/// <summary>
/// 获取建表sql
/// </summary>
/// <param name="tabDefine"></param>
/// <returns></returns>
public override string CreateTableSql(MetaClassDefine cls)
{
StringBuilder sb = new StringBuilder();
sb.Append("Create table ");
sb.AppendLine(cls.Name);
sb.AppendLine("(");
for (int i = 0; i < cls.Properties.Count; i++)
{
sb.Append(CreateTableCol(cls.Properties[i]));
if (i != cls.Properties.Count)
{
sb.AppendLine(",");
}
}
sb.Append(")");
return(sb.ToString());
}
/// <summary>
/// 获取类的对象的查询sql
/// </summary>
/// <param name="cls"></param>
/// <returns></returns>
public override string GetClassObjectSql(MetaClassDefine cls)
{
StringBuilder sbCols = new StringBuilder();
StringBuilder sbTabs = new StringBuilder();
var tbs = new List <string>();
sbTabs.Append("From ");
sbTabs.AppendLine(cls.TableName);
sbTabs.AppendLine(" t1");
sbCols.Append("select ");
tbs.Add(cls.TableName);
for (var i = 0; i < cls.Properties.Count; i++)
{
var p = cls.Properties[i];
if (p.IsUsing)
{
tbs.Add(p.UsingClass.TableName);
var curTbName = "t" + tbs.Count;
sbTabs.Append(" INNER JOIN ");
sbTabs.Append(p.UsingClass.TableName);
sbTabs.Append(" " + curTbName);
sbTabs.AppendFormat(" on {0}.{1}={2}.{3}",
"t1",
p.Name,
curTbName,
p.UsingProperty.Name
);
sbCols.AppendFormat(" {0}.{1} as {2}", curTbName, p.UsingProperty.ColName, p.UsingProperty.Name);
if (i != cls.Properties.Count)
{
sbCols.AppendLine(" , ");
}
}
else
{
sbCols.AppendFormat(" t1.{0} as {1}", p.UsingProperty.ColName, p.Name);
}
}
return(sbCols.ToString() + sbTabs.ToString());
}
public abstract string CreateTableSql(MetaClassDefine classDefine);
public void SaveClassDefine(MetaClassDefine classdefine)
{
}
public abstract string GetClassObjectSql(MetaClassDefine classDefine);
