internal static string GetFieldInnerName <T>(Expression <Func <T, object> > fieldSelector) where T : Item, new()
{
if (fieldSelector == null)
{
throw new ArgumentNullException("fieldSelector");
}
var memberAccessor = new MemberAccessVisitor();
string propName = memberAccessor.GetMemberName(fieldSelector);
var prop = typeof(T).GetProperty(propName);
var fieldAttrs = prop.GetCustomAttributes(typeof(FieldAttribute), true);
if (fieldAttrs.Length != 0)
{
var spPropName = ((FieldAttribute)fieldAttrs[0]).Name;
if (spPropName != null)
{
propName = spPropName;
}
}
else
{
propName = FieldMapper.TranslateToFieldName(propName);
}
return(propName);
}
internal static object ToEntityField(PropertyInfo prop, SPListItem listItem, SPField field = null,
object value = null, bool reloadLookupItem = true)
{
string propName = prop.Name;
Type propType = prop.PropertyType;
// var fieldAttrs = (FieldAttribute[])prop.GetCustomAttributes(typeof(FieldAttribute), true);
var fieldAttrs = (FieldAttribute[])Attribute.GetCustomAttributes(prop, typeof(FieldAttribute), true);
string spPropName;
if (fieldAttrs.Length != 0)
{
spPropName = fieldAttrs[0].Name;
if (spPropName == null)
{
spPropName = propName;
}
}
else
{
spPropName = FieldMapper.TranslateToFieldName(propName);
}
if (field == null)
{
field = listItem.Fields.TryGetFieldByStaticName(spPropName);
if (field == null)
{
throw new SharepointCommonException(string.Format("Field '{0}' not exist", propName));
}
}
object fieldValue = value ?? listItem[spPropName];
//------------------------------------
if (field.Type == SPFieldType.User)
{
var f = field as SPFieldLookup;
Assert.NotNull(f);
if (f.AllowMultipleValues == false)
{
var spUser = CommonHelper.GetUser(field.ParentList, spPropName, fieldValue);
if (spUser == null)//todo: why?
{
if (fieldValue == null)
{
return(null);
}
var userValue = new SPFieldUserValue(field.ParentList.ParentWeb, fieldValue.ToString());
return(_proxyGenerator.CreateClassProxy <User>(new UserAccessInterceptor(userValue)));
}
else
{
return(_proxyGenerator.CreateClassProxy <Person>(new UserAccessInterceptor(spUser)));
}
}
else
{
var spUsers = CommonHelper.GetUsers(field.ParentList, spPropName, fieldValue);
var users = new UserIterator(spUsers);
return(users);
}
}
// lookup
if ((field.Type == SPFieldType.Lookup || field.Type == SPFieldType.Invalid) && typeof(Item).IsAssignableFrom(propType))
{
var attr = fieldAttrs[0];
return(GetLookupItemUntype(propType, field, fieldValue, attr));
}
//multi lookup
if ((field.Type == SPFieldType.Lookup || field.Type == SPFieldType.Invalid) &&
(CommonHelper.ImplementsOpenGenericInterface(propType, typeof(IEnumerable <>))))
{
var attr = fieldAttrs[0];
var lookupType = propType.GetGenericArguments()[0];
if (!typeof(Item).IsAssignableFrom(lookupType))
{
throw new SharepointCommonException(string.Format("Type {0} cannot be used as lookup", lookupType));
}
try
{
var meth = typeof(EntityMapper).GetMethod("GetLookupItems", BindingFlags.Static | BindingFlags.NonPublic);
var methGeneric = meth.MakeGenericMethod(lookupType);
var itmId = listItem == null ? null : (int?)listItem.ID;
return(methGeneric.Invoke(null, new[] { field, fieldValue, attr, itmId, reloadLookupItem }));
}
catch (TargetInvocationException e)
{
throw e.InnerException;
}
}
if (field.Type == SPFieldType.Guid)
{
var guid = new Guid(fieldValue.ToString());
return(guid);
}
if (field.Type == SPFieldType.Note)
{
if (fieldValue == null)
{
return(null);
}
var text = ((SPFieldMultiLineText)field).GetFieldValueAsText(fieldValue);
return(text);
}
if (propName == "Version")
{
var version = new Version(fieldValue.ToString());
return(version);
}
if (field.Type == SPFieldType.Number)
{
if (propType == typeof(int))
{
int val = Convert.ToInt32(fieldValue);
return(val);
}
if (propType == typeof(double))
{
var val = Convert.ToDouble(fieldValue);
return(val);
}
if (CommonHelper.ImplementsOpenGenericInterface(propType, typeof(Nullable <>)))
{
Type argumentType = propType.GetGenericArguments()[0];
if (argumentType == typeof(int))
{
return(fieldValue == null ? (int?)null : Convert.ToInt32(fieldValue));
}
if (argumentType == typeof(double))
{
return(fieldValue == null ? (double?)null : Convert.ToDouble(fieldValue));
}
}
if (typeof(Item).IsAssignableFrom(propType))
{
if (fieldAttrs.Length == 0 || string.IsNullOrEmpty(fieldAttrs[0].LookupList))
{
throw new SharepointCommonException("To map number field as Item it need been marked with 'FieldAttribute' and set 'LookupList' property");
}
var attr = fieldAttrs[0];
return(GetLookupItemUntype(propType, field, fieldValue, attr));
}
}
if (field.Type == SPFieldType.Boolean)
{
if (propType == typeof(bool))
{
var val = Convert.ToBoolean(fieldValue);
return(val);
}
if (CommonHelper.ImplementsOpenGenericInterface(propType, typeof(Nullable <>)))
{
var argumentType = propType.GetGenericArguments()[0];
if (argumentType == typeof(bool))
{
return(fieldValue == null ? (bool?)null : Convert.ToBoolean(fieldValue));
}
}
if (typeof(Item).IsAssignableFrom(propType))
{
if (fieldAttrs.Length == 0 || string.IsNullOrEmpty(fieldAttrs[0].LookupList))
{
throw new SharepointCommonException(
"To map number field as Item it need been marked with 'FieldAttribute' and set 'LookupList' property");
}
var attr = fieldAttrs[0];
return(GetLookupItemUntype(propType, field, fieldValue, attr));
}
}
if (field.Type == SPFieldType.DateTime)
{
if (propType == typeof(DateTime))
{
var val = CommonHelper.GetDateTimeFieldValue(fieldValue);
return(val);
}
if (CommonHelper.ImplementsOpenGenericInterface(propType, typeof(Nullable <>)))
{
var argumentType = propType.GetGenericArguments()[0];
if (argumentType == typeof(DateTime))
{
var v = fieldValue == null ? (DateTime?)null : CommonHelper.GetDateTimeFieldValue(fieldValue);
return(v);
}
}
}
if (field.Type == SPFieldType.Currency)
{
if (propType == typeof(decimal))
{
decimal val = Convert.ToDecimal(fieldValue);
return(val);
}
if (CommonHelper.ImplementsOpenGenericInterface(propType, typeof(Nullable <>)))
{
Type argumentType = propType.GetGenericArguments()[0];
if (argumentType == typeof(decimal))
{
return(fieldValue == null ? (decimal?)null : Convert.ToDecimal(fieldValue));
}
}
}
if (field.Type == SPFieldType.Text)
{
if ((string)fieldValue == string.Empty)
{
return(null);
}
return(fieldValue);
}
if (field.Type == SPFieldType.Choice)
{
if (propType.IsEnum == false)
{
if (CommonHelper.ImplementsOpenGenericInterface(propType, typeof(Nullable <>)))
{
Type argumentType = propType.GetGenericArguments()[0];
if (argumentType.IsEnum == false)
{
throw new SharepointCommonException(string.Format("Property '{0}' must be declared as enum with fields corresponds to choices", propName));
}
propType = argumentType;
}
if (propType == typeof(string))
{
return(fieldValue);
}
}
return(EnumMapper.ToEntity(propType, fieldValue));
}
if (field.Type == SPFieldType.Calculated)
{
fieldValue = field.GetFieldValueAsText(fieldValue);
}
return(fieldValue);
}
internal static void ToItem <T>(T entity, SPListItem listItem, List <string> propertiesToSet = null)
{
var itemType = entity.GetType();
var props = itemType.GetProperties();
foreach (PropertyInfo prop in props)
{
if (CommonHelper.IsPropertyNotMapped(prop))
{
continue;
}
Assert.IsPropertyVirtual(prop);
if (propertiesToSet != null && propertiesToSet.Count > 0)
{
if (propertiesToSet.Contains(prop.Name) == false)
{
continue;
}
}
string spName;
// var fieldAttrs = prop.GetCustomAttributes(typeof(FieldAttribute), false);
var fieldAttrs = Attribute.GetCustomAttributes(prop, typeof(FieldAttribute));
CustomFieldProvider customFieldProvider = null;
if (fieldAttrs.Length != 0)
{
spName = ((FieldAttribute)fieldAttrs[0]).Name;
if (spName == null)
{
spName = prop.Name;
}
customFieldProvider = ((FieldAttribute)fieldAttrs[0]).FieldProvider;
}
else
{
spName = FieldMapper.TranslateToFieldName(prop.Name);
}
if (FieldMapper.IsReadOnlyField(spName) == false)
{
continue; // skip fields that cant be set
}
var propValue = prop.GetValue(entity, null);
if (propValue == null)
{
listItem[spName] = null;
continue;
}
if (prop.PropertyType == typeof(string))
{
listItem[spName] = propValue;
continue;
}
if (prop.PropertyType == typeof(DateTime))
{
// update DateTime field with empty value thrown exception
if (((DateTime)propValue) != DateTime.MinValue)
{
listItem[spName] = propValue;
}
continue;
}
if (prop.PropertyType == typeof(User))
{
// domain user or group
Assert.IsPropertyVirtual(prop);
var user = (User)propValue;
SPFieldUserValue spUserValue = FieldMapper.ToUserValue(user, listItem.Web);
listItem[spName] = spUserValue;
continue;
}
// handle lookup fields
if (typeof(Item).IsAssignableFrom(prop.PropertyType))
{
Assert.IsPropertyVirtual(prop);
if (customFieldProvider == null)
{
var item = (Item)propValue;
var lookup = new SPFieldLookupValue(item.Id, item.Title);
listItem[spName] = lookup;
}
else
{
var providerType = customFieldProvider.GetType();
var method = providerType.GetMethod("SetLookupItem");
if (method.DeclaringType == typeof(CustomFieldProvider))
{
throw new SharepointCommonException(string.Format("Must override 'SetLookupItem' in {0} to get custom lookups field working.", providerType));
}
var value = customFieldProvider.SetLookupItem(propValue);
listItem[spName] = value;
}
continue;
}
//// handle multivalue fields
if (CommonHelper.ImplementsOpenGenericInterface(prop.PropertyType, typeof(IEnumerable <>)))
{
Assert.IsPropertyVirtual(prop);
Type argumentType = prop.PropertyType.GetGenericArguments()[0];
if (argumentType == typeof(User))
{
var users = propValue as IEnumerable <User>;
Assert.NotNull(users);
var values = new SPFieldUserValueCollection();
foreach (User user in users)
{
if (user is Person)
{ // domain user or group
var person = (Person)user;
SPUser spUser = null;
try
{
spUser = listItem.ParentList.ParentWeb.SiteUsers[person.Login];
}
catch (SPException)
{
throw new SharepointCommonException(string.Format("User {0} not found.", user.Id));
}
var val = new SPFieldUserValue();
val.LookupId = spUser.ID;
values.Add(val);
}
else
{ // sharepoint group
SPGroup spGroup = null;
try
{
spGroup = listItem.ParentList.ParentWeb.SiteGroups[user.Name];
}
catch (SPException)
{
throw new SharepointCommonException(string.Format("Group {0} not found.", user.Name));
}
var val = new SPFieldUserValue();
val.LookupId = spGroup.ID;
values.Add(val);
}
}
listItem[spName] = values;
}
if (typeof(Item).IsAssignableFrom(argumentType))
{
var lookupvalues = propValue as IEnumerable;
if (customFieldProvider == null)
{
var spLookupValues = new SPFieldLookupValueCollection();
foreach (Item lookupvalue in lookupvalues)
{
var val = new SPFieldLookupValue();
val.LookupId = lookupvalue.Id;
spLookupValues.Add(val);
}
listItem[spName] = spLookupValues;
}
else
{
var providerType = customFieldProvider.GetType();
var method = providerType.GetMethod("SetLookupItem");
if (method.DeclaringType == typeof(CustomFieldProvider))
{
throw new SharepointCommonException(string.Format("Must override 'SetLookupItem' in {0} to get custom lookups field working.", providerType));
}
var values = customFieldProvider.SetLookupItem(propValue);
listItem[spName] = values;
}
}
continue;
}
if (prop.PropertyType.IsEnum)
{
listItem[spName] = EnumMapper.ToItem(prop.PropertyType, propValue);
continue;
}
var innerType = Nullable.GetUnderlyingType(prop.PropertyType);
if (innerType != null && innerType.IsEnum)
{
listItem[spName] = EnumMapper.ToItem(innerType, propValue);
continue;
}
if (prop.PropertyType == typeof(Person))
{
throw new SharepointCommonException("Cannot use [Person] as mapped property. Use [User] instead.");
}
listItem[spName] = propValue;
}
}