feat: added print_count api, added merchant setting model, added manual mode setting for purchase order

basic_info/admin.py

@@ -38,6 +38,21 @@ class QuickInputAdmin(admin.ModelAdmin):
     list_filter = ('group',)
 
 
+@admin.register(models.MerchantSetting)
+class MerchantSettingAdmin(admin.ModelAdmin):
+    list_display = (
+        'merchant', 'key', 'value', 
+        'type', 'val_str', 'val_int', 
+        'val_float', 'val_bool', 'description',
+    )
+    list_filter = ('merchant', 'type')
+    search_fields = ('merchant__name', 'key', 'description')
+
+    @admin.display(description='设置值')
+    def _value(self, obj):
+        return obj.value()
+
+
 @admin.register(models.UserProfile)
 class UserProfileAdmin(AdminBase):
     list_display = ('user', 'merchant')

basic_info/migrations/0014_merchantsetting.py

@@ -0,0 +1,30 @@
+# Generated by Django 5.2.7 on 2025-11-28 06:00
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('basic_info', '0013_alter_customer_options'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='MerchantSetting',
+            fields=[
+                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='创建时间')),
+                ('updated_at', models.DateTimeField(auto_now=True, verbose_name='更新时间')),
+                ('id', models.BigAutoField(primary_key=True, serialize=False)),
+                ('key', models.CharField(max_length=100, verbose_name='设置项')),
+                ('val', models.CharField(max_length=100, verbose_name='设置值')),
+                ('description', models.TextField(blank=True, null=True, verbose_name='备注')),
+                ('merchant', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='settings', to='basic_info.merchant', verbose_name='所属商户')),
+            ],
+            options={
+                'verbose_name': '商户设置',
+                'verbose_name_plural': '商户设置',
+            },
+        ),
+    ]

basic_info/migrations/0015_remove_merchantsetting_val_merchantsetting_val_bool_and_more.py

@@ -0,0 +1,37 @@
+# Generated by Django 5.2.7 on 2025-11-28 06:04
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('basic_info', '0014_merchantsetting'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='merchantsetting',
+            name='val',
+        ),
+        migrations.AddField(
+            model_name='merchantsetting',
+            name='val_bool',
+            field=models.BooleanField(blank=True, null=True, verbose_name='设置值(布尔值)'),
+        ),
+        migrations.AddField(
+            model_name='merchantsetting',
+            name='val_float',
+            field=models.FloatField(blank=True, null=True, verbose_name='设置值(浮点数)'),
+        ),
+        migrations.AddField(
+            model_name='merchantsetting',
+            name='val_int',
+            field=models.IntegerField(blank=True, null=True, verbose_name='设置值(整数)'),
+        ),
+        migrations.AddField(
+            model_name='merchantsetting',
+            name='val_str',
+            field=models.CharField(blank=True, max_length=100, null=True, verbose_name='设置值(字符串)'),
+        ),
+    ]

basic_info/migrations/0016_merchantsetting_type.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.7 on 2025-11-28 06:06
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('basic_info', '0015_remove_merchantsetting_val_merchantsetting_val_bool_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='merchantsetting',
+            name='type',
+            field=models.CharField(choices=[('str', '字符串'), ('int', '整数'), ('float', '浮点数'), ('bool', '布尔值')], default='str', max_length=20, verbose_name='设置类型'),
+        ),
+    ]

basic_info/models.py

@@ -452,3 +452,52 @@ class VehicleTransportRecord(ModelBase):
     class Meta:
         verbose_name = '司机车次'
         verbose_name_plural = '司机车次'
+
+
+class MerchantSettingTypeEnum(models.TextChoices):
+    """商户设置类型枚举"""
+    STR = 'str', '字符串'
+    INT = 'int', '整数'
+    FLOAT = 'float', '浮点数'
+    BOOL = 'bool', '布尔值'
+
+
+class MerchantSetting(ModelBase):
+    id = models.BigAutoField(primary_key=True)
+    merchant = models.ForeignKey('Merchant', on_delete=models.PROTECT, related_name='settings', verbose_name='所属商户')
+    key = models.CharField(max_length=100, verbose_name='设置项')
+    type = models.CharField(
+        max_length=20,
+        choices=MerchantSettingTypeEnum.choices,
+        default=MerchantSettingTypeEnum.STR,
+        verbose_name='设置类型',
+    )
+    val_str = models.CharField(max_length=100, null=True, blank=True, verbose_name='设置值(字符串)')
+    val_int = models.IntegerField(null=True, blank=True, verbose_name='设置值(整数)')
+    val_float = models.FloatField(null=True, blank=True, verbose_name='设置值(浮点数)')
+    val_bool = models.BooleanField(null=True, blank=True, verbose_name='设置值(布尔值)')
+    description = models.TextField(blank=True, null=True, verbose_name='备注')
+
+    @property
+    def value(self):
+        if self.type == MerchantSettingTypeEnum.STR:
+            return self.val_str
+        elif self.type == MerchantSettingTypeEnum.INT:
+            return self.val_int
+        elif self.type == MerchantSettingTypeEnum.FLOAT:
+            return self.val_float
+        elif self.type == MerchantSettingTypeEnum.BOOL:
+            return self.val_bool
+        raise ValueError(f'Invalid setting type: {self.type}')
+
+    def __str__(self):
+        return f'{self.merchant.name} - {self.key}'
+
+    class Meta:
+        verbose_name = '商户设置'
+        verbose_name_plural = '商户设置'
+
+
+class MerchantSettingKeyEnum(models.TextChoices):
+    """商户设置项枚举"""
+    AUTO_CREATE_STOCK_CHANGE_TASKS = 'auto_create_stock_change_tasks', '自动创建出入库记录任务'

basic_info/services.py

@@ -73,3 +73,9 @@ class DataVisibilityService:
             return False
 
         return basic_models.WareHouse.objects.filter(id=warehouse_id).filter(merchant=emp.merchant).exists()
+
+
+class MerchantSettingService:
+    @staticmethod
+    def get_setting(merchant: basic_models.Merchant, key: basic_models.MerchantSettingKeyEnum):
+        return basic_models.MerchantSetting.objects.get(merchant=merchant, key=key)