feat: 打通采购申请与入库的按单入库链路

后端变更:
- PurchaseRequest 新增 base_id 硬关联 MaterialBase，StockBuy 新增 request_id 关联采购单
- handle_inbound 支持 request_id 入参，入库后自动反写采购单状态为已完成
- 新增 get_approved_requests 接口，返回已审批未入库采购单列表（含物料信息+历史数据回退匹配）
- create_purchase_request 新增 name+spec_model 自动匹配 MaterialBase
- 新增 SQL 和 Alembic 数据库迁移脚本

前端变更:
- 入库表单新增"从采购单导入"弹窗，支持搜索/选中已审批采购单并一键填充物料和商务信息
- 单价/总价交叉推算，缺项自动补全
- 选中行蓝色高亮+点击整行选中，行级交互优化

inventory-backend/app/api/v1/purchase.py

@@ -208,7 +208,30 @@ def auto_fill_purchase():
 
 
 # --------------------------------------------------------
-# 7. 物料基础信息搜索（分页）
+# 7. 已审批且未入库的采购单列表（供库管按单入库使用）
+# GET /api/v1/purchase/approved-unstocked?page=1&keyword=xxx
+# --------------------------------------------------------
+@purchase_bp.route('/approved-unstocked', methods=['GET'])
+@jwt_required()
+def get_approved_unstocked_requests():
+    """获取已审批通过且未入库的采购申请列表"""
+    try:
+        page = int(request.args.get('page', 1))
+        per_page = int(request.args.get('limit', 20))
+        keyword = request.args.get('keyword', '').strip() or None
+
+        result = PurchaseService.get_approved_requests(
+            page=page, per_page=per_page, keyword=keyword
+        )
+
+        return jsonify({'code': 200, 'msg': '获取成功', 'data': result}), 200
+    except Exception as e:
+        traceback.print_exc()
+        return jsonify({'code': 500, 'msg': f'获取失败: {str(e)}'}), 500
+
+
+# --------------------------------------------------------
+# 8. 物料基础信息搜索（分页）
 # GET /api/v1/purchase/search-material?keyword=xxx&page=1
 # --------------------------------------------------------
 @purchase_bp.route('/search-material', methods=['GET'])

inventory-backend/app/models/inbound/buy.py

@@ -4,6 +4,7 @@ from pgvector.sqlalchemy import Vector
 import json
 # 显式导入 MaterialBase 以防 relationship 找不到引用
 from app.models.base import MaterialBase
+from app.models.purchase import PurchaseRequest
 
 
 class StockBuy(db.Model):
@@ -15,6 +16,8 @@ class StockBuy(db.Model):
 
     id = db.Column(db.Integer, primary_key=True)
     base_id = db.Column(db.Integer, db.ForeignKey('material_base.id'), nullable=False, index=True)  # ★ 批量 IN 查询高频列
+    # [新增] 关联采购申请单，打通"按单入库"链路
+    request_id = db.Column(db.Integer, db.ForeignKey('purchase_request.id'), index=True, comment='关联采购申请单ID')
 
     # 身份标识
     sku = db.Column(db.String(100), index=True)      # ★ 条码/SKU 快速定位
@@ -61,6 +64,7 @@ class StockBuy(db.Model):
 
     # 关系定义
     base = db.relationship('MaterialBase', back_populates='stock_buys')
+    purchase_request = db.relationship('PurchaseRequest', back_populates='stock_buys')
 
     def to_dict(self):
         # 辅助解析函数
@@ -77,6 +81,9 @@ class StockBuy(db.Model):
         return {
             'id': self.id,
             'base_id': self.base_id,
+            'request_id': self.request_id,
+            # [新增] 采购申请单号（便于前端展示）
+            'request_no': self.purchase_request.request_no if self.purchase_request else '',
 
             # [修改] 增加公司名称
             'company_name': self.base.company_name if self.base else '',

inventory-backend/app/models/purchase.py

@@ -11,6 +11,8 @@ class PurchaseRequest(db.Model):
 
     id = db.Column(db.Integer, primary_key=True)
     request_no = db.Column(db.String(100), unique=True, nullable=False, index=True)
+    # [新增] 硬关联基础物料表，打通"按单入库"链路
+    base_id = db.Column(db.Integer, db.ForeignKey('material_base.id'), index=True, comment='关联基础物料ID')
     name = db.Column(db.String(255), nullable=False, comment='采购名称')
     spec_model = db.Column(db.String(255), comment='规格型号')
     quantity = db.Column(db.Numeric(19, 4), nullable=False, comment='采购数量')
@@ -23,6 +25,8 @@ class PurchaseRequest(db.Model):
     status = db.Column(db.Integer, default=0, nullable=False)
     requester_id = db.Column(db.Integer, nullable=False, index=True)
     approver_id = db.Column(db.Integer, index=True)
+    # [新增] 反向关联：该采购申请对应的入库记录
+    stock_buys = db.relationship('StockBuy', back_populates='purchase_request', lazy='dynamic')
     approved_at = db.Column(db.DateTime)
     reject_reason = db.Column(db.Text)
     created_at = db.Column(db.DateTime, default=beijing_time, nullable=False)
@@ -64,6 +68,7 @@ class PurchaseRequest(db.Model):
         return {
             'id': self.id,
             'request_no': self.request_no,
+            'base_id': self.base_id,
             'name': self.name,
             'spec_model': self.spec_model or '',
             'quantity': float(self.quantity) if self.quantity else 0,

inventory-backend/app/services/inbound/buy_service.py

@@ -165,6 +165,9 @@ class BuyInboundService:
             generated_sku = str(next_global_id).zfill(10) if next_global_id else datetime.now().strftime('%Y%m%d%H%M%S')
             final_barcode = data.get('barcode') or generated_sku
 
+            # [新增] 按单入库：关联采购申请单
+            request_id = data.get('request_id')
+
             new_stock = StockBuy(
                 base_id=material.id, global_print_id=next_global_id, sku=generated_sku, barcode=final_barcode,
                 in_date=in_date_val, serial_number=data.get('serial_number'), batch_number=data.get('batch_number'),
@@ -172,6 +175,9 @@ class BuyInboundService:
                 inspection_status=data.get('inspection_status', '未检'),
                 warehouse_location=data.get('warehouse_location'),
 
+                # [新增] 按单入库关联
+                request_id=request_id,
+
                 # 价格信息
                 pre_tax_unit_price=u_price,
                 post_tax_unit_price=post_tax_price,
@@ -189,6 +195,15 @@ class BuyInboundService:
             db.session.add(new_stock)
             db.session.flush()  # 获取 new_stock.id
 
+            # [新增] 按单入库：反写采购申请单状态为"已完成"
+            if request_id:
+                from app.models.purchase import PurchaseRequest
+                purchase_req = db.session.get(PurchaseRequest, request_id)
+                if purchase_req:
+                    if purchase_req.status != 1:
+                        raise ValueError(f"采购单【{purchase_req.request_no}】当前状态不允许入库，请确认审批状态")
+                    purchase_req.status = 3  # 3 = 已完成/已入库
+
             # 先提交主事务（入库单必须落盘），图片向量异步后台提取
             db.session.commit()
 

inventory-backend/app/services/purchase_service.py

@@ -45,7 +45,7 @@ class PurchaseService:
         """
         创建采购申请
         data 包含: name, spec_model, quantity, purchase_date, supplier_link, remark, images,
-                  unit_price, total_price, approver_id
+                  unit_price, total_price, approver_id, base_id (可选)
         """
         request_no = PurchaseService.generate_request_no()
 
@@ -55,8 +55,21 @@ class PurchaseService:
         elif isinstance(purchase_date, datetime):
             purchase_date = purchase_date.date()
 
+        # [新增] 自动匹配/关联基础物料
+        base_id = data.get('base_id')
+        if not base_id and data.get('name'):
+            # 尝试通过 name + spec_model 精确匹配 MaterialBase
+            material = MaterialBase.query.filter(
+                MaterialBase.name == data['name'],
+                MaterialBase.spec_model == data.get('spec_model', ''),
+                MaterialBase.is_enabled == True
+            ).first()
+            if material:
+                base_id = material.id
+
         purchase = PurchaseRequest(
             request_no=request_no,
+            base_id=base_id,       # [新增]
             name=data['name'],
             spec_model=data.get('spec_model', ''),
             quantity=float(data['quantity']),
@@ -138,6 +151,91 @@ class PurchaseService:
         purchase = db.session.get(PurchaseRequest, purchase_id)
         return purchase.to_dict() if purchase else None
 
+    @staticmethod
+    def get_approved_requests(page=1, per_page=20, keyword=None):
+        """
+        获取已审批通过且未入库的采购申请列表（专供库管按单入库使用）
+
+        筛选条件:
+          - status == 1（已审批通过）
+          - 尚未被任何 StockBuy 关联（request_id 未被引用）
+
+        返回字段包含: 采购申请信息 + MaterialBase 基础物料信息
+        """
+        from app.models.inbound.buy import StockBuy
+
+        # 子查询：所有已被入库引用的 request_id（去重）
+        stocked_ids = db.session.query(StockBuy.request_id).filter(
+            StockBuy.request_id.isnot(None)
+        ).distinct().subquery()
+
+        # 主查询：已通过 且 不在已入库集合中
+        query = db.session.query(PurchaseRequest).filter(
+            PurchaseRequest.status == 1
+        ).filter(
+            ~PurchaseRequest.id.in_(stocked_ids)
+        )
+
+        # 可选关键词搜索：采购单号 / 名称 / 规格
+        if keyword:
+            k = f'%{keyword.strip()}%'
+            query = query.filter(
+                PurchaseRequest.request_no.ilike(k) |
+                PurchaseRequest.name.ilike(k) |
+                PurchaseRequest.spec_model.ilike(k)
+            )
+
+        query = query.order_by(PurchaseRequest.approved_at.desc().nullslast(),
+                               PurchaseRequest.created_at.desc())
+
+        pagination = query.paginate(page=page, per_page=per_page, error_out=False)
+
+        items = []
+        for p in pagination.items:
+            item = p.to_dict()
+            material = None
+
+            # 附加物料基础信息
+            if p.base_id:
+                # 优先走 base_id 硬关联
+                material = db.session.get(MaterialBase, p.base_id)
+
+            # 回退匹配：历史采购单没有 base_id，通过 name + spec_model 模糊匹配
+            if not material and p.name:
+                material = MaterialBase.query.filter(
+                    MaterialBase.name == p.name,
+                    MaterialBase.spec_model == (p.spec_model or ''),
+                    MaterialBase.is_enabled == True
+                ).first()
+                # 如果精确匹配失败，仅按 name 模糊匹配（取最新一条）
+                if not material:
+                    material = MaterialBase.query.filter(
+                        MaterialBase.name.ilike(f'%{p.name}%'),
+                        MaterialBase.is_enabled == True
+                    ).order_by(MaterialBase.id.desc()).first()
+
+            if material:
+                item['material'] = {
+                    'id': material.id,
+                    'company_name': material.company_name or '',
+                    'name': material.name,
+                    'spec_model': material.spec_model or '',
+                    'category': material.category or '',
+                    'unit': material.unit or '',
+                    'type': material.material_type or '',
+                    'is_inspection_required': bool(material.is_inspection_required),
+                }
+            else:
+                item['material'] = None
+            items.append(item)
+
+        return {
+            'items': items,
+            'total': pagination.total,
+            'pages': pagination.pages,
+            'current_page': page
+        }
+
     @staticmethod
     def search_base_material(keyword: str, page: int = 1, limit: int = 20):
         """

inventory-backend/migrations/versions/a1b2c3d4e5f6_add_purchase_stockbuy_link.py

@@ -0,0 +1,79 @@
+"""打通采购申请与采购入库的按单入库链路
+
+Revision ID: a1b2c3d4e5f6
+Revises: None (或填当前最新 revision)
+Create Date: 2026-07-14
+
+变更内容:
+  1. purchase_request 表新增 base_id (FK → material_base.id)
+  2. stock_buy 表新增 request_id (FK → purchase_request.id)
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'a1b2c3d4e5f6'
+down_revision = None   # ← 替换为当前最新 revision ID
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ============================================================
+    # 1. purchase_request 新增 base_id
+    # ============================================================
+    with op.batch_alter_table('purchase_request', schema=None) as batch_op:
+        batch_op.add_column(
+            sa.Column('base_id', sa.Integer(), nullable=True,
+                      comment='关联基础物料ID')
+        )
+        batch_op.create_foreign_key(
+            'fk_purchase_request_base_id',
+            'material_base',
+            ['base_id'],
+            ['id'],
+            ondelete='SET NULL'
+        )
+        batch_op.create_index(
+            'ix_purchase_request_base_id',
+            ['base_id']
+        )
+
+    # ============================================================
+    # 2. stock_buy 新增 request_id
+    # ============================================================
+    with op.batch_alter_table('stock_buy', schema=None) as batch_op:
+        batch_op.add_column(
+            sa.Column('request_id', sa.Integer(), nullable=True,
+                      comment='关联采购申请单ID')
+        )
+        batch_op.create_foreign_key(
+            'fk_stock_buy_request_id',
+            'purchase_request',
+            ['request_id'],
+            ['id'],
+            ondelete='SET NULL'
+        )
+        batch_op.create_index(
+            'ix_stock_buy_request_id',
+            ['request_id']
+        )
+
+
+def downgrade():
+    # ============================================================
+    # 回滚：stock_buy 删除 request_id
+    # ============================================================
+    with op.batch_alter_table('stock_buy', schema=None) as batch_op:
+        batch_op.drop_constraint('fk_stock_buy_request_id', type_='foreignkey')
+        batch_op.drop_index('ix_stock_buy_request_id')
+        batch_op.drop_column('request_id')
+
+    # ============================================================
+    # 回滚：purchase_request 删除 base_id
+    # ============================================================
+    with op.batch_alter_table('purchase_request', schema=None) as batch_op:
+        batch_op.drop_constraint('fk_purchase_request_base_id', type_='foreignkey')
+        batch_op.drop_index('ix_purchase_request_base_id')
+        batch_op.drop_column('base_id')

inventory-backend/migrations_add_purchase_stockbuy_link.sql

@@ -0,0 +1,93 @@
+-- ============================================================
+-- migrations_add_purchase_stockbuy_link.sql
+-- 打通「采购申请」与「采购入库」的按单入库链路
+--
+-- 变更内容:
+--   1. purchase_request 表新增 base_id 列（FK → material_base.id）
+--   2. stock_buy 表新增 request_id 列（FK → purchase_request.id）
+--
+-- 执行方式（任选一种）:
+--   psql -h <host> -U postgres -d inventory_system -f migrations_add_purchase_stockbuy_link.sql
+--   或在 pgAdmin / Navicat / DBeaver 中打开执行
+-- ============================================================
+
+BEGIN;
+
+-- ============================================================
+-- 1. purchase_request 新增 base_id
+--    硬关联基础物料表，使采购申请能精确锁定物料
+-- ============================================================
+ALTER TABLE purchase_request
+    ADD COLUMN IF NOT EXISTS base_id INTEGER;
+
+-- 添加外键约束（如果列已存在但无约束，会补充）
+DO $$
+BEGIN
+    IF NOT EXISTS (
+        SELECT 1 FROM information_schema.table_constraints
+        WHERE constraint_name = 'fk_purchase_request_base_id'
+          AND table_name = 'purchase_request'
+    ) THEN
+        ALTER TABLE purchase_request
+            ADD CONSTRAINT fk_purchase_request_base_id
+            FOREIGN KEY (base_id) REFERENCES material_base(id)
+            ON DELETE SET NULL;
+    END IF;
+END;
+$$;
+
+-- 为 base_id 添加索引（支持按物料筛选采购申请）
+CREATE INDEX IF NOT EXISTS ix_purchase_request_base_id
+    ON purchase_request (base_id);
+
+COMMENT ON COLUMN purchase_request.base_id IS '关联基础物料ID';
+
+
+-- ============================================================
+-- 2. stock_buy 新增 request_id
+--    关联采购申请单，使入库记录可追溯到来源采购单
+-- ============================================================
+ALTER TABLE stock_buy
+    ADD COLUMN IF NOT EXISTS request_id INTEGER;
+
+-- 添加外键约束
+DO $$
+BEGIN
+    IF NOT EXISTS (
+        SELECT 1 FROM information_schema.table_constraints
+        WHERE constraint_name = 'fk_stock_buy_request_id'
+          AND table_name = 'stock_buy'
+    ) THEN
+        ALTER TABLE stock_buy
+            ADD CONSTRAINT fk_stock_buy_request_id
+            FOREIGN KEY (request_id) REFERENCES purchase_request(id)
+            ON DELETE SET NULL;
+    END IF;
+END;
+$$;
+
+-- 为 request_id 添加索引（支持"按单查入库"的追溯查询）
+CREATE INDEX IF NOT EXISTS ix_stock_buy_request_id
+    ON stock_buy (request_id);
+
+COMMENT ON COLUMN stock_buy.request_id IS '关联采购申请单ID';
+
+
+-- ============================================================
+-- 3. 验证结果
+-- ============================================================
+SELECT
+    column_name,
+    data_type,
+    is_nullable,
+    pg_catalog.col_description(
+        (SELECT c.oid FROM pg_catalog.pg_class c
+         WHERE c.relname = table_name),
+        ordinal_position
+    ) AS comment
+FROM information_schema.columns
+WHERE table_name IN ('purchase_request', 'stock_buy')
+  AND column_name IN ('base_id', 'request_id')
+ORDER BY table_name, column_name;
+
+COMMIT;

inventory-web/src/api/purchase.ts

@@ -3,6 +3,7 @@ import request from '@/utils/request'
 export interface PurchaseItem {
   id?: number
   request_no?: string
+  base_id?: number
   name: string
   spec_model?: string
   quantity: number
@@ -22,6 +23,17 @@ export interface PurchaseItem {
   reject_reason?: string
   created_at?: string
   updated_at?: string
+  // [新增] 关联物料基础信息（已审批未入库列表返回）
+  material?: {
+    id: number
+    company_name: string
+    name: string
+    spec_model: string
+    category: string
+    unit: string
+    type: string
+    is_inspection_required: boolean
+  } | null
 }
 
 export interface Approver {
@@ -98,3 +110,16 @@ export function searchMaterialPurchase(keyword: string, page: number = 1) {
     params: { keyword, page }
   })
 }
+
+// [新增] 获取已审批通过且未入库的采购单列表（供库管按单入库使用）
+export function getApprovedUnstockedRequests(params: {
+  page?: number
+  limit?: number
+  keyword?: string
+}) {
+  return request({
+    url: '/purchase/approved-unstocked',
+    method: 'get',
+    params
+  })
+}

inventory-web/src/views/stock/inbound/buy.vue

@@ -280,6 +280,18 @@
                 <el-icon class="icon"><Box/></el-icon>
                 <span>1. 基础信息</span>
 
+                <!-- [新增] 从采购单导入按钮（仅新增模式显示） -->
+                <el-button
+                  v-if="dialogStatus === 'create'"
+                  type="success"
+                  plain
+                  size="small"
+                  style="margin-left: 15px;"
+                  @click="openPurchaseImport"
+                >
+                  <el-icon><Download /></el-icon> 从采购单导入
+                </el-button>
+
                 <el-link
                   v-if="form.base_id"
                   type="primary"
@@ -292,6 +304,15 @@
               </div>
               <span class="sub-title" v-if="dialogStatus === 'create'"> (请先搜索锁定物料)</span>
             </div>
+
+            <!-- [新增] 已关联采购单提示 -->
+            <div v-if="form.request_id" style="padding: 8px 20px; background: #f0f9eb; border-bottom: 1px solid #c2e7b0; display: flex; align-items: center; gap: 8px;">
+              <el-tag type="success" effect="dark" size="small">按单入库</el-tag>
+              <span style="font-size: 13px; color: #67C23A;">
+                已关联采购申请单，入库后将自动标记为「已完成」
+              </span>
+            </div>
+
             <div class="card-content">
               <el-row :gutter="24" v-if="dialogStatus === 'create'" style="margin-bottom: 20px;">
                 <el-col :span="12">
@@ -649,6 +670,89 @@
       />
     </el-dialog>
 
+    <!-- [新增] 从采购单导入弹窗 -->
+    <el-dialog
+      v-model="purchaseImportVisible"
+      title="从采购单导入"
+      width="900px"
+      destroy-on-close
+      :close-on-click-modal="false"
+    >
+      <div style="margin-bottom: 15px;">
+        <el-input
+          v-model="purchaseImportKeyword"
+          placeholder="搜索采购单号 / 名称 / 规格..."
+          clearable
+          style="width: 300px;"
+          @keyup.enter="fetchPurchaseImportList"
+          @clear="fetchPurchaseImportList"
+        >
+          <template #prefix><el-icon><Search /></el-icon></template>
+        </el-input>
+        <el-button type="primary" style="margin-left: 10px;" @click="fetchPurchaseImportList">搜索</el-button>
+      </div>
+
+      <el-table
+        v-loading="purchaseImportLoading"
+        :data="purchaseImportList"
+        border
+        stripe
+        :row-class-name="getPurchaseRowClassName"
+        @row-click="onPurchaseImportSelect"
+        max-height="400px"
+        style="width: 100%; cursor: pointer;"
+      >
+        <el-table-column prop="request_no" label="采购单号" min-width="200" show-overflow-tooltip />
+        <el-table-column prop="name" label="物品名称" min-width="160" show-overflow-tooltip />
+        <el-table-column prop="spec_model" label="规格型号" min-width="110" show-overflow-tooltip>
+          <template #default="scope">
+            {{ scope.row.spec_model || '-' }}
+          </template>
+        </el-table-column>
+        <el-table-column prop="quantity" label="申请数量" width="85" align="right" />
+        <el-table-column prop="unit_price" label="单价" width="100" align="right">
+          <template #default="scope">
+            {{ scope.row.unit_price ? '¥' + Number(scope.row.unit_price).toFixed(2) : '-' }}
+          </template>
+        </el-table-column>
+        <el-table-column label="物料信息" min-width="160" show-overflow-tooltip>
+          <template #default="scope">
+            <template v-if="scope.row.material">
+              <el-tag size="small" type="info" effect="plain">{{ scope.row.material.company_name }}</el-tag>
+              <span style="margin-left: 4px; font-size: 12px; color: #909399;">{{ scope.row.material.type || '-' }}</span>
+            </template>
+            <span v-else class="text-placeholder">未关联物料</span>
+          </template>
+        </el-table-column>
+        <el-table-column prop="approved_at" label="审批时间" min-width="155" />
+      </el-table>
+
+      <div style="margin-top: 12px; display: flex; justify-content: flex-end;">
+        <el-pagination
+          v-model:current-page="purchaseImportPage"
+          :page-size="20"
+          :total="purchaseImportTotal"
+          layout="total, prev, pager, next"
+          background
+          small
+          @current-change="fetchPurchaseImportList"
+        />
+      </div>
+
+      <template #footer>
+        <div class="dialog-footer">
+          <el-button @click="purchaseImportVisible = false">取消</el-button>
+          <el-button
+            type="primary"
+            :disabled="!purchaseImportSelected"
+            @click="confirmPurchaseImport"
+          >
+            确认导入
+          </el-button>
+        </div>
+      </template>
+    </el-dialog>
+
     <el-dialog v-model="printVisible" title="标签打印预览" width="400px" destroy-on-close append-to-body :close-on-click-modal="false" :close-on-press-escape="false">
       <div style="text-align: center;">
         <div v-loading="printLoading" class="preview-box">
@@ -678,7 +782,7 @@
 
 <script setup lang="ts">
 import {ref, reactive, onMounted, watch, computed} from 'vue'
-import {Plus, Setting, Refresh, Search, Lock, Box, House, InfoFilled, Link, Printer, Camera, Delete, Picture, EditPen} from '@element-plus/icons-vue'
+import {Plus, Setting, Refresh, Search, Lock, Box, House, InfoFilled, Link, Printer, Camera, Delete, Picture, EditPen, Download} from '@element-plus/icons-vue'
 import { useRouter } from 'vue-router'
 const router = useRouter()
 import {ElMessage, ElMessageBox, ElLoading} from 'element-plus'
@@ -698,6 +802,7 @@ import {
   getLocationSuggestions,
   getFilterOptions
 } from '@/api/inbound/buy'
+import { getApprovedUnstockedRequests } from '@/api/purchase'
 import {getLabelPreview, executePrint} from '@/api/common/print'
 import { getWarehouseTree } from '@/api/common/warehouse'
 import { usePasteUpload } from '@/hooks/usePasteUpload'
@@ -864,6 +969,15 @@ const inspection_report_url = ref('')
 // 智能扫码弹窗
 const scannerDialogVisible = ref(false)
 
+// [新增] 从采购单导入弹窗
+const purchaseImportVisible = ref(false)
+const purchaseImportLoading = ref(false)
+const purchaseImportList = ref<any[]>([])
+const purchaseImportTotal = ref(0)
+const purchaseImportPage = ref(1)
+const purchaseImportKeyword = ref('')
+const purchaseImportSelected = ref<any>(null)
+
 // 库位级联选择器数据
 const warehouseOptions = ref<any[]>([])
 
@@ -1062,7 +1176,8 @@ const form = reactive({
   currency: 'CNY', exchange_rate: 1.00,
   supplier_name: '', purchaser: '', purchaser_email: '', source_link: '', detail_link: '',
   arrival_photo: [] as string[], inspection_report: [] as string[],
-  print_copies: 1
+  print_copies: 1,
+  request_id: undefined as number | undefined  // [新增] 关联采购申请单
 })
 
 // ------------------------------------
@@ -1164,16 +1279,7 @@ const onMaterialSelected = async (item: any) => {
   isCurrentMaterialInspectionRequired.value = item.isInspectionRequired || false
   updateInspectionRules()
   checkHistoryAndSetMode(item.id)
-
+  fetchLastLocation(item.id)
-  try {
-    const res = await request.get('/v1/inbound/buy/last-location', { params: { base_id: item.id } })
-    if (res.code === 200 && res.data.location) {
-      form.warehouse_location = res.data.location
-      ElMessage.info(`已自动带入该物料历史库位：【${res.data.location}】，请核对。`)
-    }
-  } catch (e) {
-    console.error('获取历史库位失败', e)
-  }
 }
 
 // 动态更新质检相关校验规则
@@ -1449,7 +1555,8 @@ const handleUpdate = (row: any) => {
     currency: row.currency, exchange_rate: Number(row.exchange_rate),
     supplier_name: row.supplier_name, purchaser: row.purchaser, purchaser_email: row.purchaser_email,
     source_link: row.source_link, detail_link: row.detail_link,
-    arrival_photo: row.arrival_photo || [], inspection_report: row.inspection_report || []
+    arrival_photo: row.arrival_photo || [], inspection_report: row.inspection_report || [],
+    request_id: row.request_id || undefined
   })
   // 计算含税单价
   if (form.unit_price !== undefined && form.unit_price !== null) {
@@ -1663,6 +1770,147 @@ const handleScannerConfirm = (result: string) => {
   ElMessage.success('序列号已提取')
 }
 
+// ==========================================
+// [新增] 从采购单导入逻辑
+// ==========================================
+
+// 打开采购单导入弹窗
+const openPurchaseImport = () => {
+  purchaseImportSelected.value = null
+  purchaseImportKeyword.value = ''
+  purchaseImportPage.value = 1
+  purchaseImportVisible.value = true
+  fetchPurchaseImportList()
+}
+
+// 拉取已审批未入库的采购单列表
+const fetchPurchaseImportList = async () => {
+  purchaseImportLoading.value = true
+  try {
+    const res: any = await getApprovedUnstockedRequests({
+      page: purchaseImportPage.value,
+      limit: 20,
+      keyword: purchaseImportKeyword.value || undefined
+    })
+    if (res.code === 200) {
+      purchaseImportList.value = res.data.items || []
+      purchaseImportTotal.value = res.data.total || 0
+    } else {
+      ElMessage.error(res.msg || '获取采购单列表失败')
+    }
+  } catch (e: any) {
+    ElMessage.error(e.response?.data?.msg || '获取采购单列表失败')
+  } finally {
+    purchaseImportLoading.value = false
+  }
+}
+
+// 表格选中行变化（点击已选中行可取消）
+const onPurchaseImportSelect = (row: any) => {
+  if (purchaseImportSelected.value?.id === row.id) {
+    purchaseImportSelected.value = null  // 再次点击取消选中
+  } else {
+    purchaseImportSelected.value = row
+  }
+}
+
+// 选中行高亮样式 class
+const getPurchaseRowClassName = ({ row }: { row: any }) => {
+  return purchaseImportSelected.value?.id === row.id ? 'purchase-row-selected' : ''
+}
+
+// 确认从采购单导入
+const confirmPurchaseImport = () => {
+  const po = purchaseImportSelected.value
+  if (!po) {
+    ElMessage.warning('请先选择一条采购单')
+    return
+  }
+
+  // 1. 从采购单的 material 信息填充基础物料（触发级联填充）
+  if (po.material) {
+    const mat = po.material
+    form.base_id = mat.id
+    form.company_name = mat.company_name
+    form.material_name = mat.name
+    form.spec_model = mat.spec_model
+    form.category = mat.category
+    form.unit = mat.unit
+    form.material_type = mat.type
+    materialNameInput.value = mat.name
+    isCurrentMaterialInspectionRequired.value = mat.is_inspection_required || false
+    updateInspectionRules()
+
+    // 异步加载历史库位和记录模式
+    checkHistoryAndSetMode(mat.id)
+    fetchLastLocation(mat.id)
+
+    materialOptions.value = [{
+      id: mat.id, name: mat.name, spec: mat.spec_model,
+      category: mat.category, company_name: mat.company_name,
+      type: mat.type, unit: mat.unit,
+      isInspectionRequired: mat.is_inspection_required
+    }]
+  } else if (po.base_id) {
+    // 如果 material 为空但 base_id 有值，尝试通过 base_id 查询
+    // 这里简单处理：直接设置 base_id 让用户手动搜索
+    form.base_id = po.base_id
+    ElMessage.info('该采购单未附带物料详情，已填充 base_id，请手动搜索物料确认')
+  } else {
+    ElMessage.warning('该采购单未关联基础物料，无法自动填充物料信息')
+    return
+  }
+
+  // 2. 填充采购商务信息（单价/总价互相推算，缺哪个补哪个）
+  const qty = Number(po.quantity) || 1
+  form.in_quantity = qty
+
+  const hasUnitPrice = po.unit_price !== null && po.unit_price !== undefined && Number(po.unit_price) > 0
+  const hasTotalPrice = po.total_price !== null && po.total_price !== undefined && Number(po.total_price) > 0
+
+  if (hasUnitPrice && hasTotalPrice) {
+    // 两者都有，直接使用
+    form.unit_price = Number(po.unit_price)
+    form.total_price = Number(po.total_price)
+  } else if (hasUnitPrice) {
+    // 只有单价 → 用数量推算总价
+    form.unit_price = Number(po.unit_price)
+    form.total_price = Number((qty * form.unit_price).toFixed(2))
+  } else if (hasTotalPrice) {
+    // 只有总价 → 用数量反推单价
+    form.total_price = Number(po.total_price)
+    form.unit_price = Number((form.total_price / qty).toFixed(4))
+  }
+  // 都没有就都不填
+  if (po.supplier_link) {
+    form.source_link = po.supplier_link
+  }
+
+  // 3. 关联采购单号
+  form.request_id = po.id
+
+  // 4. 触发价格联动
+  updatePrices('pre')
+
+  // 5. 显示关联提示
+  ElMessage.success(`已从采购单【${po.request_no}】导入物料及商务信息，请核对后补充入库详情`)
+
+  purchaseImportVisible.value = false
+}
+
+// 异步获取历史库位（从 onMaterialSelected 中抽离）
+const fetchLastLocation = async (baseId: number) => {
+  try {
+    const res = await request.get('/v1/inbound/buy/last-location', { params: { base_id: baseId } })
+    if (res.code === 200 && res.data.location) {
+      form.warehouse_location = res.data.location
+      ElMessage.info(`已自动带入该物料历史库位：【${res.data.location}】，请核对。`)
+    }
+  } catch (e) {
+    console.error('获取历史库位失败', e)
+  }
+}
+
 const addCondition = () => {
   advancedConditions.value.push({ field: '', operator: '', value: '' })
 }
@@ -1771,7 +2019,8 @@ const resetForm = () => {
     unit_price: undefined, post_tax_unit_price: undefined, total_price: undefined,
     tax_rate: 0,
     currency: 'CNY', exchange_rate: 1.00, supplier_name: '', purchaser: '', purchaser_email: '', source_link: '', detail_link: '', arrival_photo: [], inspection_report: [],
-    print_copies: 1
+    print_copies: 1,
+    request_id: undefined
   })
 }
 const getStatusType = (status: string) => { const map: any = {'在库': 'success', '出库': 'info', '损耗': 'danger'}; return map[status] || 'warning' }
@@ -1974,6 +2223,39 @@ onMounted(() => {
 :deep(.el-input-number .el-input__inner) {
   text-align: left;
 }
+
+/* ==========================================
+   [新增] 采购单导入弹窗 - 选中行高亮样式
+   ========================================== */
+/* 注意: row-class-name 直接加在 <tr> 上，需要用 :deep 穿透 scoped */
+:deep(.purchase-row-selected) {
+  background-color: #ecf5ff !important;
+}
+:deep(.purchase-row-selected) td {
+  background-color: #ecf5ff !important;
+  border-bottom-color: #b3d8ff !important;
+}
+/* 左侧蓝色高亮指示条 */
+:deep(.purchase-row-selected) td:first-child {
+  position: relative;
+}
+:deep(.purchase-row-selected) td:first-child::before {
+  content: '';
+  position: absolute;
+  left: 0;
+  top: 0;
+  bottom: 0;
+  width: 3px;
+  background: #409EFF;
+}
+/* stripe 条纹表选中时保持蓝色，不被交替色覆盖 */
+:deep(.el-table--striped .el-table__body tr.purchase-row-selected td) {
+  background-color: #ecf5ff !important;
+}
+/* hover 时只对普通行做浅灰提示，选中行不变 */
+:deep(.el-table__body tr:not(.purchase-row-selected):hover) td {
+  background-color: #f5f7fa !important;
+}
 </style>
 
 <style>