private static ExplorerItem GetPropertyItem(ISessionFactory sessionFactory, IClassMetadata classMetadata, string propertyName)
{
var kind = GetKind(classMetadata, propertyName);
var propertyType = classMetadata.GetPropertyType(propertyName);
return new ExplorerItem(kind == ExplorerItemKind.Property
? string.Format("{0} ({1})", propertyName, propertyType.ReturnedClass.Name)
: propertyName,
kind,
GetIcon(sessionFactory, classMetadata, propertyName))
{
Tag = classMetadata.GetPropertyType(propertyName)
};
}
/// <summary>
/// For a given property type, containing type, and property name, return true if it should
/// be serialized and false if not. By default, value types and system types are serialized,
/// but collections and custom types are not.
/// </summary>
/// <param name="meta"></param>
/// <param name="propertyType"></param>
/// <param name="containingType"></param>
/// <param name="name"></param>
/// <returns></returns>
protected bool IsIncluded(IClassMetadata meta, Type propertyType, Type containingType, string name)
{
if (includedMembers != null && includedMembers.Contains(name))
{
return(true);
}
if (includedTypeMembers != null && includedTypeMembers.ContainsKey(containingType))
{
var list = includedTypeMembers[containingType];
if (list.Contains(name))
{
return(true);
}
}
if (meta != null && meta.GetPropertyType(name).IsAssociationType)
{
return(false);
}
if (typeof(System.Collections.IEnumerable).IsAssignableFrom(propertyType))
{
return(false);
}
return(true);
}
public static Core.Validator GetValidatorFromSession(ISessionFactory sessionFactory)
{
var allDefindedClasses = sessionFactory.GetAllClassMetadata();
Core.Validator validator = new Core.Validator();
foreach (KeyValuePair <string, IClassMetadata> pair in allDefindedClasses)
{
IClassMetadata metadata = pair.Value;
foreach (string propertyName in metadata.PropertyNames)
{
IType propertyType = metadata.GetPropertyType(propertyName);
StringType st = propertyType as StringType;
if (st != null)
{
if (st.SqlType.Length > 0)
{
validator.AddRule(Rule.For(metadata.GetMappedClass(EntityMode.Poco))
.OnMember(propertyName)
.MaxLength(st.SqlType.Length)
.Message(String.Format(
"Property {0} have a maximum length of {1}",
propertyName,
st.SqlType.Length)));
}
}
}
}
return(validator);
}
static ExplorerItemKind GetKind(IClassMetadata classMetadata, string propertyName)
{
var propertyType = classMetadata.GetPropertyType(propertyName);
return propertyType.IsCollectionType
? ExplorerItemKind.CollectionLink
: propertyType.IsAssociationType
? ExplorerItemKind.ReferenceLink
: ExplorerItemKind.Property;
}
private static ExplorerItem GetPropertyItem(IClassMetadata classMetadata, string propertyName)
{
return new ExplorerItem(string.Format("{0}", propertyName),
GetKind(classMetadata, propertyName),
GetIcon(classMetadata, propertyName))
{
Tag = classMetadata.GetPropertyType(propertyName)
};
}
static ExplorerIcon GetIcon(IClassMetadata classMetadata, string propertyName)
{
var propertyType = classMetadata.GetPropertyType(propertyName);
return propertyType.IsCollectionType
? ExplorerIcon.OneToMany
: propertyType.IsAssociationType
? ExplorerIcon.ManyToOne
: ExplorerIcon.Column;
}
private static IEnumerable<ExplorerItem> GetId(IClassMetadata classMetadata)
{
var propertyName = classMetadata.IdentifierPropertyName;
if (propertyName != null)
yield return new ExplorerItem(propertyName, ExplorerItemKind.Property, ExplorerIcon.Key)
{
Tag = classMetadata.GetPropertyType(propertyName)
};
}
void FilterLeafNode(LeafNode leafnode, IClassMetadata metadata, DetachedCriteria query)
{
if (leafnode.Name == metadata.IdentifierPropertyName)
{
FilterPrimaryKey(leafnode, metadata, query);
return;
}
var propsplit = leafnode.Name.Split('_');
var prop = propsplit.FirstOrDefault();
var mode = propsplit.LastOrDefault();
if (prop == null)
{
return;
}
if (!metadata.PropertyNames.Contains(prop))
{
return;
}
var proptype = metadata.GetPropertyType(prop);
if (proptype is EntityType)
{
var etype = (EntityType)proptype;
if (etype.IsNullable)
{
switch (leafnode.Value.ToString())
{
case "null":
query.Add(Restrictions.IsNull(prop));
SetParam(leafnode);
return;
case "notnull":
query.Add(Restrictions.IsNotNull(prop));
SetParam(leafnode);
return;
}
}
}
else
{
if (leafnode.Value.ToString() == "all")
{
return;
}
bool isconverted = FilterProperty(leafnode, proptype.ReturnedClass, query, prop, mode);
if (isconverted)
{
return;
}
Logger.Warn(string.Format("Could not convert value '{0}' to type '{1}'", leafnode.Value, proptype.ReturnedClass));
}
}
static ExplorerIcon GetIcon(ISessionFactory sessionFactory, IClassMetadata classMetadata, string propertyName)
{
var propertyType = classMetadata.GetPropertyType(propertyName);
return propertyType.IsCollectionType
? ((ICollectionPersister)sessionFactory.GetCollectionMetadata(
string.Format("{0}.{1}", classMetadata.GetMappedClass(EntityMode.Poco), propertyName)))
.IsManyToMany
? ExplorerIcon.ManyToMany
: ExplorerIcon.OneToMany
: propertyType.IsAssociationType
? ExplorerIcon.ManyToOne
: ExplorerIcon.Column;
}
/// <summary>
///
/// </summary>
/// <param name="metadata"></param>
public PersistentClassInfo(IClassMetadata metadata)
{
if (metadata == null)
throw new MissingMetadataException("The metadata info of persistent class cannot be null.");
this.metadata = metadata;
this.properties = new HashSet<IPropertyInfo>();
try
{
string idName = metadata.IdentifierPropertyName;
IType type = metadata.GetPropertyType(idName);
this.identifier = new PropertyMapInfo(type, idName);
}
catch (Exception)
{
//metadata.GetPropertyValuesToInsert()
}
metadata.PropertyNames.All
(
property =>
{
try
{
IType type = metadata.GetPropertyType(property);
PropertyMapInfo current = new PropertyMapInfo(type, property);
properties.Add(current);
}
catch (Exception)
{
//
}
return true;
}
);
}
protected List <TreeNode> GetTreeNodes(IClassMetadata classMetadata, Identifier identifier)
{
List <TreeNode> result = new List <TreeNode>();
// Add special ratio names in order after the default ratio name
int lastRatioIndex = -1;
foreach (String propertyName in classMetadata.PropertyNames)
{
IType propertyType = classMetadata.GetPropertyType(propertyName);
if (propertyType is ManyToOneType)
{
continue;
}
var label = propertyName;
bool isRatio = RatioPropertyAccessor.IsRatioOrRdotpProperty(label);
if (isRatio)
{
label = RatioPropertyAccessor.GetDisplayName(label);
}
else if (AnnotationDef.IsAnnotationProperty(label))
{
label = AnnotationDef.GetColumnDisplayName(label);
}
else if (label.IndexOf("Ratio", StringComparison.Ordinal) != -1) // Not L10N: Label is only used in this file. Never displayed.
{
lastRatioIndex = result.Count;
}
var columnInfo = CreateColumnInfo(identifier, classMetadata, propertyName);
if (columnInfo.IsHidden)
{
continue;
}
TreeNode propertyNode
= new TreeNode
{
Name = propertyName,
Text = label,
Tag = columnInfo
};
if (isRatio && lastRatioIndex != -1)
{
result.Insert(++lastRatioIndex, propertyNode);
}
else
{
result.Add(propertyNode);
}
}
return(result);
}
public Dictionary <string, int> GetStringFieldLengths()
{
Dictionary <string, int> temp = new Dictionary <string, int>();
IClassMetadata metadata = _sessionFactory.GetClassMetadata(typeof(T));
foreach (string propertyName in metadata.PropertyNames)
{
IType propertyType = metadata.GetPropertyType(propertyName);
StringType st = propertyType as StringType;
if (st != null && st.SqlType.Length > 0)
{
temp.Add(propertyName, st.SqlType.Length);
}
}
return(temp);
}
void RangeLeafNode(LeafNode node, IClassMetadata metadata)
{
var proptree = node.FullName.SplitAndTrim(".").Skip(1).ToList();
if (proptree.IsEmpty())
{
return;
}
var prop = proptree.LastOrDefault();
if (prop == null || prop.Length < 3)
{
return;
}
var mod = prop.SplitAndTrim("_").LastOrDefault();
var propfield = prop.Substring(0, prop.Length - 3);
proptree[proptree.Count - 1] = propfield;
var field = proptree.Join(".");
var type = metadata.PropertyNames.Contains(propfield)
? metadata.GetPropertyType(propfield).ReturnedClass
: GuessType(node);
if (type == null)
{
return;
}
switch (mod)
{
case "gt":
case "ge":
RegisterRange(field, node.Value.ToString(), null, type);
break;
case "lt":
case "le":
RegisterRange(field, null, node.Value.ToString(), type);
break;
}
Querystring[node.FullName.SplitAndTrim(".").Skip(1).Join(".")] = node.Value.ToString();
}
void FilterCompositeNode(CompositeNode compositenode, IClassMetadata metadata, DetachedCriteria query)
{
if (!metadata.PropertyNames.Contains(compositenode.Name))
{
return;
}
var proptype = metadata.GetPropertyType(compositenode.Name);
if (proptype is EntityType)
{
var etype = (EntityType)proptype;
var childmetadata = AR.Holder.GetClassMetadata(etype.ReturnedClass);
var childcriteria = _childCriterias.TryGet(compositenode.Name, () => query.CreateCriteria(compositenode.Name, JoinType.LeftOuterJoin));
foreach (var childnode in compositenode.ChildNodes)
{
RecursiveFilter(childcriteria, childnode, childmetadata);
}
}
else if (proptype is CollectionType)
{
var ctype = (CollectionType)proptype;
var reltype = ctype.ReturnedClass.GetGenericArguments().FirstOrDefault();
var childmetadata = AR.Holder.GetClassMetadata(reltype);
if (childmetadata == null)
{
return;
}
var persister = SessionFactory.GetCollectionMetadata(ctype.Role) as ICollectionPersister;
if (persister == null)
{
return;
}
if (persister.IsOneToMany)
{
}
else if (persister.IsManyToMany)
{
}
}
}
void FilterCompositeNode(CompositeNode node, IClassMetadata metadata)
{
if (!metadata.PropertyNames.Contains(node.Name))
{
return;
}
var proptype = metadata.GetPropertyType(node.Name);
if (proptype is EntityType)
{
var childmetadata = AR.Holder.GetClassMetadata(proptype.ReturnedClass);
foreach (var childNode in node.ChildNodes)
{
RecursiveFilter(node, childNode, childmetadata);
}
}
else if (proptype is CollectionType)
{
var ctype = (CollectionType)proptype;
var reltype = ctype.ReturnedClass.GetGenericArguments().FirstOrDefault();
if (reltype == null)
{
return;
}
var childmetadata = AR.Holder.GetClassMetadata(reltype);
if (childmetadata == null)
{
return;
}
foreach (var childnode in node.ChildNodes)
{
RecursiveFilter(node, childnode, childmetadata);
}
}
}
/// <summary>
/// For a given property type, containing type, and property name, return true if it should
/// be serialized and false if not. By default, value types and system types are serialized,
/// but collections and custom types are not.
/// </summary>
/// <param name="meta"></param>
/// <param name="propertyType"></param>
/// <param name="containingType"></param>
/// <param name="name"></param>
/// <returns></returns>
protected bool IsIncluded(IClassMetadata meta, Type propertyType, Type containingType, string name)
{
if (includedMembers != null && includedMembers.Contains(name)) return true;
if (includedTypeMembers != null && includedTypeMembers.ContainsKey(containingType))
{
var list = includedTypeMembers[containingType];
if (list.Contains(name)) return true;
}
if (meta != null && meta.GetPropertyType(name).IsAssociationType) return false;
if (typeof(System.Collections.IEnumerable).IsAssignableFrom(propertyType)) return false;
return true;
}
/// <summary>
/// Add the Fetch clauses to the query according to the given expand paths
/// </summary>
/// <param name="queryable">The query to expand</param>
/// <param name="expandPaths">The names of the properties to expand. May include nested paths of the form "Property/SubProperty"</param>
/// <param name="sessionFactory">Provides the NHibernate metadata for the classes</param>
/// <param name="expandMap">Will be populated with the names of the expanded properties for each type.</param>
/// <param name="expandCollections">If true, eagerly fetch collections. Caution: this causes problems with $skip and $top operations.
/// Default is false. expandMap will still be populated with the collection property, so it will be lazy loaded.
/// Be sure to set default_batch_fetch_size in the configuration for lazy loaded collections.</param>
/// <returns></returns>
public IQueryable ApplyExpansions(IQueryable queryable, string[] expandPaths, ExpandTypeMap expandMap, bool expandCollections = false)
{
if (queryable == null)
{
throw new ArgumentException("Query cannot be null");
}
var nHibQuery = queryable.Provider as DefaultQueryProvider;
if (nHibQuery == null)
{
throw new ArgumentException("Expansion only supported on INHibernateQueryable queries");
}
if (!expandPaths.Any())
{
throw new ArgumentException("Expansion Paths cannot be null");
}
var currentQueryable = queryable;
foreach (string expand in expandPaths)
{
// We always start with the resulting element type
var currentType = currentQueryable.ElementType;
var isFirstFetch = true;
var isInvoking = true;
// split on '/' or '.'
var segments = expand.Split('/', '.');
expandMap.Deepen(segments.Length);
foreach (string seg in segments)
{
if (expandMap != null && !expandMap.map.ContainsKey(currentType))
{
expandMap.map.Add(currentType, new List <string>());
}
IClassMetadata metadata = sessionFactory.GetClassMetadata(currentType);
if (metadata == null)
{
throw new ArgumentException("Type '" + currentType + "' not recognized as a valid type for this Context");
}
// Gather information about the property
var propInfo = currentType.GetProperty(seg);
if (propInfo == null)
{
throw new ArgumentException("Type '" + currentType.Name + "' does not have property '" + seg + "'");
}
if (expandMap != null && !expandMap.map[currentType].Contains(seg))
{
expandMap.map[currentType].Add(seg);
}
var propType = propInfo.PropertyType;
var metaPropType = metadata.GetPropertyType(seg);
// When this is the first segment of a path, we have to use Fetch instead of ThenFetch
var propFetchFunctionName = (isFirstFetch ? "Fetch" : "ThenFetch");
// The delegateType is a type for the lambda creation to create the correct return value
System.Type delegateType;
if (metaPropType.IsCollectionType)
{
// We have to use "FetchMany" or "ThenFetchMany" when the target property is a collection
propFetchFunctionName += "Many";
// We only support IList<T> or something similar
propType = propType.GetGenericArguments().Single();
delegateType = typeof(Func <,>).MakeGenericType(currentType,
typeof(IEnumerable <>).MakeGenericType(propType));
if (!expandCollections)
{
// if we don't expand this collection, we won't invoke any sub-expansions of it either
// but we still need to traverse the tree top populate expandMap
isInvoking = false;
}
}
else
{
delegateType = typeof(Func <,>).MakeGenericType(currentType, propType);
}
if (isInvoking)
{
// Get the correct extension method (Fetch, FetchMany, ThenFetch, or ThenFetchMany)
var fetchMethodInfo = typeof(EagerFetchingExtensionMethods).GetMethod(propFetchFunctionName,
BindingFlags.Static |
BindingFlags.Public |
BindingFlags.InvokeMethod);
var fetchMethodTypes = new List <System.Type>();
fetchMethodTypes.AddRange(currentQueryable.GetType().GetGenericArguments().Take(isFirstFetch ? 1 : 2));
fetchMethodTypes.Add(propType);
fetchMethodInfo = fetchMethodInfo.MakeGenericMethod(fetchMethodTypes.ToArray());
// Create an expression of type new delegateType(x => x.{seg.Name})
var exprParam = System.Linq.Expressions.Expression.Parameter(currentType, "x");
var exprProp = System.Linq.Expressions.Expression.Property(exprParam, seg);
var exprLambda = System.Linq.Expressions.Expression.Lambda(delegateType, exprProp,
new System.Linq.Expressions.
ParameterExpression[] { exprParam });
// Call the *Fetch* function
var args = new object[] { currentQueryable, exprLambda };
currentQueryable = (IQueryable)fetchMethodInfo.Invoke(null, args) as IQueryable;
}
currentType = propType;
isFirstFetch = false;
}
}
return(currentQueryable);
}
protected List<TreeNode> GetTreeNodes(IClassMetadata classMetadata, Identifier identifier)
{
List<TreeNode> result = new List<TreeNode>();
// Add special ratio names in order after the default ratio name
int lastRatioIndex = -1;
foreach (String propertyName in classMetadata.PropertyNames)
{
IType propertyType = classMetadata.GetPropertyType(propertyName);
if (propertyType is ManyToOneType)
{
continue;
}
var label = propertyName;
bool isRatio = RatioPropertyAccessor.IsRatioOrRdotpProperty(label);
if (isRatio)
label = RatioPropertyAccessor.GetDisplayName(label);
else if (AnnotationDef.IsAnnotationProperty(label))
label = AnnotationDef.GetColumnDisplayName(label);
else if (label.IndexOf("Ratio", StringComparison.Ordinal) != -1) // Not L10N: Label is only used in this file. Never displayed.
lastRatioIndex = result.Count;
var columnInfo = CreateColumnInfo(identifier, classMetadata, propertyName);
if (columnInfo.IsHidden)
{
continue;
}
TreeNode propertyNode
= new TreeNode
{
Name = propertyName,
Text = label,
Tag = columnInfo
};
if (isRatio && lastRatioIndex != -1)
result.Insert(++lastRatioIndex, propertyNode);
else
result.Add(propertyNode);
}
return result;
}
/// <summary>
/// 查找用户是否包含属性
/// </summary>
/// <param name="propertyName">属性名</param>
/// <returns></returns>
public bool CheckEntityHasProperty(string propertyName)
{
IClassMetadata classMetadata = GetClassMetadata();
return(classMetadata.GetPropertyType(propertyName) != null);
}
