Merge pull request '修改art model字段' (#249) from fix_artmodel into develop

Reviewed-on: http://101.201.121.115:3000/leo/LAPP_GAAS_GFrame_BACKEND/pulls/249
Reviewed-by: zhangxin <xin.zhang@le-it.com.cn>

models/base/Article.model.go

@@ -41,7 +41,7 @@ type Article struct {
 	BatchTime            float64       `xorm:"float 'BatchTime'" json:"Article-BatchTime"`
 	QuantityPerHour      float64       `xorm:"float 'QuantityPerHour' not null" json:"Article-QuantityPerHour"`
 	MidBatchQuantity     int           `xorm:"int 'MidBatchQuantity' not null" json:"Article-MidBatchQuantity"`
-	MidBatchTime         grmi.DateTime `xorm:"datetime 'MidBatchTime'" json:"Article-MidBatchTime"`
+	MidBatchTime         grmi.DateTime `xorm:"datetime 'MidBatchTime' not null" json:"Article-MidBatchTime"`
 	EffectiveOpTime      float64       `xorm:"float 'EffectiveOpTime'" json:"Article-EffectiveOpTime"`
 	BatchingMethod       int           `xorm:"int 'BatchingMethod' not null" json:"Article-BatchingMethod"`
 	DeliveryBuffer       float64       `xorm:"float 'DeliveryBuffer'" json:"Article-DeliveryBuffer"`