修改提交检测记录路由

hb_server/apps/inm/serializers.py

@@ -1,6 +1,7 @@
 from rest_framework import serializers
 
 from apps.inm.models import FIFO, FIFOItem, IProduct, MaterialBatch, WareHouse,Inventory
+from apps.qm.models import TestRecord, TestRecordItem
 
 from apps.system.serializers import UserSimpleSerializer
 from apps.mtm.serializers import MaterialSimpleSerializer
@@ -119,3 +120,16 @@ class FIFOInPurSerializer(serializers.ModelSerializer):
                     FIFOItem.objects.create(**i)
         return obj
 
+
+
+class InmTestRecordItemCreateSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = TestRecordItem
+        fields = ['form_field', 'field_value', 'is_testok']
+
+class InmTestRecordCreateSerializer(serializers.ModelSerializer):
+    record_data = InmTestRecordItemCreateSerializer(many=True)
+    fifo_item = serializers.PrimaryKeyRelatedField(queryset=FIFOItem.objects.all(), required=True)
+    class Meta:
+        model = TestRecord
+        fields = ['form', 'record_data', 'is_testok', 'fifo_item']

hb_server/apps/inm/urls.py

@@ -9,7 +9,7 @@ router.register('warehouse', WarehouseViewSet, basename='warehouse')
 router.register('inventory', InventoryViewSet, basename='inventory')
 router.register('materialbatch', MaterialBatchViewSet, basename='materialbatch')
 router.register('fifo', FIFOViewSet, basename='fifo'),
-router.register('fifodetail', FIFOItemViewSet, basename='fifodetail')
+router.register('fifoitem', FIFOItemViewSet, basename='fifoitem')
 urlpatterns = [
     path('', include(router.urls)),
 ]

hb_server/apps/inm/views.py

@@ -6,8 +6,9 @@ from rest_framework.viewsets import GenericViewSet, ModelViewSet
 from apps.inm.filters import MbFilterSet
 
 from apps.inm.models import FIFO, FIFOItem, MaterialBatch, WareHouse,Inventory
-from apps.inm.serializers import FIFOItemSerializer, FIFOInPurSerializer, FIFOListSerializer, MaterialBatchQuerySerializer, MaterialBatchSerializer, WareHouseSerializer, WareHouseCreateUpdateSerializer,InventorySerializer
+from apps.inm.serializers import FIFOItemSerializer, FIFOInPurSerializer, FIFOListSerializer, InmTestRecordCreateSerializer, MaterialBatchQuerySerializer, MaterialBatchSerializer, WareHouseSerializer, WareHouseCreateUpdateSerializer,InventorySerializer
 from apps.inm.signals import update_inm
+from apps.qm.models import TestRecordItem
 from apps.system.mixins import CreateUpdateModelAMixin, OptimizationMixin
 from rest_framework.decorators import action
 from rest_framework.response import Response
@@ -81,6 +82,40 @@ class FIFOItemViewSet(ListModelMixin, DestroyModelMixin, GenericViewSet):
             raise APIException('该出入库记录已通过审核, 无法删除')
         return super().perform_destroy(instance)
 
+    @action(methods=['post'], detail=False, perms_map={'post':'*'}, serializer_class=InmTestRecordCreateSerializer)
+    def test(self, request, pk=None):
+        """
+        检测
+        """
+        serializer = InmTestRecordCreateSerializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        vdata = serializer.validated_data
+        record_data = vdata.pop('record_data')
+        if 'is_testok' not in vdata:
+            raise APIException('未填写检测结论')
+        with transaction.atomic():
+            obj = serializer.save(create_by = self.request.user)
+            tris = []
+            for m in record_data: # 保存记录详情
+                form_field = m['form_field']
+                m['field_name'] = form_field.field_name
+                m['field_key'] = form_field.field_key
+                m['field_type'] = form_field.field_type
+                m['field_value'] = m['field_value']
+                m['sort'] = form_field.sort
+                m['need_judge'] = form_field.need_judge
+                m['is_testok'] = m['is_testok'] if 'is_testok' in m else True
+                m['test_record'] = obj
+                tris.append(TestRecordItem(**m))
+            TestRecordItem.objects.bulk_create(tris)
+
+            # 如果检测合格
+            if obj.fifo_item:
+                obj.fifo_item.is_testok = True if obj.is_testok else False
+                obj.fifo_item.is_tested = True
+                obj.fifo_item.save()
+        return Response()
+
 class FIFOViewSet(ListModelMixin, GenericViewSet):
     """
     出入库记录

hb_server/apps/qm/migrations/0008_auto_20211111_1405.py

@@ -0,0 +1,31 @@
+# Generated by Django 3.2.6 on 2021-11-11 06:05
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mtm', '0029_step_type'),
+        ('wpm', '0012_auto_20211111_1056'),
+        ('qm', '0007_alter_testrecorditem_field_type'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='testrecord',
+            name='m_state',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='mtm.material', verbose_name='关联的物料状态'),
+        ),
+        migrations.AddField(
+            model_name='testrecord',
+            name='remark',
+            field=models.TextField(default='', verbose_name='备注'),
+        ),
+        migrations.AddField(
+            model_name='testrecord',
+            name='wproduct',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='wpm.wproduct', verbose_name='关联的动态产品'),
+        ),
+    ]

hb_server/apps/qm/models.py

@@ -49,7 +49,10 @@ class TestRecord(CommonAModel):
     """
     form = models.ForeignKey('mtm.recordform', verbose_name='所用表格', on_delete=models.CASCADE)
     is_testok = models.BooleanField('是否合格', default=True)
+    wproduct = models.ForeignKey('wpm.wproduct', verbose_name='关联的动态产品', on_delete=models.CASCADE, null=True, blank=True)
+    m_state = models.ForeignKey('mtm.material', verbose_name='关联的物料状态', on_delete=models.CASCADE, null=True, blank=True)
     fifo_item = models.ForeignKey('inm.fifoitem', verbose_name='关联的出入库批次', on_delete=models.CASCADE, null=True, blank=True)
+    remark = models.TextField('备注', default='')
 
 
 class TestRecordItem(BaseModel):

hb_server/apps/qm/views.py

@@ -1,7 +1,8 @@
+from rest_framework.mixins import ListModelMixin, RetrieveModelMixin
 from apps.qm.serializers import StandardCreateUpdateSerializer, StandardSerializer, TestItemCreateUpdateSerializer, TestItemSerializer, TestRecordCreateSerializer, TestRecordDetailSerializer, TestRecordListSerializer
 from apps.qm.models import Standard, TestItem, TestRecord, TestRecordItem
 from django.shortcuts import render
-from rest_framework.viewsets import ModelViewSet
+from rest_framework.viewsets import GenericViewSet, ModelViewSet
 from apps.system.mixins import CreateUpdateModelAMixin
 from rest_framework.exceptions import APIException
 from rest_framework.response import Response
@@ -42,7 +43,7 @@ class TestItemViewSet(CreateUpdateModelAMixin, ModelViewSet):
             return TestItemCreateUpdateSerializer
         return TestItemSerializer
 
-class TestRecordViewSet(ModelViewSet):
+class TestRecordViewSet(ListModelMixin, RetrieveModelMixin, GenericViewSet):
     """
     检测记录
     """
@@ -52,41 +53,39 @@ class TestRecordViewSet(ModelViewSet):
     ordering = ['-id']
 
     def get_serializer_class(self):
-        if self.action == 'create':
+        if self.action == 'list':
-            return TestRecordCreateSerializer
-        elif self.action == 'list':
             return TestRecordListSerializer
         elif self.action == 'retrieve':
             return TestRecordDetailSerializer
         return super().get_serializer_class()
 
-    def create(self, request, *args, **kwargs):
+    # def create(self, request, *args, **kwargs):
-        serializer = self.get_serializer(data=request.data)
+    #     serializer = self.get_serializer(data=request.data)
-        serializer.is_valid(raise_exception=True)
+    #     serializer.is_valid(raise_exception=True)
-        vdata = serializer.validated_data
+    #     vdata = serializer.validated_data
-        record_data = vdata.pop('record_data')
+    #     record_data = vdata.pop('record_data')
-        if 'is_testok' not in vdata:
+    #     if 'is_testok' not in vdata:
-            raise APIException('未填写检测结论')
+    #         raise APIException('未填写检测结论')
-        with transaction.atomic():
+    #     with transaction.atomic():
-            obj = serializer.save(create_by = self.request.user)
+    #         obj = serializer.save(create_by = self.request.user)
-            tris = []
+    #         tris = []
-            for m in record_data: # 保存记录详情
+    #         for m in record_data: # 保存记录详情
-                form_field = m['form_field']
+    #             form_field = m['form_field']
-                m['field_name'] = form_field.field_name
+    #             m['field_name'] = form_field.field_name
-                m['field_key'] = form_field.field_key
+    #             m['field_key'] = form_field.field_key
-                m['field_type'] = form_field.field_type
+    #             m['field_type'] = form_field.field_type
-                m['field_value'] = m['field_value']
+    #             m['field_value'] = m['field_value']
-                m['sort'] = form_field.sort
+    #             m['sort'] = form_field.sort
-                m['need_judge'] = form_field.need_judge
+    #             m['need_judge'] = form_field.need_judge
-                m['is_testok'] = m['is_testok'] if 'is_testok' in m else True
+    #             m['is_testok'] = m['is_testok'] if 'is_testok' in m else True
-                m['test_record'] = obj
+    #             m['test_record'] = obj
-                tris.append(TestRecordItem(**m))
+    #             tris.append(TestRecordItem(**m))
-            TestRecordItem.objects.bulk_create(tris)
+    #         TestRecordItem.objects.bulk_create(tris)
 
-            # 如果检测合格
+    #         # 如果检测合格
-            if obj.fifo_item:
+    #         if obj.fifo_item:
-                obj.fifo_item.is_testok = True if obj.is_testok else False
+    #             obj.fifo_item.is_testok = True if obj.is_testok else False
-                obj.fifo_item.is_tested = True
+    #             obj.fifo_item.is_tested = True
-                obj.fifo_item.save()
+    #             obj.fifo_item.save()
 
-        return Response(status=status.HTTP_201_CREATED)
+    #     return Response(status=status.HTTP_201_CREATED)

hb_server/apps/wpm/migrations/0012_auto_20211111_1056.py

@@ -0,0 +1,41 @@
+# Generated by Django 3.2.6 on 2021-11-11 02:56
+
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mtm', '0029_step_type'),
+        ('wpm', '0011_alter_operationrecorditem_operation_record'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='operation',
+            name='use_scrap',
+            field=models.BooleanField(default=False, verbose_name='是否使用的边角料'),
+        ),
+        migrations.AddField(
+            model_name='wproduct',
+            name='pre_pstate',
+            field=models.ForeignKey(blank=True, help_text='已执行完的步骤', null=True, on_delete=django.db.models.deletion.CASCADE, related_name='w_pre_pstate', to='mtm.step', verbose_name='已执行到'),
+        ),
+        migrations.AlterField(
+            model_name='operationmaterial',
+            name='count',
+            field=models.IntegerField(validators=[django.core.validators.MinValueValidator(0)], verbose_name='消耗或产出数量'),
+        ),
+        migrations.AlterField(
+            model_name='wmaterial',
+            name='count',
+            field=models.IntegerField(default=0, validators=[django.core.validators.MinValueValidator(0)], verbose_name='当前数量'),
+        ),
+        migrations.AlterField(
+            model_name='wproduct',
+            name='p_state',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='w_ptate', to='mtm.step', verbose_name='所在步骤'),
+        ),
+    ]

hb_server/apps/wpm/models.py

@@ -7,7 +7,7 @@ from apps.system.models import CommonAModel, CommonBModel, Organization, User, D
 from utils.model import SoftModel, BaseModel
 from simple_history.models import HistoricalRecords
 from apps.mtm.models import Material, Process, RecordFormField, Step, RecordForm
-
+from django.core.validators import MinValueValidator
 class WMaterial(BaseModel):
     """
     车间生产物料
@@ -15,7 +15,7 @@ class WMaterial(BaseModel):
     subproduction_plan = models.ForeignKey(SubProductionPlan, verbose_name='关联子计划', on_delete=models.CASCADE)
     material = models.ForeignKey(Material, verbose_name='关联物料', on_delete=models.CASCADE)
     batch = models.CharField('批次号', max_length=100, null=True, blank=True)
-    count = models.IntegerField('当前数量', default=0)
+    count = models.IntegerField('当前数量', default=0, validators=[MinValueValidator(0)])
 
 class WProduct(CommonAModel):
     """
@@ -31,7 +31,8 @@ class WProduct(CommonAModel):
     )
     number = models.CharField('物品编号', unique=True, null=True, blank=True, max_length=50)
     m_state = models.ForeignKey(Material, verbose_name='所属物料状态', on_delete=models.CASCADE)
-    p_state = models.ForeignKey(Step, verbose_name='所在步骤', on_delete=models.CASCADE, null=True, blank=True)
+    pre_pstate = models.ForeignKey(Step, verbose_name='已执行到', help_text='已执行完的步骤', null=True, blank=True, on_delete=models.CASCADE, related_name='w_pre_pstate')
+    p_state = models.ForeignKey(Step, verbose_name='所在步骤', on_delete=models.CASCADE, null=True, blank=True, related_name='w_ptate')
     act_state = models.IntegerField('进行状态', default=0, choices=act_state_choices)
     is_executed = models.BooleanField('子工序是否已执行', default=False)
     is_hidden = models.BooleanField('是否隐藏', default=False)
@@ -48,11 +49,12 @@ class Operation(CommonAModel):
     wproducts = models.JSONField('关联产品ID列表', default=list, blank=True)
     m_state = models.ForeignKey(Material, verbose_name='操作时的物料状态', on_delete=models.CASCADE, null=True, blank=True)
     p_state = models.ForeignKey(Step, verbose_name='操作步骤', on_delete=models.CASCADE, null=True, blank=True)
+    use_scrap = models.BooleanField('是否使用的边角料', default=False)
     remark = models.CharField('操作备注', max_length=200, null=True, blank=True)
 
 class OperationMaterial(BaseModel):
     """
-    车间生产物料消耗产出表
+    生产操作物料消耗产出表
     """
     type_choices=(
         (1, '消耗'),
@@ -62,7 +64,7 @@ class OperationMaterial(BaseModel):
     operation = models.ForeignKey(Operation, verbose_name='关联的生产操作', on_delete=models.CASCADE)
     wmaterial = models.ForeignKey(WMaterial, verbose_name='关联的车间物料', on_delete=models.CASCADE, null=True, blank=True)
     material = models.ForeignKey(Material, verbose_name='可能产出的副产品', on_delete=models.CASCADE, null=True, blank=True)
-    count = models.IntegerField('消耗或产出数量')
+    count = models.IntegerField('消耗或产出数量', validators=[MinValueValidator(0)])
 
 class OperationRecord(CommonAModel):
     """

hb_server/apps/wpm/serializers.py

@@ -1,4 +1,4 @@
-from rest_framework import serializers
+from rest_framework import serializers, exceptions
 from rest_framework.serializers import ModelSerializer
 from apps.inm.models import FIFO, FIFOItem, MaterialBatch, WareHouse
 from apps.inm.signals import update_inm
@@ -8,6 +8,7 @@ from apps.mtm.serializers import MaterialSimpleSerializer, StepSimpleSerializer
 from apps.pm.models import SubProductionPlan, SubProductionProgress
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
+from apps.qm.models import TestRecord, TestRecordItem
 from apps.system.serializers import UserSimpleSerializer
 from apps.wpm.models import Operation, WMaterial, WProduct, OperationRecord, OperationRecordItem
 from django.db import transaction
@@ -26,16 +27,16 @@ class PickSerializer(serializers.Serializer):
         picks = validated_data.pop('picks')
         sp = validated_data['subproduction_plan']
         if sp.state not in [1,2]:
-            raise serializers.ValidationError('该子计划状态错误')
+            raise exceptions.ValidationError('该子计划状态错误')
         if sp.is_picked:
-            raise serializers.ValidationError('该子计划已领料')
+            raise exceptions.ValidationError('该子计划已领料')
-        for i in picks:
+        # for i in picks:
-            try:
+        #     try:
-                instance = MaterialBatch.objects.get(material=i['material'], batch=i['batch'])
+        #         instance = MaterialBatch.objects.get(material=i['material'], batch=i['batch'])
-                if instance.count < i['pick_count']:
+        #         if instance.count < i['pick_count']:
-                    raise serializers.ValidationError('物料不足')
+        #             raise exceptions.ValidationError('物料不足')
-            except:
+        #     except:
-                raise serializers.ValidationError('物料不存在')
+        #         raise exceptions.ValidationError('物料不存在')
         # 创建出库记录
         with transaction.atomic():
             validated_data['create_by'] = self.context['request'].user
@@ -124,21 +125,21 @@ class OperationInitSerializer(serializers.Serializer):
         
         stepIds=[i['id'] for i in subproduction_plan.steps]
         if step.id not in stepIds:
-            raise serializers.ValidationError('请选择正确的子工序操作')
+            raise exceptions.ValidationError('请选择正确的子工序操作')
         
         if 'wproducts' in data and data['wproducts']:
             if step.type == Step.STEP_TYPE_DIV:
-                raise serializers.ValidationError(_('不可进行此操作'))
+                raise exceptions.ValidationError(_('不可进行此操作'))
             for i in data['wproducts']:
                 if i.is_executed:
-                    raise serializers.ValidationError('不可进行操作')
+                    raise exceptions.ValidationError('不可进行操作')
                 if i.subproduction_plan != subproduction_plan:
-                    raise serializers.ValidationError('半成品所属子计划不一致')
+                    raise exceptions.ValidationError('半成品所属子计划不一致')
                 if i.p_state != step:
-                    raise serializers.ValidationError('半成品所属子工序不一致')
+                    raise exceptions.ValidationError('半成品所属子工序不一致')
         else:
             if step.type != Step.STEP_TYPE_DIV:
-                raise serializers.ValidationError(_('请选择半成品进行操作'))
+                raise exceptions.ValidationError(_('请选择半成品进行操作'))
         return data
 
 
@@ -172,6 +173,19 @@ class OperationSubmitSerializer(serializers.Serializer):
     output = DoOutputSerializer(many=True, required=False)
     forms = OperationRecordSerializer(many=True, required=False)
     remark = serializers.CharField(required=False, label='操作备注', allow_blank=True, allow_null=True)
+    use_scrap = serializers.BooleanField(required=False, default=False)
+
+class WpmTestRecordItemCreateSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = TestRecordItem
+        fields = ['form_field', 'field_value', 'is_testok']
+
+class WpmTestRecordCreateSerializer(serializers.ModelSerializer):
+    record_data = WpmTestRecordItemCreateSerializer(many=True)
+    wproduct = serializers.PrimaryKeyRelatedField(queryset=WProduct.objects.all(), required=True)
+    class Meta:
+        model = TestRecord
+        fields = ['form', 'record_data', 'is_testok', 'wproduct']
     
 
     

hb_server/apps/wpm/views.py

@@ -9,14 +9,16 @@ from apps.mtm.models import Material, RecordForm, Step, SubprodctionMaterial
 from apps.mtm.serializers import RecordFormDetailSerializer
 from apps.pm.models import SubProductionPlan, SubProductionProgress
 from apps.pm.serializers import SubProductionPlanListSerializer, SubProductionPlanUpdateSerializer
+from apps.qm.models import TestRecordItem
 
 from apps.system.mixins import CreateUpdateModelAMixin, OptimizationMixin
 from rest_framework.decorators import action
 from apps.wpm.models import WMaterial, WProduct, Operation, OperationMaterial, OperationRecord, OperationRecordItem
 
-from apps.wpm.serializers import OperationDetailSerializer, OperationListSerializer, PickSerializer, OperationInitSerializer, OperationSubmitSerializer, WMaterialListSerializer, WProductListSerializer
+from apps.wpm.serializers import OperationDetailSerializer, OperationListSerializer, PickSerializer, OperationInitSerializer, OperationSubmitSerializer, WMaterialListSerializer, WProductListSerializer, WpmTestRecordCreateSerializer
 from rest_framework.response import Response
 from django.db import transaction
+from rest_framework import exceptions
 # Create your views here.
 class WPlanViewSet(ListModelMixin, GenericViewSet):
     """
@@ -63,9 +65,40 @@ class WProductViewSet(ListModelMixin, GenericViewSet):
     ordering_fields = ['id']
     ordering = ['id']
 
-    @action(methods=['post'], detail=False, perms_map={'post':'*'}, serializer_class=PickSerializer)
+    @action(methods=['post'], detail=False, perms_map={'post':'*'}, serializer_class=WpmTestRecordCreateSerializer)
-    def test():
+    @transaction.atomic
-        pass
+    def test(self, request, pk=None):
+        """
+        检测
+        """
+        serializer = WpmTestRecordCreateSerializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        vdata = serializer.validated_data
+        record_data = vdata.pop('record_data')
+        wproduct = vdata['wproduct']
+        if wproduct.act_state != WProduct.WPR_ACT_STATE_TOTEST:
+            raise exceptions.APIException('该半成品无需检测')
+        if 'is_testok' not in vdata:
+            raise exceptions.APIException('未填写检测结论')
+    
+        obj = serializer.save(create_by = self.request.user, m_state=vdata['wproduct'].m_state)
+        tris = []
+        for m in record_data: # 保存记录详情
+            form_field = m['form_field']
+            m['field_name'] = form_field.field_name
+            m['field_key'] = form_field.field_key
+            m['field_type'] = form_field.field_type
+            m['field_value'] = m['field_value']
+            m['sort'] = form_field.sort
+            m['need_judge'] = form_field.need_judge
+            m['is_testok'] = m['is_testok'] if 'is_testok' in m else True
+            m['test_record'] = obj
+            tris.append(TestRecordItem(**m))
+        TestRecordItem.objects.bulk_create(tris)
+
+        # 如果检测合格
+            
+        return Response()
 
 class OperationViewSet(ListModelMixin, RetrieveModelMixin, GenericViewSet):
     """
@@ -151,6 +184,7 @@ class DoFormSubmit(CreateAPIView, GenericAPIView):
             action_obj.m_state = vdata['wproducts'][0].m_state
         action_obj.remark = vdata.get('remark', '') # 操作备注
         action_obj.create_by = request.user
+        action_obj.use_scrap = vdata.get('use_scrap', False)
         action_obj.save()
 
         # 保存物料消耗
@@ -207,7 +241,7 @@ class DoFormSubmit(CreateAPIView, GenericAPIView):
             pindex = stepIds.index(vdata['step'].id)
             if pindex + 1 < len(stepIds): # 如果不是最后一步
                 newstep = Step.objects.get(pk=stepIds[pindex+1])
-                wproducts.update(p_state=newstep, is_executed=False)
+                wproducts.update(p_state=newstep, is_executed=False, pre_pstate=vdata['step'])
 
                 # 特殊情况如果是夹层结合
                 if vdata['step'].type == Step.STEP_TYPE_COMB:
@@ -221,9 +255,10 @@ class DoFormSubmit(CreateAPIView, GenericAPIView):
                         parent = data['wproducts']
                     )
 
-            else: # 如果是最后一步, 此时需要转序并更新状态为待检测
+            else: # 如果是最后一步, 此时需要转序并更新状态为待检测, 此时物料状态需变成当前子计划的主产物状态
                 newstep = vdata['step']
-                wproducts.update(p_state=newstep, is_executed=True, act_state=WProduct.WPR_ACT_STATE_TOTEST)
+                wproducts.update(p_state=newstep, is_executed=True, 
+                act_state=WProduct.WPR_ACT_STATE_TOTEST, pre_pstate=newstep, m_state=vdata['subproduction_plan'].main_product)
 
                 # 特殊情况如果是夹层结合
                 if vdata['step'].type == Step.STEP_TYPE_COMB: