public RelationLinkType TryAddField(SingleRelationFieldMapping relateMapping)
{
var last = items[items.Count - 1];
if (!Equals(relateMapping.MasterMapping, last.DataMapping))
{
throw new LightDataException(string.Format(SR.RelationFieldError, relateMapping.MasterMapping.ObjectType, relateMapping.FieldName));
}
var keys = relateMapping.GetKeyPairs();
if (keys.Length != keyCount)
{
return(RelationLinkType.NoMatch);
}
var masters = new string[keyCount];
var relates = new string[keyCount];
for (var i = 0; i < keyCount; i++)
{
masters[i] = keys[i].MasterKey;
relates[i] = keys[i].RelateKey;
}
if (!IsMatch(last.Keys, masters))
{
return(RelationLinkType.NoMatch);
}
PrevFieldPath = LastFieldPath;
LastFieldPath = $"{last.CurrentFieldPath}.{relateMapping.FieldName}";
var len = items.Count - 1;
for (var i = 0; i < len; i++)
{
var item = items[i];
if (Equals(relateMapping.RelateMapping, item.DataMapping))
{
if (IsMatch(item.Keys, relates))
{
CycleFieldPath = item.CurrentFieldPath;
return(RelationLinkType.Cycle);
}
throw new LightDataException(string.Format(SR.RelationFieldKeyNotMatch, relateMapping.MasterMapping.ObjectType, relateMapping.FieldName));
}
}
var relateItem = new RelationItem
{
DataMapping = relateMapping.RelateMapping,
FieldMapping = relateMapping,
PrevFieldPath = PrevFieldPath,
CurrentFieldPath = LastFieldPath,
Keys = relates
};
items.Add(relateItem);
return(RelationLinkType.AddLink);
}
public RelationLinkType TryAddField(SingleRelationFieldMapping relateMapping)
{
RelationItem last = items[items.Count - 1];
if (!Object.Equals(relateMapping.MasterMapping, last.DataMapping))
{
throw new LightDataException(string.Format(SR.RelationFieldError, relateMapping.MasterMapping.ObjectType, relateMapping.FieldName));
}
RelationKey[] keys = relateMapping.GetKeyPairs();
if (keys.Length != keyCount)
{
return(RelationLinkType.NoMatch);
}
string[] masters = new string[this.keyCount];
string[] relates = new string[this.keyCount];
for (int i = 0; i < this.keyCount; i++)
{
masters[i] = keys[i].MasterKey;
relates[i] = keys[i].RelateKey;
}
if (!IsMatch(last.Keys, masters))
{
return(RelationLinkType.NoMatch);
}
prevFieldPath = lastFieldPath;
lastFieldPath = string.Format("{0}.{1}", last.CurrentFieldPath, relateMapping.FieldName);
int len = items.Count - 1;
for (int i = 0; i < len; i++)
{
RelationItem item = items[i];
if (Object.Equals(relateMapping.RelateMapping, item.DataMapping))
{
if (IsMatch(item.Keys, relates))
{
cycleFieldPath = item.CurrentFieldPath;
return(RelationLinkType.Cycle);
}
else
{
throw new LightDataException(string.Format(SR.RelationFieldKeyNotMatch, relateMapping.MasterMapping.ObjectType, relateMapping.FieldName));
}
}
}
RelationItem relateItem = new RelationItem()
{
DataMapping = relateMapping.RelateMapping,
FieldMapping = relateMapping,
PrevFieldPath = prevFieldPath,
CurrentFieldPath = lastFieldPath,
Keys = relates
};
items.Add(relateItem);
return(RelationLinkType.AddLink);
}
public RelationLink(SingleRelationFieldMapping rootRelationMapping, string fieldPath)
{
if (rootRelationMapping == null)
{
throw new ArgumentNullException(nameof(rootRelationMapping));
}
//this.rootRelationMapping = rootRelationMapping;
var keys = rootRelationMapping.GetKeyPairs();
keyCount = keys.Length;
var masters = new string[keyCount];
var relates = new string[keyCount];
for (var i = 0; i < keyCount; i++)
{
masters[i] = keys[i].MasterKey;
relates[i] = keys[i].RelateKey;
}
LastFieldPath = $"{fieldPath}.{rootRelationMapping.FieldName}";
PrevFieldPath = fieldPath;
var masterItem = new RelationItem
{
DataMapping = rootRelationMapping.MasterMapping,
FieldMapping = null,
//PrevFieldPath = prevFieldPath,
CurrentFieldPath = PrevFieldPath,
Keys = masters
};
var relateItem = new RelationItem
{
DataMapping = rootRelationMapping.RelateMapping,
FieldMapping = rootRelationMapping,
PrevFieldPath = PrevFieldPath,
CurrentFieldPath = LastFieldPath,
Keys = relates
};
items.Add(masterItem);
items.Add(relateItem);
}
public RelationLink(SingleRelationFieldMapping rootRelationMapping, string fieldPath)
{
if (rootRelationMapping == null)
{
throw new ArgumentNullException(nameof(rootRelationMapping));
}
//this.rootRelationMapping = rootRelationMapping;
RelationKey[] keys = rootRelationMapping.GetKeyPairs();
this.keyCount = keys.Length;
string[] masters = new string[this.keyCount];
string[] relates = new string[this.keyCount];
for (int i = 0; i < this.keyCount; i++)
{
masters[i] = keys[i].MasterKey;
relates[i] = keys[i].RelateKey;
}
lastFieldPath = string.Format("{0}.{1}", fieldPath, rootRelationMapping.FieldName);
prevFieldPath = fieldPath;
RelationItem masterItem = new RelationItem()
{
DataMapping = rootRelationMapping.MasterMapping,
FieldMapping = null,
//PrevFieldPath = prevFieldPath,
CurrentFieldPath = prevFieldPath,
Keys = masters
};
RelationItem relateItem = new RelationItem()
{
DataMapping = rootRelationMapping.RelateMapping,
FieldMapping = rootRelationMapping,
PrevFieldPath = prevFieldPath,
CurrentFieldPath = lastFieldPath,
Keys = relates
};
items.Add(masterItem);
items.Add(relateItem);
}
void LoadJoinRelate()
{
LoadEntityMapping(this.rootMapping, null);
JoinSelector joinSelector = new JoinSelector();
List <RelationItem> items = new List <RelationItem>();
Dictionary <string, RelationItem> relationItemDict = new Dictionary <string, RelationItem>();
int tindex = 0;
foreach (RelationLink link in linkList)
{
RelationItem[] sitems = link.GetRelationItems();
foreach (RelationItem item in sitems)
{
if (!items.Contains(item))
{
if (item.FieldMapping == null && tindex != 0)
{
continue;
}
item.AliasName = "T" + tindex;
tindex++;
items.Add(item);
relationItemDict.Add(item.CurrentFieldPath, item);
}
}
}
//if (this.rootMapping != items [0].DataMapping) {
// throw new LightDataException (RE.RelationMapEntityMappingError);
//}
RelationItem rootItem = items[0];
mapDict.Add(items[0].CurrentFieldPath, items[0]);
List <DataFieldInfo> rootInfoList = new List <DataFieldInfo>();
foreach (DataFieldMapping field in this.rootMapping.DataEntityFields)
{
DataFieldInfo info = new DataFieldInfo(field);
string aliasName = string.Format("{0}_{1}", rootItem.AliasName, info.FieldName);
AliasDataFieldInfo alias = new AliasDataFieldInfo(info, aliasName, rootItem.AliasName);
//alias.AliasTablesName = rootItem.AliasName;
joinSelector.SetAliasDataField(alias);
rootInfoList.Add(alias);
fieldInfoDict.Add(string.Format("{0}.{1}", items[0].CurrentFieldPath, field.IndexName), alias);
}
tableInfoDict.Add(items[0].CurrentFieldPath, rootInfoList.ToArray());
for (int i = 1; i < items.Count; i++)
{
RelationItem mitem = items[i];
mapDict.Add(mitem.CurrentFieldPath, mitem);
SingleRelationFieldMapping fieldMapping = mitem.FieldMapping;
DataEntityMapping mapping = fieldMapping.RelateMapping;
DataFieldExpression expression = null;
//DataFieldInfoRelation [] relations = fieldMapping.GetDataFieldInfoRelations ();
RelationItem ritem = mapDict[mitem.PrevFieldPath];
string malias = ritem.AliasName;
string ralias = mitem.AliasName;
DataFieldInfoRelation[] relations = fieldMapping.CreateDataFieldInfoRelations(malias, ralias);
foreach (DataFieldInfoRelation relation in relations)
{
DataFieldInfo minfo = relation.MasterInfo;
//minfo.AliasTableName = malias;
DataFieldInfo rinfo = relation.RelateInfo;
//rinfo.AliasTableName = ralias;
DataFieldMatchExpression keyExpression = new DataFieldMatchExpression(minfo, rinfo, QueryPredicate.Eq);
expression = DataFieldExpression.And(expression, keyExpression);
//expression = DataFieldExpression.And (expression, minfo == rinfo);
}
List <DataFieldInfo> infoList = new List <DataFieldInfo>();
foreach (DataFieldMapping field in mapping.DataEntityFields)
{
DataFieldInfo info = new DataFieldInfo(field);
string aliasName = string.Format("{0}_{1}", ralias, info.FieldName);
AliasDataFieldInfo alias = new AliasDataFieldInfo(info, aliasName, ralias);
//alias.AliasTableName = ralias;
joinSelector.SetAliasDataField(alias);
infoList.Add(alias);
fieldInfoDict.Add(string.Format("{0}.{1}", mitem.CurrentFieldPath, field.Name), alias);
}
tableInfoDict.Add(mitem.CurrentFieldPath, infoList.ToArray());
JoinConnect connect = new JoinConnect(JoinType.LeftJoin, expression);
EntityJoinModel model = new EntityJoinModel(mapping, ralias, connect, null, null, JoinSetting.None);
this.selector = joinSelector;
this.models.Add(model);
}
}