package tests_test

import (
	"errors"
	"testing"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	. "gorm.io/gorm/utils/tests"
)

func TestDelete(t *testing.T) {
	users := []User{*GetUser("delete", Config{}), *GetUser("delete", Config{}), *GetUser("delete", Config{})}

	if err := DB.Create(&users).Error; err != nil {
		t.Errorf("errors happened when create: %v", err)
	}

	for _, user := range users {
		if user.ID == 0 {

```

The wrapper will handle all serialization and de-seralization of the request and response,
and furthermore provides reuse of the structs used for the request and response.

Note that Responses sent for serialization are automatically reused for similar requests.
If the response contains shared data it will cause issues, since each unique response is reused.
To disable this behavior, use `(SingleHandler).WithSharedResponse()` to disable it.

			"SELECT * FROM `users` FOR SHARE OF `users`", nil,
		},
		{
			[]clause.Interface{clause.Select{}, clause.From{}, clause.Locking{Strength: clause.LockingStrengthUpdate, Options: clause.LockingOptionsNoWait}},
			"SELECT * FROM `users` FOR UPDATE NOWAIT", nil,
		},
		{

	}, {
		Expressions: []clause.Expression{
			clause.Neq{Column: column, Value: nil},
			clause.Neq{Column: column, Value: (*string)(nil)},
			clause.Neq{Column: column, Value: (*int)(nil)},
			clause.Neq{Column: column, Value: (*bool)(nil)},
			clause.Neq{Column: column, Value: (interface{})(nil)},
		},
		Result: "`column-name` IS NOT NULL",
	}, {
		Expressions: []clause.Expression{

				"age": 18,
			},
			expect: clause.Values{
				Columns: []clause.Column{{Name: "age"}},
				Values:  [][]interface{}{{18}},
			},
		},
		{
			name: "Test convert float value",
			input: map[string]interface{}{
				"score": 99.5,
			},
			expect: clause.Values{
				Columns: []clause.Column{{Name: "score"}},
				Values:  [][]interface{}{{99.5}},
			},
		},
		{

func (limit Limit) MergeClause(clause *Clause) {
	clause.Name = ""

	if v, ok := clause.Expression.(Limit); ok {
		if (limit.Limit == nil || *limit.Limit == 0) && v.Limit != nil {
			limit.Limit = v.Limit
		}

		if limit.Offset == 0 && v.Offset > 0 {
			limit.Offset = v.Offset
		} else if limit.Offset < 0 {
			limit.Offset = 0
		}
	}

	clause.Expression = limit

		},
		{
			[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Limit: &limit0}},
			"SELECT * FROM `users` LIMIT ?",
			[]interface{}{limit0},
		},
		{
			[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Limit: &limit0}, clause.Limit{Offset: 0}},
			"SELECT * FROM `users` LIMIT ?",
			[]interface{}{limit0},
		},
		{
			[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Offset: 20}},

package clause

import (
	"strings"
)

const (
	AndWithSpace = " AND "
	OrWithSpace  = " OR "
)

// Where where clause
type Where struct {
	Exprs []Expression
}

// Name where clause name
func (where Where) Name() string {
	return "WHERE"
}

// Build build where clause
func (where Where) Build(builder Builder) {
	if len(where.Exprs) == 1 {
		if andCondition, ok := where.Exprs[0].(AndConditions); ok {

			}},
			"SELECT * FROM `users` WHERE `users`.`id` = ? OR `name` <> ?",
			[]interface{}{"1", "jinzhu"},
		},
		{
			[]clause.Interface{clause.Select{}, clause.From{}, clause.Where{

}

// ParseCheckConstraints parse schema check constraints
func (schema *Schema) ParseCheckConstraints() map[string]CheckConstraint {
	checks := map[string]CheckConstraint{}
	for _, field := range schema.FieldsByDBName {
		if chk := field.TagSettings["CHECK"]; chk != "" {
			names := strings.Split(chk, ",")