[feature]:支持Sqlite数据库 (#1467)

* add sqlite3 support

* 修改gorm.io/driver/sqlite 为 github.com/glebarez/sqlite 适配windows用户无cgo环境

---------

Co-authored-by: Kafumio <linzehong1_2020@qq.com>
Co-authored-by: Kafumio <73083337+Kafumio@users.noreply.github.com>
Co-authored-by: sliverhorn <sliver_horn@qq.com>

server/service/system/sys_auto_code_sqlite.go

@@ -0,0 +1,82 @@
+package system
+
+import (
+	"fmt"
+	"github.com/flipped-aurora/gin-vue-admin/server/global"
+	"github.com/flipped-aurora/gin-vue-admin/server/model/system/response"
+	"path/filepath"
+	"strings"
+)
+
+var AutoCodeSqlite = new(autoCodeSqlite)
+
+type autoCodeSqlite struct{}
+
+// GetDB 获取数据库的所有数据库名
+// Author [piexlmax](https://github.com/piexlmax)
+// Author [SliverHorn](https://github.com/SliverHorn)
+func (a *autoCodeSqlite) GetDB(businessDB string) (data []response.Db, err error) {
+	var entities []response.Db
+	sql := "PRAGMA database_list;"
+	var databaseList []struct {
+		File string `gorm:"column:file"`
+	}
+	if businessDB == "" {
+		err = global.GVA_DB.Raw(sql).Find(&databaseList).Error
+	} else {
+		err = global.GVA_DBList[businessDB].Raw(sql).Find(&databaseList).Error
+	}
+	for _, database := range databaseList {
+		if database.File != "" {
+			fileName := filepath.Base(database.File)
+			fileExt := filepath.Ext(fileName)
+			fileNameWithoutExt := strings.TrimSuffix(fileName, fileExt)
+
+			entities = append(entities, response.Db{fileNameWithoutExt})
+		}
+	}
+	// entities = append(entities, response.Db{global.GVA_CONFIG.Sqlite.Dbname})
+	return entities, err
+}
+
+// GetTables 获取数据库的所有表名
+// Author [piexlmax](https://github.com/piexlmax)
+// Author [SliverHorn](https://github.com/SliverHorn)
+func (a *autoCodeSqlite) GetTables(businessDB string, dbName string) (data []response.Table, err error) {
+	var entities []response.Table
+	sql := `SELECT name FROM sqlite_master WHERE type='table'`
+	tabelNames := []string{}
+	if businessDB == "" {
+		err = global.GVA_DB.Raw(sql).Find(&tabelNames).Error
+	} else {
+		err = global.GVA_DBList[businessDB].Raw(sql).Find(&tabelNames).Error
+	}
+	for _, tabelName := range tabelNames {
+		entities = append(entities, response.Table{tabelName})
+	}
+	return entities, err
+}
+
+// GetColumn 获取指定数据表的所有字段名,类型值等
+// Author [piexlmax](https://github.com/piexlmax)
+// Author [SliverHorn](https://github.com/SliverHorn)
+func (a *autoCodeSqlite) GetColumn(businessDB string, tableName string, dbName string) (data []response.Column, err error) {
+	var entities []response.Column
+	sql := fmt.Sprintf("PRAGMA table_info(%s);", tableName)
+	var columnInfos []struct {
+		Name string `gorm:"column:name"`
+		Type string `gorm:"column:type"`
+	}
+	if businessDB == "" {
+		err = global.GVA_DB.Raw(sql).Scan(&columnInfos).Error
+	} else {
+		err = global.GVA_DBList[businessDB].Raw(sql).Scan(&columnInfos).Error
+	}
+	for _, columnInfo := range columnInfos {
+		entities = append(entities, response.Column{
+			ColumnName: columnInfo.Name,
+			DataType:   columnInfo.Type,
+		})
+	}
+	return entities, err
+}