Refer Parse(NodeValue jsonValue)
{
if (jsonValue == null)
{
return(new Refer());
}
if (jsonValue.Type == NodeValueTypes.Array)
{
return(Parse_Array(jsonValue));
}
else if (jsonValue.Type == NodeValueTypes.Dictionary)
{
Refer refer = new Refer();
Parse_Dictionary(refer, jsonValue);
return(refer);
}
else if (jsonValue.Type == NodeValueTypes.Object)
{
Refer refer = new Refer();
Parse_Object(refer, jsonValue);
return(refer);
}
else if (jsonValue.Type == NodeValueTypes.String)
{
return(Parse_String(jsonValue));
}
return(new Refer());
}
/// <summary>
/// 引用关系（NoSQL）。
/// </summary>
/// <param name="refer">引用关系。</param>
/// <param name="selfSource">主查询（表名，$self 为自动识别）</param>
/// <param name="filter">过滤器。</param>
/// <returns></returns>
public virtual ISelectCommandBuilder Refer(NoSQL.Refer refer, string selfSource = "$self", CommandReferFilterDelegate filter = null)
{
if (refer == null || (filter != null && !filter(this, refer)))
{
return(this);
}
if (string.IsNullOrEmpty(selfSource) || string.Equals(selfSource, "$self", System.StringComparison.OrdinalIgnoreCase))
{
selfSource = _tableName;
}
foreach (NoSQL.ReferEntry item in refer)
{
if (item.IsThis)
{
continue;
}
_whereBefores.Add(string.Format(" left join {0} as {1} on {1}.{2}={3}.{4}",
_dialect.PreName(PreSelfName(item.Source, selfSource), "."),
_dialect.PreName(item.Name),
_dialect.PreName(item.SourceField),
_dialect.PreName(PreSelfName(item.Target, selfSource)),
_dialect.PreName(item.TargetField, "."))
);
}
return(this);
}
/// <summary>
/// 解析
/// </summary>
/// <param name="value">仅支持string[]、string、{}、object、string(json)</param>
/// <returns></returns>
public Refer Parse(object value)
{
Refer result = value as Refer;
if (result != null)
{
return(result);
}
return(Parse(NodeValue.As(value)));
}
void Parse_Object(Refer refer, NodeValue jsonValue)
{
string[] pairs = new string[5];
foreach (System.Reflection.PropertyInfo propertyInfo in jsonValue.ValueType.GetProperties())
{
string key = propertyInfo.Name;
if (string.Equals(key, "by", StringComparison.OrdinalIgnoreCase))
{
Parse_Pairs(pairs, 3, new NodeValue(propertyInfo.GetValue(jsonValue.Value, new object[0])));
}
else
{
pairs[0] = key;
Parse_Pairs(pairs, 1, new NodeValue(propertyInfo.GetValue(jsonValue.Value, new object[0])));
}
}
refer.Add(Create_Pairs(pairs));
}
Refer Parse_Array(NodeValue jsonValue)
{
Refer result = new Refer();
foreach (object element in (System.Collections.IEnumerable)jsonValue.Value)
{
NodeValue item = new NodeValue(element);
bool b = true;
lb_Retury:
if (item.Type == NodeValueTypes.Object)
{
Parse_Object(result, item);
continue;
}
if (item.Type == NodeValueTypes.Dictionary)
{
Parse_Dictionary(result, item);
continue;
}
if (!b)
{
continue;
}
if (item.Type == NodeValueTypes.String)
{
string text = item.Value as string;
if (string.IsNullOrEmpty(text))
{
continue;
}
if (text[0] == '[' || text[0] == '{')
{
item = new NodeValue(JSON.Parse(text));
b = false;
goto lb_Retury;
}
continue;
}
}
return(result);
}
void Parse_Dictionary(Refer refer, NodeValue jsonValue)
{
string[] pairs = new string[5];
foreach (object item in (System.Collections.IEnumerable)jsonValue.Value)
{
string key = FastWrapper.Get(item, "Key") as string;
if (string.IsNullOrEmpty(key))
{
continue;
}
object value = FastWrapper.Get(item, "Value");
if (string.Equals(key, "by", StringComparison.OrdinalIgnoreCase))
{
Parse_Pairs(pairs, 3, new NodeValue(value));
}
else
{
pairs[0] = key;
Parse_Pairs(pairs, 1, new NodeValue(value));
}
}
refer.Add(Create_Pairs(pairs));
}
public ReferInstance()
{
_root = new Refer();
_asIndex = 1;
}
