fix: decode CasbinRule (#49)

houxul · web-flow · commit 293a343800d4 · 2022-08-12T20:57:15.000+08:00
When a field does not exist in the mongodb document, CasbinRule uses the last value, expecting the field to be empty
diff --git a/adapter.go b/adapter.go
@@ -227,7 +227,6 @@ func (a *adapter) LoadFilteredPolicy(model model.Model, filter interface{}) erro
 	} else {
 		a.filtered = true
 	}
-	line := CasbinRule{}
 
 	ctx, cancel := context.WithTimeout(context.TODO(), a.timeout)
 	defer cancel()
@@ -238,6 +237,7 @@ func (a *adapter) LoadFilteredPolicy(model model.Model, filter interface{}) erro
 	}
 
 	for cursor.Next(ctx) {
+		line := CasbinRule{}
 		err := cursor.Decode(&line)
 		if err != nil {
 			return err

Original file line number	Diff line number	Diff line change
`@@ -227,7 +227,6 @@ func (a *adapter) LoadFilteredPolicy(model model.Model, filter interface{}) erro`
`227`	`227`	`} else {`
`228`	`228`	`a.filtered = true`
`229`	`229`	`}`
`230`		`- line := CasbinRule{}`
`231`	`230`
`232`	`231`	`ctx, cancel := context.WithTimeout(context.TODO(), a.timeout)`
`233`	`232`	`defer cancel()`
`@@ -238,6 +237,7 @@ func (a *adapter) LoadFilteredPolicy(model model.Model, filter interface{}) erro`
`238`	`237`	`}`
`239`	`238`
`240`	`239`	`for cursor.Next(ctx) {`
	`240`	`+ line := CasbinRule{}`
`241`	`241`	`err := cursor.Decode(&line)`
`242`	`242`	`if err != nil {`
`243`	`243`	`return err`