public static string GetDefaultConnectionName()
{
var tableFeature = new string[] { "sys_button", "sys_code", "sys_codeType", "sys_log", "sys_loginHistory", "sys_roleMenuColumnMap", "sys_user", "sys_menu" };
IDbContext db = null;
Configuration config = WebConfigurationManager.OpenWebConfiguration("~/");
foreach (ConnectionStringSettings item in config.ConnectionStrings.ConnectionStrings)
{
var provider = Db.Provider(item.ProviderName);
if (provider == null)
continue;
//特征检测
db = new DbContext().ConnectionString(item.ConnectionString, provider);
var sql = string.Empty;
switch (item.ProviderName)
{
case "SqlServer":
sql = string.Format("select name from dbo.sysobjects where name in ('{0}')", string.Join("','", tableFeature));
break;
case "MySql":
sql = string.Format("select TABLE_NAME as TableName from information_schema.TABLES where TABLE_SCHEMA= database() and TABLE_NAME in ('{0}')", string.Join("','", tableFeature));
break;
}
if (string.IsNullOrEmpty(sql))
continue;
var result = db.Sql(sql).QueryMany<dynamic>();
if (result.Count == tableFeature.Length)
return item.Name;
}
return string.Empty;
}
public static List<Table> GetTables(string dbType,string conString)
{
var gen = GetGenProvider(dbType);
var provider = GetProvider(dbType);
using (var db = new DbContext().ConnectionString(conString, provider))
{
var Tables = db.Sql(gen.SqlGetTableNames()).QueryMany<Table>();
foreach (var T in Tables)
{
T.TableKeys = db.Sql(gen.SqlGetTableKeys(T.TableName)).QueryMany<TableKey>().Select<TableKey, string>(x => x.column_name).ToList<string>();
T.TableSchemas = db.Sql(gen.SqlGetTableSchemas(T.TableName)).QueryMany<TableSchema>();
}
return Tables;
}
}
public string Execute()
{
var provider = Db.Provider(providerName);
var dbexist = TestConnectionString();
var db = new DbContext().ConnectionString(GetDefaultConnectionString(), provider);
//如果数据库不存在，则创建数据库
if (!dbexist)
{
try
{
db.Sql(GetScriptCreateDatabase()).Execute();
}
catch (Exception e)
{
db.Dispose();
return e.Message;
}
}
try
{
//开启事务
db.UseTransaction(true);
db.CommandTimeout(60);
//创建表结构
var createScript = GetScriptCreateTable();
if (!string.IsNullOrEmpty(createScript))
db.Sql(GetScriptUseDatabase() + createScript).Execute();
//初始化数据
var dataScript = GetScriptInsertData();
if (!string.IsNullOrEmpty(createScript))
db.Sql(GetScriptUseDatabase() + dataScript).Execute();
db.Commit();
}
catch (Exception e)
{
try
{
db.Rollback();
db.UseTransaction(false);
}
catch{ }
//处理失败，删除刚刚创建的数据库
if (!dbexist)
db.Sql(GetScriptDropDatabase()).Execute();
return e.Message;
}
finally
{
db.Dispose();
}
return string.Empty;
}