dameng

Documentation

Overview

本方言包基于gorm v1.24.2开发，需要配合达梦数据库驱动使用

*

• @Description 达梦数据库 Clob (*dm.DmClob)数据类型处理
• @Author $
• @Date $ $ *

Index

• Variables
• func Create(db *gorm.DB)
• func MergeCreate(db *gorm.DB, onConflict clause.OnConflict, values clause.Values)
• func New(config Config) gorm.Dialector
• func Open(dsn string) gorm.Dialector
• type Config
• type Dialector
  • func (d Dialector) BindVarTo(writer clause.Writer, stmt *gorm.Statement, v interface{})
  • func (d Dialector) DataTypeOf(field *schema.Field) string
  • func (d Dialector) DefaultValueOf(*schema.Field) clause.Expression
  • func (d Dialector) Explain(sql string, vars ...interface{}) string
  • func (d Dialector) Initialize(db *gorm.DB) (err error)
  • func (d Dialector) Migrator(db *gorm.DB) gorm.Migrator
  • func (d Dialector) Name() string
  • func (d Dialector) QuoteTo(writer clause.Writer, str string)
  • func (d Dialector) RollbackTo(tx *gorm.DB, name string) error
  • func (d Dialector) SavePoint(tx *gorm.DB, name string) error
• type Index
• type Migrator
  • func (m Migrator) AddColumn(dst interface{}, field string) error
  • func (m Migrator) AlterColumn(value interface{}, field string) error
  • func (m Migrator) AutoMigrate(dst ...interface{}) error
  • func (m Migrator) ColumnTypes(dst interface{}) ([]gorm.ColumnType, error)
  • func (m Migrator) CreateConstraint(dst interface{}, name string) error
  • func (m Migrator) CreateIndex(dst interface{}, name string) error
  • func (m Migrator) CreateTable(values ...interface{}) error
  • func (m Migrator) CreateView(name string, option gorm.ViewOption) error
  • func (m Migrator) CurrentDatabase() (name string)
  • func (m Migrator) DropColumn(dst interface{}, field string) error
  • func (m Migrator) DropConstraint(value interface{}, name string) error
  • func (m Migrator) DropIndex(value interface{}, name string) error
  • func (m Migrator) DropTable(values ...interface{}) error
  • func (m Migrator) DropView(name string) error
  • func (m Migrator) FullDataTypeOf(field *schema.Field) clause.Expr
  • func (m Migrator) GetIndexes(value interface{}) ([]gorm.Index, error)
  • func (m Migrator) GetTables() (tableList []string, err error)
  • func (m Migrator) GetTypeAliases(databaseTypeName string) []string
  • func (m Migrator) HasColumn(value interface{}, field string) bool
  • func (m Migrator) HasConstraint(value interface{}, name string) bool
  • func (m Migrator) HasIndex(value interface{}, name string) bool
  • func (m Migrator) HasTable(value interface{}) bool
  • func (m Migrator) MigrateColumn(dst interface{}, field *schema.Field, columnType gorm.ColumnType) error
  • func (m Migrator) RenameColumn(value interface{}, oldName, newName string) error
  • func (m Migrator) RenameIndex(value interface{}, oldName, newName string) error
  • func (m Migrator) RenameTable(oldName, newName interface{}) error
• type MyClob
  • func (clob *MyClob) Scan(v interface{}) error
  • func (clob MyClob) Value() (driver.Value, error)

Variables

var (
	// CreateClauses create clauses
	CreateClauses = []string{"INSERT", "VALUES", "ON CONFLICT"}
	// QueryClauses query clauses
	QueryClauses = []string{}
	// UpdateClauses update clauses
	UpdateClauses = []string{"UPDATE", "SET", "WHERE", "ORDER BY", "LIMIT"}
	// DeleteClauses delete clauses
	DeleteClauses = []string{"DELETE", "FROM", "WHERE", "ORDER BY", "LIMIT"}
)

Functions

func Create

func Create(db *gorm.DB)

func MergeCreate

func MergeCreate(db *gorm.DB, onConflict clause.OnConflict, values clause.Values)

func New

func New(config Config) gorm.Dialector

func Open

func Open(dsn string) gorm.Dialector

Types

type Config

type Config struct {
	DriverName        string
	DSN               string
	Conn              gorm.ConnPool
	DefaultStringSize uint
}

type Dialector

type Dialector struct {
	*Config
}

func (Dialector) BindVarTo

func (d Dialector) BindVarTo(writer clause.Writer, stmt *gorm.Statement, v interface{})

func (Dialector) DataTypeOf

func (d Dialector) DataTypeOf(field *schema.Field) string

func (Dialector) DefaultValueOf

func (d Dialector) DefaultValueOf(*schema.Field) clause.Expression

func (Dialector) Explain

func (d Dialector) Explain(sql string, vars ...interface{}) string

func (Dialector) Initialize

func (d Dialector) Initialize(db *gorm.DB) (err error)

func (Dialector) Migrator

func (d Dialector) Migrator(db *gorm.DB) gorm.Migrator

func (Dialector) Name

func (d Dialector) Name() string

func (Dialector) QuoteTo

func (d Dialector) QuoteTo(writer clause.Writer, str string)

func (Dialector) RollbackTo

func (d Dialector) RollbackTo(tx *gorm.DB, name string) error

func (Dialector) SavePoint

func (d Dialector) SavePoint(tx *gorm.DB, name string) error

type Index

type Index struct {
	TableName  string `gorm:"column:TABLE_NAME"`
	ColumnName string `gorm:"column:COLUMN_NAME"`
	IndexName  string `gorm:"column:INDEX_NAME"`
	NonUnique  bool   `gorm:"column:NON_UNIQUE"`
	Primary    bool   `gorm:"column:IS_PRIMARY"`
}

type Migrator

type Migrator struct {
	migrator.Migrator
	Dialector
}

func (Migrator) AddColumn

func (m Migrator) AddColumn(dst interface{}, field string) error

func (Migrator) AlterColumn

func (m Migrator) AlterColumn(value interface{}, field string) error

func (Migrator) AutoMigrate

func (m Migrator) AutoMigrate(dst ...interface{}) error

func (Migrator) ColumnTypes

func (m Migrator) ColumnTypes(dst interface{}) ([]gorm.ColumnType, error)

func (Migrator) CreateConstraint

func (m Migrator) CreateConstraint(dst interface{}, name string) error

func (Migrator) CreateIndex

func (m Migrator) CreateIndex(dst interface{}, name string) error

func (Migrator) CreateTable

func (m Migrator) CreateTable(values ...interface{}) error

func (Migrator) CreateView

func (m Migrator) CreateView(name string, option gorm.ViewOption) error

func (Migrator) CurrentDatabase

func (m Migrator) CurrentDatabase() (name string)

func (Migrator) DropColumn

func (m Migrator) DropColumn(dst interface{}, field string) error

func (Migrator) DropConstraint

func (m Migrator) DropConstraint(value interface{}, name string) error

func (Migrator) DropIndex

func (m Migrator) DropIndex(value interface{}, name string) error

func (Migrator) DropTable

func (m Migrator) DropTable(values ...interface{}) error

func (Migrator) DropView

func (m Migrator) DropView(name string) error

func (Migrator) FullDataTypeOf

func (m Migrator) FullDataTypeOf(field *schema.Field) clause.Expr

func (Migrator) GetIndexes

func (m Migrator) GetIndexes(value interface{}) ([]gorm.Index, error)

func (Migrator) GetTables

func (m Migrator) GetTables() (tableList []string, err error)

func (Migrator) GetTypeAliases

func (m Migrator) GetTypeAliases(databaseTypeName string) []string

func (Migrator) HasColumn

func (m Migrator) HasColumn(value interface{}, field string) bool

func (Migrator) HasConstraint

func (m Migrator) HasConstraint(value interface{}, name string) bool

func (Migrator) HasIndex

func (m Migrator) HasIndex(value interface{}, name string) bool

func (Migrator) HasTable

func (m Migrator) HasTable(value interface{}) bool

func (Migrator) MigrateColumn

func (m Migrator) MigrateColumn(dst interface{}, field *schema.Field, columnType gorm.ColumnType) error

func (Migrator) RenameColumn

func (m Migrator) RenameColumn(value interface{}, oldName, newName string) error

func (Migrator) RenameIndex

func (m Migrator) RenameIndex(value interface{}, oldName, newName string) error

func (Migrator) RenameTable

func (m Migrator) RenameTable(oldName, newName interface{}) error

type MyClob

type MyClob string

func (*MyClob) Scan

func (clob *MyClob) Scan(v interface{}) error

将数据库中取出的数据，赋值给目标类型

func (MyClob) Value

func (clob MyClob) Value() (driver.Value, error)

写入数据库之前，对数据做类型转换