntity(id: EntityID<Long>, table: BaseLongIdWithUUIDTable) : LongEntity(id) {
+    val uuid by table.uuid
+    val createdAt by table.createdAt
+    var updatedAt by table.updatedAt
+}
+
+abstract class BaseLongIdWithUUIDEntityClass<E : BaseLongIdWithUUIDEntity>(table: BaseLongIdWithUUIDTable) :
+    LongEntityClass<E>(table) {
+    init {
+        EntityHook.subscribe { action ->
+            if (action.changeType == EntityChangeType.Updated || action.changeType == EntityChangeType.Created) {
+                try {
+                    action.toEntity(this)?.updatedAt = LocalDateTime.now()
+                } catch (ignored: Exception) {
+                    //nothing much to do here
+                }
+            }
+        }
+    }
+}

database-exposed/src/main/java/com/tairitsu/ignotus/database/exposed/model/table/BaseLongIdTable.kt

@@ -11,3 +11,4 @@ abstract class BaseLongIdTable(name: String) : LongIdTable(name) {
     val createdAt = datetime("created_at").clientDefault { LocalDateTime.now() }
     val updatedAt = datetime("updated_at").nullable()
 }
+

database-exposed/src/main/java/com/tairitsu/ignotus/database/exposed/model/table/BaseLongIdWithUUIDTable.kt

@@ -0,0 +1,12 @@
+package com.tairitsu.ignotus.database.exposed.model.table
+
+import com.tairitsu.ignotus.support.util.UUIDUtils
+import org.jetbrains.exposed.dao.id.LongIdTable
+import org.jetbrains.exposed.sql.javatime.datetime
+import java.time.LocalDateTime
+
+abstract class BaseLongIdWithUUIDTable(name: String) : LongIdTable(name) {
+    val uuid = varchar("uuid", 36).clientDefault { UUIDUtils.createNoLeadingDigitId() }.uniqueIndex()
+    val createdAt = datetime("created_at").clientDefault { LocalDateTime.now() }
+    val updatedAt = datetime("updated_at").nullable()
+}

spring-boot-demo/src/main/java/moe/bit/ignotusdemo/config/AutoMigration.kt

@@ -0,0 +1,20 @@
+package moe.bit.ignotusdemo.config
+
+import moe.bit.ignotusdemo.model.table.GroupTable
+import moe.bit.ignotusdemo.model.table.UserTable
+import org.jetbrains.exposed.spring.SpringTransactionManager
+import org.jetbrains.exposed.sql.SchemaUtils
+import org.jetbrains.exposed.sql.transactions.transaction
+import org.springframework.stereotype.Component
+import javax.annotation.PostConstruct
+
+@Component
+class AutoMigration(springTransactionManager: SpringTransactionManager) {
+    @PostConstruct
+    fun init() {
+        transaction {
+            SchemaUtils.create(UserTable)
+            SchemaUtils.create(GroupTable)
+        }
+    }
+}

spring-boot-demo/src/main/java/moe/bit/ignotusdemo/model/entity/UserEntity.kt

@@ -1,13 +1,13 @@
 package moe.bit.ignotusdemo.model.entity
 
+import com.tairitsu.ignotus.database.exposed.model.entity.BaseLongIdWithUUIDEntity
+import com.tairitsu.ignotus.database.exposed.model.entity.BaseLongIdWithUUIDEntityClass
 import moe.bit.ignotusdemo.model.table.UserTable
-import com.tairitsu.ignotus.database.exposed.model.entity.BaseLongIdEntity
-import com.tairitsu.ignotus.database.exposed.model.entity.BaseLongIdEntityClass
 import org.jetbrains.exposed.dao.id.EntityID
 import java.util.function.Consumer
 
-class UserEntity(id: EntityID<Long>) : BaseLongIdEntity(id, UserTable) {
-    companion object : BaseLongIdEntityClass<UserEntity>(UserTable) {
+class UserEntity(id: EntityID<Long>) : BaseLongIdWithUUIDEntity(id, UserTable) {
+    companion object : BaseLongIdWithUUIDEntityClass<UserEntity>(UserTable) {
         @JvmStatic
         fun create(init: Consumer<UserEntity>) = new { init.accept(this) }
     }
@@ -16,4 +16,3 @@ class UserEntity(id: EntityID<Long>) : BaseLongIdEntity(id, UserTable) {
     var password by UserTable.password
     var lastLoginAt by UserTable.lastLoginAt
 }
-

spring-boot-demo/src/main/java/moe/bit/ignotusdemo/model/table/UserTable.kt

@@ -1,11 +1,11 @@
 package moe.bit.ignotusdemo.model.table
 
-import com.tairitsu.ignotus.database.exposed.model.table.BaseLongIdTable
+import com.tairitsu.ignotus.database.exposed.model.table.BaseLongIdWithUUIDTable
 import org.jetbrains.exposed.sql.Column
 import org.jetbrains.exposed.sql.javatime.datetime
 import java.time.LocalDateTime
 
-object UserTable : BaseLongIdTable("users") {
+object UserTable : BaseLongIdWithUUIDTable("users") {
     val username: Column<String> = varchar("username", 256)
     val password: Column<String> = varchar("password", 256)
     val lastLoginAt: Column<LocalDateTime?> = datetime("last_login_at").nullable()

spring-boot-demo/src/main/java/moe/bit/ignotusdemo/model/vo/UserVo.kt

@@ -14,7 +14,7 @@ class UserVo : BaseResponse {
     var updatedAt: LocalDateTime? = null
 
     constructor(userEntity: UserEntity) {
-        this.id = userEntity.id.toString()
+        this.id = userEntity.uuid
         this.username = userEntity.username
         this.createdAt = userEntity.createdAt
         this.updatedAt = userEntity.updatedAt

support/src/main/java/com/tairitsu/ignotus/support/util/Miscellaneous.kt

@@ -3,9 +3,15 @@ package com.tairitsu.ignotus.support.util
 import java.util.*
 
 object UUIDUtils {
+    /**
+     * 创建一个去除横杠的 UUID。
+     */
     @JvmStatic
     fun createModelId(): String = UUID.randomUUID().toString().replace("-", "")
 
+    /**
+     * 创建一个起始字符不为数字的去横杠的 UUID。
+     */
     @JvmStatic
     fun createNoLeadingDigitId(): String {
         var ret = createModelId()