feat: add calibre, fire rate, armour damage, and body damage fields to Firearm model and update related response and migration scripts

src/main/java/com/onixbyte/deltaforceguide/domain/dto/FirearmResponse.java

@@ -8,6 +8,10 @@ public record FirearmResponse(
         String name,
         FirearmType type,
         String level,
+        String calibre,
+        Integer fireRate,
+        Integer armourDamage,
+        Integer bodyDamage,
         String review
 ) {
     public static FirearmResponse from(Firearm firearm) {
@@ -16,6 +20,10 @@ public record FirearmResponse(
                 firearm.getName(),
                 firearm.getType(),
                 firearm.getLevel(),
+                firearm.getCalibre(),
+                firearm.getFireRate(),
+                firearm.getArmourDamage(),
+                firearm.getBodyDamage(),
                 firearm.getReview()
         );
     }

src/main/java/com/onixbyte/deltaforceguide/domain/entity/Firearm.java

@@ -36,6 +36,18 @@ public class Firearm {
     @Column(name = "review", columnDefinition = "TEXT")
     private String review;
 
+    @Column(name = "calibre")
+    private String calibre;
+
+    @Column(name = "fire_rate")
+    private Integer fireRate;
+
+    @Column(name = "armour_damage")
+    private Integer armourDamage;
+
+    @Column(name = "body_damage")
+    private Integer bodyDamage;
+
     @OneToMany(mappedBy = "firearm", cascade = CascadeType.ALL, orphanRemoval = true)
     private List<Modification> modifications = new ArrayList<>();
 
@@ -79,6 +91,38 @@ public class Firearm {
         this.review = review;
     }
 
+    public String getCalibre() {
+        return calibre;
+    }
+
+    public void setCalibre(String calibre) {
+        this.calibre = calibre;
+    }
+
+    public Integer getFireRate() {
+        return fireRate;
+    }
+
+    public void setFireRate(Integer fireRate) {
+        this.fireRate = fireRate;
+    }
+
+    public Integer getArmourDamage() {
+        return armourDamage;
+    }
+
+    public void setArmourDamage(Integer armourDamage) {
+        this.armourDamage = armourDamage;
+    }
+
+    public Integer getBodyDamage() {
+        return bodyDamage;
+    }
+
+    public void setBodyDamage(Integer bodyDamage) {
+        this.bodyDamage = bodyDamage;
+    }
+
     public List<Modification> getModifications() {
         return modifications;
     }

src/main/resources/db/migration/V3__bullet_and_damages.sql

@@ -0,0 +1,60 @@
+-- 创建新表
+CREATE TABLE firearm_new
+(
+    id            BIGSERIAL   NOT NULL,
+    name          VARCHAR(64) NOT NULL,
+    type          INTEGER     NOT NULL,
+    level         VARCHAR(10) NOT NULL,
+    calibre       VARCHAR(20) NOT NULL,
+    fire_rate     INTEGER     NOT NULL,
+    armour_damage INTEGER     NOT NULL,
+    body_damage   INTEGER     NOT NULL,
+    review        TEXT        NULL,
+    CONSTRAINT firearm_new_pkey PRIMARY KEY (id)
+);
+
+-- 迁移数据
+INSERT INTO firearm_new(id, name, type, level, calibre, fire_rate, armour_damage, body_damage,
+                        review)
+SELECT id,
+       name,
+       type,
+       level,
+       calibre,
+       0,
+       armour_damage,
+       body_damage,
+       review
+FROM firearm;
+
+-- 处理外键（关键步骤）
+-- 先删除指向旧表的外键约束
+ALTER TABLE modification
+    DROP CONSTRAINT fk_modification_firearm;
+
+-- 重命名旧表和索引
+ALTER TABLE firearm
+    RENAME TO firearm_legacy;
+ALTER INDEX firearm_pkey RENAME TO firearm_legacy_pkey;
+
+-- 重命名新表和索引
+ALTER TABLE firearm_new
+    RENAME TO firearm;
+ALTER INDEX firearm_new_pkey RENAME TO firearm_pkey;
+
+-- 重新建立外键，指向新的 firearm 表
+ALTER TABLE modification
+    ADD CONSTRAINT fk_modification_firearm
+        FOREIGN KEY (firearm_id) REFERENCES firearm (id);
+
+-- 序列所有权与名称修正
+ALTER SEQUENCE firearm_id_seq RENAME TO firearm_legacy_id_seq;
+ALTER SEQUENCE firearm_new_id_seq RENAME TO firearm_id_seq;
+ALTER SEQUENCE firearm_id_seq OWNED BY firearm.id;
+
+-- 更新序列计数器
+SELECT setval('firearm_id_seq', coalesce(max(id), 1))
+FROM firearm;
+
+-- 删除旧表
+DROP TABLE IF EXISTS firearm_legacy CASCADE;