Add translation support for audio content detail

src/main/kotlin/kr/co/vividnext/sodalive/content/translation/ContentTranslation.kt

@@ -0,0 +1,64 @@
+package kr.co.vividnext.sodalive.content.translation
+
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import kr.co.vividnext.sodalive.common.BaseEntity
+import javax.persistence.AttributeConverter
+import javax.persistence.Column
+import javax.persistence.Convert
+import javax.persistence.Converter
+import javax.persistence.Entity
+import javax.persistence.Table
+import javax.persistence.UniqueConstraint
+
+@Entity
+@Table(
+    uniqueConstraints = [
+        UniqueConstraint(columnNames = ["contentId", "locale"])
+    ]
+)
+class ContentTranslation(
+    val contentId: Long,
+    val locale: String,
+    val translatedTitle: String,
+
+    @Column(columnDefinition = "json")
+    @Convert(converter = ContentTranslationPayloadConverter::class)
+    val renderedPayload: ContentTranslationPayload
+) : BaseEntity()
+
+data class ContentTranslationPayload(
+    val title: String,
+    val detail: String,
+    val tags: String
+)
+
+@Converter(autoApply = false)
+class ContentTranslationPayloadConverter : AttributeConverter<ContentTranslationPayload, String> {
+
+    override fun convertToDatabaseColumn(attribute: ContentTranslationPayload?): String {
+        if (attribute == null) return "{}"
+        return objectMapper.writeValueAsString(attribute)
+    }
+
+    override fun convertToEntityAttribute(dbData: String?): ContentTranslationPayload {
+        if (dbData.isNullOrBlank()) {
+            return ContentTranslationPayload(
+                title = "",
+                detail = "",
+                tags = ""
+            )
+        }
+        return objectMapper.readValue(dbData)
+    }
+
+    companion object {
+        private val objectMapper = jacksonObjectMapper()
+    }
+}
+
+data class TranslatedContent(
+    val title: String?,
+    val detail: String?,
+    val tags: String?
+)

src/main/kotlin/kr/co/vividnext/sodalive/content/translation/ContentTranslationRepository.kt

@@ -0,0 +1,7 @@
+package kr.co.vividnext.sodalive.content.translation
+
+import org.springframework.data.jpa.repository.JpaRepository
+
+interface ContentTranslationRepository : JpaRepository<ContentTranslation, Long> {
+    fun findByContentIdAndLocale(contentId: Long, locale: String): ContentTranslation?
+}