init

aorm.go

@@ -0,0 +1,53 @@
+package aorm
+
+import (
+	"database/sql" //只需导入你需要的驱动即可
+)
+
+// LinkCommon database/sql提供的库连接与事务，二者有很多方法是一致的，为了通用，抽象为该interface
+type LinkCommon interface {
+	Exec(query string, args ...interface{}) (sql.Result, error)
+	Prepare(query string) (*sql.Stmt, error)
+	Query(query string, args ...interface{}) (*sql.Rows, error)
+	QueryRow(query string, args ...interface{}) *sql.Row
+}
+
+// Executor 查询记录所需要的条件
+type Executor struct {
+	LinkCommon  LinkCommon
+	TableName   string
+	FiledList   []string
+	GroupList   []string
+	WhereList   []WhereItem
+	JoinList    []string
+	HavingList  []WhereItem
+	OrderList   []string
+	Offset      int
+	PageSize    int
+	IsDebug     bool
+	OpinionList []OpinionItem
+}
+
+// Use 使用数据库连接，或者事务
+func Use(linkCommon LinkCommon) *Executor {
+	executor := &Executor{
+		LinkCommon: linkCommon,
+	}
+
+	return executor
+}
+
+//清空查询条件,复用对象
+func (db *Executor) clear() {
+	db.TableName = ""
+	db.FiledList = make([]string, 0)
+	db.GroupList = make([]string, 0)
+	db.WhereList = make([]WhereItem, 0)
+	db.JoinList = make([]string, 0)
+	db.HavingList = make([]WhereItem, 0)
+	db.OrderList = make([]string, 0)
+	db.Offset = 0
+	db.PageSize = 0
+	db.IsDebug = false
+	db.OpinionList = make([]OpinionItem, 0)
+}