public static string CreatJoinSql(Join join, Func <string, ColumnInfo> createColumnInfo)
{
return(CreatJoinSql(join, join.JoinInfo.Member.ToDictionary(jc => jc.Key.Field, jc => jc.Value.Field), createColumnInfo));
}
/// <summary>
///
/// </summary>
/// <param name="columns"></param>
/// <param name="root"></param>
/// <returns></returns>
protected static Dictionary <string, ColumnInfo> Create(IEnumerable <string> columns, ClassInfo root, Func <string, ColumnInfo> createColumnInfo, Func <string, ClassNode, ClassInfo> createClassInfo)
{
var result = new Dictionary <string, ColumnInfo>();
var joinDic = new Dictionary <string, Join>();
foreach (var item in columns)
{
if (result.ContainsKey(item))
{
continue;
}
var columnInfo = createColumnInfo(item);
var temp = item;
if (!item.Equals("count(0)", StringComparison.OrdinalIgnoreCase))
{
var match = Regex.Match(item, @"(?'name'.+)\((?'property'.+)\)");
if (match.Success)
{
temp = match.Groups["property"].Value;
columnInfo._aggregateFunctionName = match.Groups["name"].Value;
}
}
var array = temp.Split('.');
var key = string.Empty;
var host = root;
Join parent = null;
for (int i = 0; i < array.Length;)
{
var property = array[i];
var joinInfo = host.ClassNode.JoinList.FirstOrDefault(p => p.Name.Equals(property, System.StringComparison.OrdinalIgnoreCase));
if (joinInfo == null && host.ClassNode.BaseClassNode != null)
{
joinInfo = FindProperty(host.ClassNode.BaseClassNode, property);
if (joinInfo != null)
{
property = host.ClassNode.BaseClassNode.Name;
joinInfo = host.ClassNode.JoinList.FirstOrDefault(p => p.Name.Equals(property, System.StringComparison.OrdinalIgnoreCase));
i--;
}
}
if (joinInfo == null) //不是导航属性，就当它是普通属性
{
List <JoinPropertyNode> parents;
columnInfo._classInfo = host;
columnInfo._field = property;
if (IsParentProperty(host.ClassNode, 0, property, out parents)) //搞定继承的问题
{
parents.Reverse();
var last = AddJoin(joinDic, parent, host, parents[0].Name, parents, createClassInfo);
columnInfo._join = last;
//columnInfo._subAsName = host.AsName;
columnInfo._home = host;
columnInfo._classInfo = last.Target;
}
break;
}
if (string.IsNullOrEmpty(key))
{
key = property;
}
else
{
key += "." + property;
}
if (!joinDic.ContainsKey(key))
{
var join = new Join(parent, host);
join.JoinInfo = joinInfo;
join.Target = createClassInfo("J", joinInfo.Target);
host = join.Target;
parent = join;
columnInfo._join = join;
joinDic.Add(key, join);
}
else
{
var join = joinDic[key];
columnInfo._join = join;
parent = join;
host = join.Target;
}
i++;
}
if (columnInfo != null)
{
result.Add(item, columnInfo);
}
}
return(result);
}
