init

app/rules/not_exists.go

@@ -0,0 +1,54 @@
+package rules
+
+import (
+	"github.com/goravel/framework/contracts/validation"
+	"github.com/goravel/framework/facades"
+)
+
+/**
+ * not_exists 验证一个值在某个表中的字段中不存在，相较于Laravel，支持同时判断多个字段
+ * not_exists verify a value does not exist in a table field, compared to Laravel, support judging multiple fields at the same time
+ * 用法：not_exists:表名称,字段名称,字段名称,字段名称
+ * Usage: not_exists:table_name,field_name,field_name,field_name
+ * 例子：not_exists:users,phone,email
+ * Example: not_exists:users,phone,email
+ */
+
+type NotExists struct {
+}
+
+// Signature The name of the rule.
+func (receiver *NotExists) Signature() string {
+	return "not_exists"
+}
+
+// Passes Determine if the validation rule passes.
+func (receiver *NotExists) Passes(_ validation.Data, val any, options ...any) bool {
+
+	tableName := options[0].(string)
+	fieldName := options[1].(string)
+	requestValue := val.(string)
+
+	if len(requestValue) == 0 {
+		return false
+	}
+
+	var count int64
+	query := facades.Orm().Query().Table(tableName).Where(fieldName, requestValue)
+	if len(options) > 2 {
+		for i := 2; i < len(options); i++ {
+			query = query.OrWhere(options[i].(string), requestValue)
+		}
+	}
+	count, err := query.Count()
+	if err != nil {
+		return false
+	}
+
+	return count == 0
+}
+
+// Message Get the validation error message.
+func (receiver *NotExists) Message() string {
+	return "record already exists"
+}