#33 [feat] : 유저 거래 로그 엔터티 & 레포지토리 추가

backend/src/main/java/org/dgu/backend/domain/UserTradingLog.java

@@ -0,0 +1,50 @@
+package org.dgu.backend.domain;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.dgu.backend.common.BaseEntity;
+
+import java.math.BigDecimal;
+
+@Entity
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@Getter
+@Table(name = "users_trading_logs")
+public class UserTradingLog extends BaseEntity {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "trading_logs_id")
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "users_id", foreignKey = @ForeignKey(name = "users_trading_logs_fk_portfolios_id"))
+    private User user;
+
+    @Column(name = "type", nullable = false)
+    private String type;
+
+    @Column(name = "capital", nullable = false)
+    private Long capital;
+
+    @Column(name = "coin", nullable = false, precision = 30, scale = 15)
+    private BigDecimal coin;
+
+    @Column(name = "coin_price", nullable = false)
+    private Double coinPrice;
+
+    @Column(name = "rate", nullable = false)
+    private Double rate;
+
+    @Builder
+    public UserTradingLog(User user, String type, Long capital, BigDecimal coin, Double coinPrice, Double rate){
+        this.user = user;
+        this.type = type;
+        this.capital = capital;
+        this.coin = coin;
+        this.coinPrice = coinPrice;
+        this.rate = rate;
+    }
+}

backend/src/main/java/org/dgu/backend/repository/UserTradingLogRepository.java

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+package org.dgu.backend.repository;
+
+import io.lettuce.core.dynamic.annotation.Param;
+import org.dgu.backend.domain.User;
+import org.dgu.backend.domain.UserTradingLog;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+
+import java.util.List;
+
+public interface UserTradingLogRepository extends JpaRepository<UserTradingLog,Long> {
+    @Query("SELECT utl FROM UserTradingLog utl WHERE utl.user = :user " +
+            "AND utl.createdAt > (SELECT MAX(utl2.createdAt) FROM UserTradingLog utl2 WHERE utl2.user = :user AND utl2.type = 'SELL')")
+    List<UserTradingLog> findRecentLogsAfterLastSell(@Param("user") User user);
+}