/// <summary>
/// Creates properties for the given <see cref="JsonContract"/>.
/// </summary>
/// <param name="type">The type to create properties for.</param>
/// /// <param name="memberSerialization">The member serialization mode for the type.</param>
/// <returns>Properties for the given <see cref="JsonContract"/>.</returns>
protected override IList <JsonProperty> CreateProperties(Type type, MemberSerialization memberSerialization)
{
var members = GetSerializableMembers(type);
if (members == null)
{
throw new JsonSerializationException("Null collection of seralizable members returned.");
}
var properties = new JsonPropertyCollection(type);
var modelConfiguration = _breezeConfigurator.GetModelConfiguration(type);
foreach (var member in members)
{
var property = CreateProperty(type, member, memberSerialization, modelConfiguration);
if (property != null)
{
var nameTable = DefaultContractResolverStateNameTableField.GetValue(this);
// nametable is not thread-safe for multiple writers
lock (nameTable)
{
property.PropertyName = (string)PropertyNameTableAddMethod
.Invoke(nameTable, new object[] { property.PropertyName });
}
properties.AddProperty(property);
}
}
var syntheticPoperties = _getMetadataFunc(type).GetSyntheticProperties();
if (syntheticPoperties != null && syntheticPoperties.Any())
{
foreach (var syntheticProp in syntheticPoperties)
{
var propertyName = ResolvePropertyName(syntheticProp.Name);
// Skip manually added syntetic properties
if (!properties.Any(x => x.PropertyName == propertyName))
{
properties.Add(new JsonProperty
{
Readable = true,
Writable = true,
PropertyName = propertyName,
PropertyType = syntheticProp.PkType.ReturnedClass,
ValueProvider = new NHSyntheticPropertyValueProvider(syntheticProp)
});
}
}
}
IList <JsonProperty> orderedProperties = properties.OrderBy(p => p.Order ?? -1).ToList();
ApplySerializationRules(type, orderedProperties, memberSerialization);
return(orderedProperties);
}
/// <summary>
/// Refresh the entities from the database. This picks up changes due to triggers, etc.
/// </summary>
/// <param name="saveMap"></param>
protected void RefreshFromSession(Dictionary <Type, List <EntityInfo> > saveMap)
{
//using (var tx = session.BeginTransaction()) {
foreach (var kvp in saveMap)
{
var config = breezeConfigurator.GetModelConfiguration(kvp.Key);
if (!config.RefreshAfterSave && !config.RefreshAfterUpdate)
{
continue;
}
foreach (var entityInfo in kvp.Value)
{
if ((entityInfo.EntityState == EntityState.Added && config.RefreshAfterSave) || (entityInfo.EntityState == EntityState.Modified && config.RefreshAfterUpdate))
{
session.Refresh(entityInfo.Entity);
}
}
}
//tx.Commit();
//}
}
private void AddEntityType(
EntityMetadata entityMetadata,
BreezeMetadata metadata)
{
var type = entityMetadata.Type;
var modelConfiguration = _breezeConfigurator.GetModelConfiguration(type);
var entityType = new EntityType(type)
{
BaseTypeName = entityMetadata.BaseType != null
? GetBreezeTypeFullName(entityMetadata.BaseType)
: null,
AutoGeneratedKeyType = modelConfiguration.AutoGeneratedKeyType ?? entityMetadata.AutoGeneratedKeyType,
DefaultResourceName = modelConfiguration.ResourceName ?? Pluralize(type.Name),
Custom = modelConfiguration.Custom
};
metadata.ResourceEntityTypeMap.Add(entityType.DefaultResourceName, GetBreezeTypeFullName(type));
AddProperties(entityMetadata, entityType, modelConfiguration, metadata);
metadata.StructuralTypes.Add(entityType);
}
private bool SetupEntityInfoForSaving(Type entityType, EntityInfo entityInfo, IClassMetadata meta)
{
var id = meta.GetIdentifier(entityInfo.Entity);
var sessionImpl = _session.GetSessionImplementation();
object dbEntity;
string[] propNames;
if (entityInfo.EntityState == EntityState.Added)
{
//meta.Instantiate(id) -> Instantiate method can create a proxy when formulas are present. Saving non persistent proxies will throw an exception
dbEntity = Activator.CreateInstance(entityType, true);
meta.SetIdentifier(dbEntity, id);
}
else
{
//dbEntity = session.Get(entityType, id); Get is not good as it can return a proxy
if (meta.IdentifierType.IsComponentType)
{
// for entities with composite key the identifier is the entity itself
// we need to create a copy as ImmediateLoad will fill the given entity
var componentType = (ComponentType)meta.IdentifierType;
dbEntity = Activator.CreateInstance(entityType, true);
// We need to check if the primary key was changed
var oldKeyValues = new object[componentType.PropertyNames.Length];
var keyModified = false;
for (var i = 0; i < componentType.PropertyNames.Length; i++)
{
var propName = componentType.PropertyNames[i];
if (entityInfo.OriginalValuesMap.ContainsKey(propName))
{
oldKeyValues[i] = entityInfo.OriginalValuesMap[propName];
keyModified = true;
}
else
{
oldKeyValues[i] = componentType.GetPropertyValue(entityInfo.Entity, i);
}
}
componentType.SetPropertyValues(dbEntity, oldKeyValues);
dbEntity = sessionImpl.ImmediateLoad(entityType.FullName, dbEntity);
// As NHibernate does not support updating the primary key we need to do it manually using hql
if (keyModified)
{
var newKeyValues = componentType.GetPropertyValues(entityInfo.Entity);
var parameters = new Dictionary <string, KeyValuePair <object, IType> >();
var setStatement = "set ";
var whereStatement = "where ";
for (var i = 0; i < componentType.PropertyNames.Length; i++)
{
if (i > 0)
{
setStatement += ", ";
whereStatement += " and ";
}
var propName = componentType.PropertyNames[i];
var paramName = string.Format("new{0}", propName);
setStatement += string.Format("{0}=:{1}", propName, paramName);
parameters.Add(paramName, new KeyValuePair <object, IType>(newKeyValues[i], componentType.Subtypes[i]));
paramName = string.Format("old{0}", propName);
whereStatement += string.Format("{0}=:{1}", propName, paramName);
parameters.Add(paramName, new KeyValuePair <object, IType>(oldKeyValues[i], componentType.Subtypes[i]));
}
var updateQuery = sessionImpl.CreateQuery(new StringQueryExpression(string.Format("update {0} {1} {2}", entityType.Name, setStatement, whereStatement)));
foreach (var pair in parameters)
{
updateQuery.SetParameter(pair.Key, pair.Value.Key, pair.Value.Value);
}
var count = updateQuery.ExecuteUpdate();
if (count != 1)
{
throw new InvalidOperationException(string.Format("Query for updating composite key updated '{0}' rows instead of '1'", count));
}
componentType.SetPropertyValues(dbEntity, componentType.GetPropertyValues(entityInfo.Entity));
}
}
else
{
dbEntity = sessionImpl.ImmediateLoad(entityType.FullName, id);
}
//dbEntity = session.Get(entityType, id, LockMode.None);
}
if (dbEntity == null)
{
throw new NullReferenceException(string.Format("Entity of type '{0}' with id '{1}' does not exists in database",
entityType.FullName, id));
}
//var modelConfig = BreezeModelConfigurator.GetModelConfiguration(entityType);
//Save the original client object
_clientEntityObjects[entityInfo] = entityInfo.Entity;
//We have to set the properties from the client object
propNames = meta.PropertyNames;
var propTypes = meta.PropertyTypes;
var config = _breezeConfigurator.GetModelConfiguration(entityType);
// TODO: set only modified properties
for (var i = 0; i < propNames.Length; i++)
{
var propType = propTypes[i];
var propName = propNames[i];
var memberConfig = config.MemberConfigurations.ContainsKey(propName)
? config.MemberConfigurations[propName]
: null;
if (memberConfig != null && (
(memberConfig.Ignored.HasValue && memberConfig.Ignored.Value) ||
(memberConfig.Writable.HasValue && !memberConfig.Writable.Value) ||
(memberConfig.ShouldDeserializePredicate != null && memberConfig.ShouldDeserializePredicate.Invoke(entityInfo.Entity) == false)
))
{
continue;
}
if (propType.IsAssociationType)
{
continue;
}
if (propType.IsComponentType)
{
var compType = (ComponentType)propType;
var componentVal = GetPropertyValue(meta, entityInfo.Entity, propName);
var dbComponentVal = GetPropertyValue(meta, dbEntity, propName);
var compPropsVal = compType.GetPropertyValues(componentVal);
compType.SetPropertyValues(dbComponentVal, compPropsVal);
}
else
{
var val = meta.GetPropertyValue(entityInfo.Entity, propName);
meta.SetPropertyValue(dbEntity, propName, val);
}
}
typeof(EntityInfo).GetProperty("Entity").SetValue(entityInfo, dbEntity);
return(true);
}
/// <summary>
/// Add the metadata for an entity.
/// </summary>
/// <param name="meta"></param>
void AddClass(IClassMetadata meta)
{
var type = meta.MappedClass;
// "Customer:#Breeze.Nhibernate.NorthwindIBModel": {
var classKey = type.Name + ":#" + type.Namespace;
var cmap = new Dictionary <string, object>();
_typeList.Add(cmap);
cmap.Add("shortName", type.Name);
cmap.Add("namespace", type.Namespace);
var entityPersister = meta as IEntityPersister;
var metaModel = entityPersister.EntityMetamodel;
var superType = metaModel.SuperclassType;
if (superType != null)
{
var baseTypeName = superType.Name + ":#" + superType.Namespace;
cmap.Add("baseTypeName", baseTypeName);
}
var generator = entityPersister != null ? entityPersister.IdentifierGenerator : null;
if (generator != null)
{
string genType = null;
if (generator is IdentityGenerator)
{
genType = "Identity";
}
else if (generator is Assigned || generator is ForeignGenerator)
{
genType = "None";
}
else
{
genType = "KeyGenerator";
}
cmap.Add("autoGeneratedKeyType", genType); // TODO find the real generator
}
var resourceName = _pluralizationService.Pluralize(type.Name);
//We add custom resource name if defined
var modelConfiguration = _breezeConfigurator.GetModelConfiguration(type);
if (!string.IsNullOrEmpty(modelConfiguration.ResourceName))
{
resourceName = modelConfiguration.ResourceName;
}
cmap.Add("defaultResourceName", resourceName);
_resourceMap.Add(resourceName, classKey);
var dataList = new List <Dictionary <string, object> >();
cmap.Add("dataProperties", dataList);
var navList = new List <Dictionary <string, object> >();
cmap.Add("navigationProperties", navList);
AddClassProperties(meta, dataList, navList);
}
/// <inheritdoc />
protected sealed override List <MemberInfo> GetSerializableMembers(Type objectType)
{
return(_breezeConfigurator.GetModelConfiguration(objectType).Members.Values.Select(o => o.MemberInfo).ToList());
}
