migrate from github

internal/repository/knowledge_base_repo/delete.go

@@ -0,0 +1,32 @@
+package knowledge_base_repo
+
+import (
+	"github.com/XingfenD/yoresee_doc/internal/model"
+	"gorm.io/gorm"
+)
+
+type DeleteKnowledgeBaseOperation struct {
+	repo          *KnowledgeBaseRepository
+	knowledgeBase *model.KnowledgeBase
+	tx            *gorm.DB
+}
+
+func (r *KnowledgeBaseRepository) Delete(knowledgeBase *model.KnowledgeBase) (op *DeleteKnowledgeBaseOperation) {
+	return &DeleteKnowledgeBaseOperation{
+		repo:          r,
+		knowledgeBase: knowledgeBase,
+	}
+}
+
+func (op *DeleteKnowledgeBaseOperation) WithTx(tx *gorm.DB) *DeleteKnowledgeBaseOperation {
+	op.tx = tx
+	return op
+}
+
+func (op *DeleteKnowledgeBaseOperation) Exec() error {
+	if op.tx == nil {
+		op.tx = op.repo.db
+	}
+	err := op.tx.Delete(op.knowledgeBase).Error
+	return err
+}