/// <summary>
/// 查找当前站点中的所有表规则
/// </summary>
/// <returns></returns>
public static List <TableRule> GetAllTables()
{
List <TableRule> allRuleList = new List <TableRule>();
#region 读取本项目
string xmlPath = AppDomain.CurrentDomain.BaseDirectory + "/DataRules.xml"; //获取本项目节点的数据规则
if (System.IO.File.Exists(xmlPath)) //如果存在,则读取规则文件
{
XElement ruleRoot = XElement.Load(xmlPath);
foreach (var tableElement in ruleRoot.Elements("Table"))
{
TableRule tempRule = new TableRule(tableElement);
allRuleList.Add(tempRule);
}
}
#endregion
#region 读取插件dll
List <Assembly> distinctAssemblies = AssemblyHelper.GetPluginAssemblies();
foreach (Assembly plugin in distinctAssemblies) //遍历插件
{
AssemblyTitleAttribute titleAttr = (AssemblyTitleAttribute)(plugin.GetCustomAttributes(typeof(AssemblyTitleAttribute), false)[0]);
string xmlUrl = titleAttr.Title + ".DataRules.xml";
Stream xmlStream = plugin.GetManifestResourceStream(xmlUrl);
if (xmlStream != null)
{
StreamReader xmlReader = new StreamReader(xmlStream);
string xmlContent = xmlReader.ReadToEnd();
XElement ruleRoot = XElement.Parse(xmlContent);
foreach (var tableElement in ruleRoot.Elements("Table"))
{
TableRule tempRule = new TableRule(tableElement);
allRuleList.Add(tempRule);
}
}
}
#endregion
return(allRuleList);
}
/// <summary>
/// 获取当前表的所有子表,即有外键到到当前表的表
/// </summary>
/// <param name="tbName"></param>
/// <returns></returns>
public static List <TableRule> GetAllForeignTables(string tbName)
{
List <TableRule> foreignTables = new List <TableRule>(); //与当前要删除表有外键关联的表
foreach (var tempTable in TableRule.GetAllTables()) //循环所有表结构
{
//判断表内字段,有存在SourceTable为当前要删除记录的表的,则记录
if (tempTable.ColumnRules.Where(t => t.SourceTable == tbName).Count() > 0)
{
foreignTables.Add(tempTable);
}
}
return(foreignTables);
}