// Code generated by gorm.io/gen. DO NOT EDIT.
// Code generated by gorm.io/gen. DO NOT EDIT.
// Code generated by gorm.io/gen. DO NOT EDIT.

package model

import (
	"context"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	"gorm.io/gorm/schema"

	"gorm.io/gen"
	"gorm.io/gen/field"

	"gorm.io/plugin/dbresolver"

	"icloudapp.cn/tools/service/entity"
)

func newBookCategory(db *gorm.DB, opts ...gen.DOOption) MBookCategory {
	_MBookCategory := MBookCategory{}

	_MBookCategory.MBookCategoryDo.UseDB(db, opts...)
	_MBookCategory.MBookCategoryDo.UseModel(&entity.BookCategory{})

	tableName := _MBookCategory.MBookCategoryDo.TableName()
	_MBookCategory.ALL = field.NewAsterisk(tableName)
	_MBookCategory.ID = field.NewInt64(tableName, "id")
	_MBookCategory.BookID = field.NewInt64(tableName, "book_id")
	_MBookCategory.CategoryID = field.NewInt64(tableName, "category_id")
	_MBookCategory.CreateAt = field.NewTime(tableName, "create_at")
	_MBookCategory.UpdateAt = field.NewTime(tableName, "update_at")

	_MBookCategory.fillFieldMap()

	return _MBookCategory
}

type MBookCategory struct {
	MBookCategoryDo MBookCategoryDo

	ALL        field.Asterisk
	ID         field.Int64 // ID
	BookID     field.Int64 // 书籍ID
	CategoryID field.Int64 // 分类ID
	CreateAt   field.Time  // 创建时间
	UpdateAt   field.Time  // 更新时间

	fieldMap map[string]field.Expr
}

func (b MBookCategory) Table(newTableName string) *MBookCategory {
	b.MBookCategoryDo.UseTable(newTableName)
	return b.updateTableName(newTableName)
}

func (b MBookCategory) As(alias string) *MBookCategory {
	b.MBookCategoryDo.DO = *(b.MBookCategoryDo.As(alias).(*gen.DO))
	return b.updateTableName(alias)
}

func (b *MBookCategory) updateTableName(table string) *MBookCategory {
	b.ALL = field.NewAsterisk(table)
	b.ID = field.NewInt64(table, "id")
	b.BookID = field.NewInt64(table, "book_id")
	b.CategoryID = field.NewInt64(table, "category_id")
	b.CreateAt = field.NewTime(table, "create_at")
	b.UpdateAt = field.NewTime(table, "update_at")

	b.fillFieldMap()

	return b
}

func (b *MBookCategory) WithContext(ctx context.Context) IBookCategoryDo {
	return b.MBookCategoryDo.WithContext(ctx)
}

func (b MBookCategory) TableName() string { return b.MBookCategoryDo.TableName() }

func (b MBookCategory) Alias() string { return b.MBookCategoryDo.Alias() }

func (b *MBookCategory) GetFieldByName(fieldName string) (field.OrderExpr, bool) {
	_f, ok := b.fieldMap[fieldName]
	if !ok || _f == nil {
		return nil, false
	}
	_oe, ok := _f.(field.OrderExpr)
	return _oe, ok
}

func (b *MBookCategory) fillFieldMap() {
	b.fieldMap = make(map[string]field.Expr, 5)
	b.fieldMap["id"] = b.ID
	b.fieldMap["book_id"] = b.BookID
	b.fieldMap["category_id"] = b.CategoryID
	b.fieldMap["create_at"] = b.CreateAt
	b.fieldMap["update_at"] = b.UpdateAt
}

func (b MBookCategory) clone(db *gorm.DB) MBookCategory {
	b.MBookCategoryDo.ReplaceConnPool(db.Statement.ConnPool)
	return b
}

func (b MBookCategory) replaceDB(db *gorm.DB) MBookCategory {
	b.MBookCategoryDo.ReplaceDB(db)
	return b
}

type MBookCategoryDo struct{ gen.DO }

type IBookCategoryDo interface {
	gen.SubQuery
	Debug() IBookCategoryDo
	WithContext(ctx context.Context) IBookCategoryDo
	WithResult(fc func(tx gen.Dao)) gen.ResultInfo
	ReplaceDB(db *gorm.DB)
	ReadDB() IBookCategoryDo
	WriteDB() IBookCategoryDo
	As(alias string) gen.Dao
	Session(config *gorm.Session) IBookCategoryDo
	Columns(cols ...field.Expr) gen.Columns
	Clauses(conds ...clause.Expression) IBookCategoryDo
	Not(conds ...gen.Condition) IBookCategoryDo
	Or(conds ...gen.Condition) IBookCategoryDo
	Select(conds ...field.Expr) IBookCategoryDo
	Where(conds ...gen.Condition) IBookCategoryDo
	Order(conds ...field.Expr) IBookCategoryDo
	Distinct(cols ...field.Expr) IBookCategoryDo
	Omit(cols ...field.Expr) IBookCategoryDo
	Join(table schema.Tabler, on ...field.Expr) IBookCategoryDo
	LeftJoin(table schema.Tabler, on ...field.Expr) IBookCategoryDo
	RightJoin(table schema.Tabler, on ...field.Expr) IBookCategoryDo
	Group(cols ...field.Expr) IBookCategoryDo
	Having(conds ...gen.Condition) IBookCategoryDo
	Limit(limit int) IBookCategoryDo
	Offset(offset int) IBookCategoryDo
	Count() (count int64, err error)
	Scopes(funcs ...func(gen.Dao) gen.Dao) IBookCategoryDo
	Unscoped() IBookCategoryDo
	Create(values ...*entity.BookCategory) error
	CreateInBatches(values []*entity.BookCategory, batchSize int) error
	Save(values ...*entity.BookCategory) error
	First() (*entity.BookCategory, error)
	Take() (*entity.BookCategory, error)
	Last() (*entity.BookCategory, error)
	Find() ([]*entity.BookCategory, error)
	FindInBatch(batchSize int, fc func(tx gen.Dao, batch int) error) (results []*entity.BookCategory, err error)
	FindInBatches(result *[]*entity.BookCategory, batchSize int, fc func(tx gen.Dao, batch int) error) error
	Pluck(column field.Expr, dest interface{}) error
	Delete(...*entity.BookCategory) (info gen.ResultInfo, err error)
	Update(column field.Expr, value interface{}) (info gen.ResultInfo, err error)
	UpdateSimple(columns ...field.AssignExpr) (info gen.ResultInfo, err error)
	Updates(value interface{}) (info gen.ResultInfo, err error)
	UpdateColumn(column field.Expr, value interface{}) (info gen.ResultInfo, err error)
	UpdateColumnSimple(columns ...field.AssignExpr) (info gen.ResultInfo, err error)
	UpdateColumns(value interface{}) (info gen.ResultInfo, err error)
	UpdateFrom(q gen.SubQuery) gen.Dao
	Attrs(attrs ...field.AssignExpr) IBookCategoryDo
	Assign(attrs ...field.AssignExpr) IBookCategoryDo
	Joins(fields ...field.RelationField) IBookCategoryDo
	Preload(fields ...field.RelationField) IBookCategoryDo
	FirstOrInit() (*entity.BookCategory, error)
	FirstOrCreate() (*entity.BookCategory, error)
	FindByPage(offset int, limit int) (result []*entity.BookCategory, count int64, err error)
	ScanByPage(result interface{}, offset int, limit int) (count int64, err error)
	Scan(result interface{}) (err error)
	Returning(value interface{}, columns ...string) IBookCategoryDo
	UnderlyingDB() *gorm.DB
	schema.Tabler
}

func (b MBookCategoryDo) Debug() IBookCategoryDo {
	return b.withDO(b.DO.Debug())
}

func (b MBookCategoryDo) WithContext(ctx context.Context) IBookCategoryDo {
	return b.withDO(b.DO.WithContext(ctx))
}

func (b MBookCategoryDo) ReadDB() IBookCategoryDo {
	return b.Clauses(dbresolver.Read)
}

func (b MBookCategoryDo) WriteDB() IBookCategoryDo {
	return b.Clauses(dbresolver.Write)
}

func (b MBookCategoryDo) Session(config *gorm.Session) IBookCategoryDo {
	return b.withDO(b.DO.Session(config))
}

func (b MBookCategoryDo) Clauses(conds ...clause.Expression) IBookCategoryDo {
	return b.withDO(b.DO.Clauses(conds...))
}

func (b MBookCategoryDo) Returning(value interface{}, columns ...string) IBookCategoryDo {
	return b.withDO(b.DO.Returning(value, columns...))
}

func (b MBookCategoryDo) Not(conds ...gen.Condition) IBookCategoryDo {
	return b.withDO(b.DO.Not(conds...))
}

func (b MBookCategoryDo) Or(conds ...gen.Condition) IBookCategoryDo {
	return b.withDO(b.DO.Or(conds...))
}

func (b MBookCategoryDo) Select(conds ...field.Expr) IBookCategoryDo {
	return b.withDO(b.DO.Select(conds...))
}

func (b MBookCategoryDo) Where(conds ...gen.Condition) IBookCategoryDo {
	return b.withDO(b.DO.Where(conds...))
}

func (b MBookCategoryDo) Exists(subquery interface{ UnderlyingDB() *gorm.DB }) IBookCategoryDo {
	return b.Where(field.CompareSubQuery(field.ExistsOp, nil, subquery.UnderlyingDB()))
}

func (b MBookCategoryDo) Order(conds ...field.Expr) IBookCategoryDo {
	return b.withDO(b.DO.Order(conds...))
}

func (b MBookCategoryDo) Distinct(cols ...field.Expr) IBookCategoryDo {
	return b.withDO(b.DO.Distinct(cols...))
}

func (b MBookCategoryDo) Omit(cols ...field.Expr) IBookCategoryDo {
	return b.withDO(b.DO.Omit(cols...))
}

func (b MBookCategoryDo) Join(table schema.Tabler, on ...field.Expr) IBookCategoryDo {
	return b.withDO(b.DO.Join(table, on...))
}

func (b MBookCategoryDo) LeftJoin(table schema.Tabler, on ...field.Expr) IBookCategoryDo {
	return b.withDO(b.DO.LeftJoin(table, on...))
}

func (b MBookCategoryDo) RightJoin(table schema.Tabler, on ...field.Expr) IBookCategoryDo {
	return b.withDO(b.DO.RightJoin(table, on...))
}

func (b MBookCategoryDo) Group(cols ...field.Expr) IBookCategoryDo {
	return b.withDO(b.DO.Group(cols...))
}

func (b MBookCategoryDo) Having(conds ...gen.Condition) IBookCategoryDo {
	return b.withDO(b.DO.Having(conds...))
}

func (b MBookCategoryDo) Limit(limit int) IBookCategoryDo {
	return b.withDO(b.DO.Limit(limit))
}

func (b MBookCategoryDo) Offset(offset int) IBookCategoryDo {
	return b.withDO(b.DO.Offset(offset))
}

func (b MBookCategoryDo) Scopes(funcs ...func(gen.Dao) gen.Dao) IBookCategoryDo {
	return b.withDO(b.DO.Scopes(funcs...))
}

func (b MBookCategoryDo) Unscoped() IBookCategoryDo {
	return b.withDO(b.DO.Unscoped())
}

func (b MBookCategoryDo) Create(values ...*entity.BookCategory) error {
	if len(values) == 0 {
		return nil
	}
	return b.DO.Create(values)
}

func (b MBookCategoryDo) CreateInBatches(values []*entity.BookCategory, batchSize int) error {
	return b.DO.CreateInBatches(values, batchSize)
}

// Save : !!! underlying implementation is different with GORM
// The method is equivalent to executing the statement: db.Clauses(clause.OnConflict{UpdateAll: true}).Create(values)
func (b MBookCategoryDo) Save(values ...*entity.BookCategory) error {
	if len(values) == 0 {
		return nil
	}
	return b.DO.Save(values)
}

func (b MBookCategoryDo) First() (*entity.BookCategory, error) {
	if result, err := b.DO.First(); err != nil {
		return nil, err
	} else {
		return result.(*entity.BookCategory), nil
	}
}

func (b MBookCategoryDo) Take() (*entity.BookCategory, error) {
	if result, err := b.DO.Take(); err != nil {
		return nil, err
	} else {
		return result.(*entity.BookCategory), nil
	}
}

func (b MBookCategoryDo) Last() (*entity.BookCategory, error) {
	if result, err := b.DO.Last(); err != nil {
		return nil, err
	} else {
		return result.(*entity.BookCategory), nil
	}
}

func (b MBookCategoryDo) Find() ([]*entity.BookCategory, error) {
	result, err := b.DO.Find()
	return result.([]*entity.BookCategory), err
}

func (b MBookCategoryDo) FindInBatch(batchSize int, fc func(tx gen.Dao, batch int) error) (results []*entity.BookCategory, err error) {
	buf := make([]*entity.BookCategory, 0, batchSize)
	err = b.DO.FindInBatches(&buf, batchSize, func(tx gen.Dao, batch int) error {
		defer func() { results = append(results, buf...) }()
		return fc(tx, batch)
	})
	return results, err
}

func (b MBookCategoryDo) FindInBatches(result *[]*entity.BookCategory, batchSize int, fc func(tx gen.Dao, batch int) error) error {
	return b.DO.FindInBatches(result, batchSize, fc)
}

func (b MBookCategoryDo) Attrs(attrs ...field.AssignExpr) IBookCategoryDo {
	return b.withDO(b.DO.Attrs(attrs...))
}

func (b MBookCategoryDo) Assign(attrs ...field.AssignExpr) IBookCategoryDo {
	return b.withDO(b.DO.Assign(attrs...))
}

func (b MBookCategoryDo) Joins(fields ...field.RelationField) IBookCategoryDo {
	for _, _f := range fields {
		b = *b.withDO(b.DO.Joins(_f))
	}
	return &b
}

func (b MBookCategoryDo) Preload(fields ...field.RelationField) IBookCategoryDo {
	for _, _f := range fields {
		b = *b.withDO(b.DO.Preload(_f))
	}
	return &b
}

func (b MBookCategoryDo) FirstOrInit() (*entity.BookCategory, error) {
	if result, err := b.DO.FirstOrInit(); err != nil {
		return nil, err
	} else {
		return result.(*entity.BookCategory), nil
	}
}

func (b MBookCategoryDo) FirstOrCreate() (*entity.BookCategory, error) {
	if result, err := b.DO.FirstOrCreate(); err != nil {
		return nil, err
	} else {
		return result.(*entity.BookCategory), nil
	}
}

func (b MBookCategoryDo) FindByPage(offset int, limit int) (result []*entity.BookCategory, count int64, err error) {
	result, err = b.Offset(offset).Limit(limit).Find()
	if err != nil {
		return
	}

	if size := len(result); 0 < limit && 0 < size && size < limit {
		count = int64(size + offset)
		return
	}

	count, err = b.Offset(-1).Limit(-1).Count()
	return
}

func (b MBookCategoryDo) ScanByPage(result interface{}, offset int, limit int) (count int64, err error) {
	count, err = b.Count()
	if err != nil {
		return
	}

	err = b.Offset(offset).Limit(limit).Scan(result)
	return
}

func (b MBookCategoryDo) Scan(result interface{}) (err error) {
	return b.DO.Scan(result)
}

func (b MBookCategoryDo) Delete(models ...*entity.BookCategory) (result gen.ResultInfo, err error) {
	return b.DO.Delete(models)
}

func (b *MBookCategoryDo) withDO(do gen.Dao) *MBookCategoryDo {
	b.DO = *do.(*gen.DO)
	return b
}