github.com/gogf/gf/v2@v2.7.4/util/gvalid/internal/builtin/builtin_required_if.go (about)

     1  // Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
     2  //
     3  // This Source Code Form is subject to the terms of the MIT License.
     4  // If a copy of the MIT was not distributed with this file,
     5  // You can obtain one at https://github.com/gogf/gf.
     6  
     7  package builtin
     8  
     9  import (
    10  	"errors"
    11  	"strings"
    12  
    13  	"github.com/gogf/gf/v2/errors/gcode"
    14  	"github.com/gogf/gf/v2/errors/gerror"
    15  	"github.com/gogf/gf/v2/util/gconv"
    16  	"github.com/gogf/gf/v2/util/gutil"
    17  )
    18  
    19  // RuleRequiredIf implements `required-if` rule:
    20  // Required if any of given field and its value are equal.
    21  //
    22  // Format:  required-if:field,value,...
    23  // Example: required-if:id,1,age,18
    24  type RuleRequiredIf struct{}
    25  
    26  func init() {
    27  	Register(RuleRequiredIf{})
    28  }
    29  
    30  func (r RuleRequiredIf) Name() string {
    31  	return "required-if"
    32  }
    33  
    34  func (r RuleRequiredIf) Message() string {
    35  	return "The {field} field is required"
    36  }
    37  
    38  func (r RuleRequiredIf) Run(in RunInput) error {
    39  	var (
    40  		required   = false
    41  		array      = strings.Split(in.RulePattern, ",")
    42  		foundValue interface{}
    43  		dataMap    = in.Data.Map()
    44  	)
    45  	if len(array)%2 != 0 {
    46  		return gerror.NewCodef(
    47  			gcode.CodeInvalidParameter,
    48  			`invalid "%s" rule pattern: %s`,
    49  			r.Name(),
    50  			in.RulePattern,
    51  		)
    52  	}
    53  	// It supports multiple field and value pairs.
    54  	for i := 0; i < len(array); {
    55  		var (
    56  			tk = array[i]
    57  			tv = array[i+1]
    58  		)
    59  		_, foundValue = gutil.MapPossibleItemByKey(dataMap, tk)
    60  		if in.Option.CaseInsensitive {
    61  			required = strings.EqualFold(tv, gconv.String(foundValue))
    62  		} else {
    63  			required = strings.Compare(tv, gconv.String(foundValue)) == 0
    64  		}
    65  		if required {
    66  			break
    67  		}
    68  		i += 2
    69  	}
    70  	if required && isRequiredEmpty(in.Value.Val()) {
    71  		return errors.New(in.Message)
    72  	}
    73  	return nil
    74  }