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258 lines
6.3 KiB
Go

package genmssql
import (
"fmt"
"sort"
"strings"
"github.com/xxjwxc/gormt/data/config"
"github.com/xxjwxc/gormt/data/view/model"
"github.com/xxjwxc/public/mylog"
"github.com/xxjwxc/public/tools"
"gorm.io/driver/sqlserver"
"gorm.io/gorm"
)
// MssqlModel mysql model from IModel
var MssqlModel mssqlModel
type mssqlModel struct {
}
// GenModel get model.DBInfo info.获取数据库相关属性
func (m *mssqlModel) GenModel() model.DBInfo {
dsn := fmt.Sprintf("server=%v;database=%v;user id=%v;password=%v;port=%v;encrypt=disable",
config.GetDbInfo().Host, config.GetDbInfo().Database, config.GetDbInfo().Username, config.GetDbInfo().Password, config.GetDbInfo().Port)
db, err := gorm.Open(sqlserver.Open(dsn), &gorm.Config{})
if err != nil {
mylog.Error(err)
return model.DBInfo{}
}
defer func() {
sqldb, _ := db.DB()
sqldb.Close()
}()
var dbInfo model.DBInfo
m.getPackageInfo(db, &dbInfo)
dbInfo.PackageName = m.GetPkgName()
dbInfo.DbName = m.GetDbName()
return dbInfo
}
// GetDbName get database name.获取数据库名字
func (m *mssqlModel) GetDbName() string {
return config.GetDbInfo().Database
}
// GetTableNames get table name.获取格式化后指定的表名
func (m *mssqlModel) GetTableNames() string {
return config.GetTableNames()
}
// GetOriginTableNames get table name.获取原始指定的表名
func (m *mssqlModel) GetOriginTableNames() string {
return config.GetOriginTableNames()
}
// GetPkgName package names through config outdir configuration.通过config outdir 配置获取包名
func (m *mssqlModel) GetPkgName() string {
dir := config.GetOutDir()
dir = strings.Replace(dir, "\\", "/", -1)
if len(dir) > 0 {
if dir[len(dir)-1] == '/' {
dir = dir[:(len(dir) - 1)]
}
}
var pkgName string
list := strings.Split(dir, "/")
if len(list) > 0 {
pkgName = list[len(list)-1]
}
if len(pkgName) == 0 || pkgName == "." {
list = strings.Split(tools.GetModelPath(), "/")
if len(list) > 0 {
pkgName = list[len(list)-1]
}
}
return pkgName
}
func (m *mssqlModel) getPackageInfo(orm *gorm.DB, info *model.DBInfo) {
tabls := m.getTables(orm) // get table and notes
// if m := config.GetTableList(); len(m) > 0 {
// // 制定了表之后
// newTabls := make(map[string]string)
// for t := range m {
// if notes, ok := tabls[t]; ok {
// newTabls[t] = notes
// } else {
// fmt.Printf("table: %s not found in db\n", t)
// }
// }
// tabls = newTabls
// }
for tabName, notes := range tabls {
var tab model.TabInfo
tab.Name = tabName
tab.Notes = notes
if config.GetIsOutSQL() {
// TODO:获取创建sql语句
// Get create SQL statements.获取创建sql语句
// rows, err := orm.Raw("show create table " + assemblyTable(tabName)).Rows()
// //defer rows.Close()
// if err == nil {
// if rows.Next() {
// var table, CreateTable string
// rows.Scan(&table, &CreateTable)
// tab.SQLBuildStr = CreateTable
// }
// }
// rows.Close()
// ----------end
}
// build element.构造元素
tab.Em = m.getTableElement(orm, tabName)
// --------end
info.TabList = append(info.TabList, tab)
}
// sort tables
sort.Slice(info.TabList, func(i, j int) bool {
return info.TabList[i].Name < info.TabList[j].Name
})
}
// getTableElement Get table columns and comments.获取表列及注释
func (m *mssqlModel) getTableElement(orm *gorm.DB, tab string) (el []model.ColumnsInfo) {
sql := fmt.Sprintf(`SELECT
id = a.colorder,
name = a.name,
pk = case when exists(SELECT 1 FROM sysobjects where xtype='PK' and parent_obj=a.id and name in (
SELECT name FROM sysindexes WHERE indid in( SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid))) then 1 else 0 end,
tp = b.name,
len = COLUMNPROPERTY(a.id,a.name,'PRECISION'),
isnull = a.isnullable,
des = isnull(g.[value],'')
FROM
syscolumns a
left join
systypes b
on
a.xusertype=b.xusertype
inner join
sysobjects d
on
a.id=d.id and d.xtype='U' and d.name<>'dtproperties'
left join
sys.extended_properties g
on
a.id=G.major_id and a.colid=g.minor_id
left join
sys.extended_properties f
on
d.id=f.major_id and f.minor_id=0
where
d.name='%v'
order by
a.id,a.colorder`, tab)
lenPk := 0
// get keys
var Keys []ColumnKeys
orm.Raw(sql).Scan(&Keys)
for i := 0; i < len(Keys); i++ {
v := &Keys[i]
if v.Pk == 1 {
lenPk++
}
if strings.EqualFold(v.Type, "varchar") { // 字符串
v.Type = fmt.Sprintf("varchar(%v)", v.Length)
} else if strings.EqualFold(v.Type, "int") { // int
v.Type = fmt.Sprintf("int(%v)", v.Length)
}
}
// ----------end
// TODO:ForeignKey
for _, v := range Keys {
var tmp model.ColumnsInfo
tmp.Name = v.Name
tmp.Type = v.Type
FixNotes(&tmp, v.Desc) // 分析表注释
if v.Pk > 0 { // 主键,或者联合组件
if lenPk <= 1 { // 主键
tmp.Index = append(tmp.Index, model.KList{
Key: model.ColumnsKeyPrimary,
Multi: false,
KeyType: "primaryKey",
})
} else {
tmp.Index = append(tmp.Index, model.KList{
Key: model.ColumnsKeyPrimary,
Multi: true,
KeyType: "FULLTEXT",
})
}
}
tmp.IsNull = (v.Isnull == 1)
el = append(el, tmp)
}
return
}
// getTables Get columns and comments.获取表列及注释
func (m *mssqlModel) getTables(orm *gorm.DB) map[string]string {
tbDesc := make(map[string]string)
// Get column names.获取列名
if m.GetOriginTableNames() != "" {
sarr := strings.Split(m.GetOriginTableNames(), ",")
if len(sarr) != 0 {
for _, val := range sarr {
tbDesc[val] = ""
}
}
} else {
var list []TableDescription
err := orm.Raw(`SELECT DISTINCT
d.name,
f.value
FROM
syscolumns a
LEFT JOIN systypes b ON a.xusertype= b.xusertype
INNER JOIN sysobjects d ON a.id= d.id
AND d.xtype= 'U'
AND d.name<> 'dtproperties'
LEFT JOIN syscomments e ON a.cdefault= e.id
LEFT JOIN sys.extended_properties g ON a.id= G.major_id
AND a.colid= g.minor_id
LEFT JOIN sys.extended_properties f ON d.id= f.major_id
AND f.minor_id= 0 ;`).Scan(&list).Error
if err != nil {
if !config.GetIsGUI() {
fmt.Println(err)
}
return tbDesc
}
for _, v := range list {
tbDesc[v.Name] = v.Value
}
}
return tbDesc
}
func assemblyTable(name string) string {
return "`" + name + "`"
}