|
public FindField ( string fieldName ) : |
||
| fieldName | string | |
| return | ||
public static List<PropertyItem> GetCustomFieldPropertyItems(IEnumerable<ICustomFieldDefinition> definitions, Row row, string fieldPrefix)
{
var list = new List<PropertyItem>();
foreach (var def in definitions)
{
string name = fieldPrefix + def.Name;
var field = row.FindFieldByPropertyName(name) ?? row.FindField(name);
list.Add(GetCustomFieldPropertyItem(def, field));
}
return list;
}
public bool ActivateFor(Row row)
{
if (ReferenceEquals(null, Target))
return false;
attr = Target.GetAttribute<ImageUploadEditorAttribute>();
if (attr == null || attr.DisableDefaultBehavior || attr.EditorType != "ImageUpload")
return false;
if (!(Target is StringField))
throw new ArgumentException(String.Format(
"Field '{0}' on row type '{1}' has a UploadEditor attribute but it is not a String field!",
Target.PropertyName ?? Target.Name, row.GetType().FullName));
if (!(row is IIdRow))
throw new ArgumentException(String.Format(
"Field '{0}' on row type '{1}' has a UploadEditor attribute but Row type doesn't implement IIdRow!",
Target.PropertyName ?? Target.Name, row.GetType().FullName));
if (!attr.OriginalNameProperty.IsEmptyOrNull())
{
var originalNameField = row.FindFieldByPropertyName(attr.OriginalNameProperty) ??
row.FindField(attr.OriginalNameProperty);
if (ReferenceEquals(null, originalNameField))
throw new ArgumentException(String.Format(
"Field '{0}' on row type '{1}' has a UploadEditor attribute but " +
"a field with OriginalNameProperty '{2}' is not found!",
Target.PropertyName ?? Target.Name,
row.GetType().FullName,
attr.OriginalNameProperty));
this.originalNameField = (StringField)originalNameField;
}
var format = attr.FilenameFormat;
if (format == null)
{
format = row.GetType().Name;
if (format.EndsWith("Row"))
format = format.Substring(0, format.Length - 3);
format += "/~";
}
this.fileNameFormat = format.Replace("~", SplittedFormat);
this.replaceFields = ParseReplaceFields(fileNameFormat, row, Target);
this.uploadHelper = new UploadHelper((attr.SubFolder.IsEmptyOrNull() ? "" : (attr.SubFolder + "/")) + (this.fileNameFormat));
return true;
}
/// <summary>
/// Converts a list of FilterLine objects to a WHERE clause usable in a SQL select query.</summary>
/// <param name="lines">
/// List of FilterLine objects to convert to a WHERE clause.</param>
/// <param name="filterFields">
/// Collection of FilterField objects to determine field types and check filterability of fields.
/// This list is usually the filter field options list that is sent to a filter panel object.
/// If this list is specified, for a filter to be considered valid, its fieldname must be
/// found in the list. If the list is given null, field name is looked up in fieldExpressions,
/// query or row and field type is determined by the field object in the row.</param>
/// <param name="fieldExpressions">
/// An optional dictionary of field expressions. If a field's corresponding SQL expression like
/// "join.field_name" is not determinable by reading in the query or the row, this list must be specified.
/// When specified, this list takes priority over the query and row objects to determine the field
/// expression.</param>
/// <param name="query">
/// An optional SqlSelect query to determine field expressions. If a field's expression is not found
/// in "fieldExpressions" dictionary, it is looked up in query object.</param>
/// <param name="row">
/// An optional Row object to determine field types and expressions.</param>
/// <param name="process">
/// An optional delegate to preprocess a filter line and return a filter. It should return an empty
/// filter if this line should be ignored. Null if this line should be processed as usual.</param>
/// <returns>
/// WHERE clause.</returns>
/// <remarks>
/// Invalid filter lines are simply skipped, no error occurs.</remarks>
public static string ToWhereString(SqlQuery query, IEnumerable <FilterLine> lines, FilterFields filterFields,
IDictionary <string, string> fieldExpressions = null, Row row = null, Func <FilterLine, BaseCriteria> process = null)
{
if (lines == null)
{
throw new ArgumentNullException("lines");
}
const string AND = " AND ";
const string OR = " OR ";
const string LPAREN = "(";
const string RPAREN = ")";
//const string TRUE = "1=1";
// build a dictionary of FilterField objects if the list is specified
// this list is usually the filter field options list that is sent to FilterPanel object.
/*Dictionary<string, FilterField> filterFieldDict = null;
* if (filterFields != null)
* {
* filterFieldDict = new Dictionary<string, FilterField>(StringComparer.OrdinalIgnoreCase);
* foreach (FilterField f in filterFields)
* {
* filterFieldDict[f.GetName()] = f;
*
* if (f.GetTextual() != null)
* filterFieldDict[f.GetTextual()] = f;
* }
* }*/
bool inParens = false;
bool hasOr = false;
StringBuilder sb = new StringBuilder();
foreach (FilterLine line in lines)
{
if (inParens &&
(line._rightParen || line._leftParen))
{
sb.Append(RPAREN);
inParens = false;
}
if (sb.Length > 0)
{
sb.Append(line._or ? OR : AND);
if (line._or)
{
hasOr = true;
}
}
if (line._leftParen)
{
sb.Append(LPAREN);
inParens = true;
}
if (!line.IsValid)
{
throw new ArgumentOutOfRangeException("InvalidFilterLine", line.ToJson());
//sb.Append(TRUE);
//continue;
}
if (process != null)
{
var filter = process(line);
if (!Object.ReferenceEquals(filter, null))
{
if (filter.IsEmpty)
{
//sb.Append(TRUE);
throw new ArgumentOutOfRangeException("EmptyFilterLine", line.ToJson());
}
else
{
sb.Append(filter.ToStringIgnoreParams()); // FIX!!!!
}
continue;
}
}
string fieldName = line.Field;
// if filter fields list is specified, the fieldname must exist in this list, otherwise
// it may be an hacking attempt, as user tries to filter a field that he is not
// represented with
IFilterField filterField = null;
if (filterFields != null)
{
filterField = filterFields.ByNameOrTextual(fieldName);
if (filterField == null)
{
throw new ArgumentOutOfRangeException("UnknownFilterField", line.ToJson());
}
//sb.Append(TRUE);
//continue;
}
Field field = null;
if (row != null)
{
field = row.FindField(fieldName);
}
/*// by default, suppose fields are string typed
* FilterFieldType type = FilterFieldType.String;
* // if given, determine field type by looking up in the filter field options
* if (filterField != null)
* type = filterField.GetType();
* // otherwise, determine field type by the class of field object
* else if (field != null)
* type = FilterField.ToFilterFieldType(field);*/
// to determine field expression, first look it up in fieldExpressions dictionary
string fieldExpr;
if (fieldExpressions == null ||
!fieldExpressions.TryGetValue(fieldName, out fieldExpr))
{
fieldExpr = null;
}
if (fieldExpr == null)
{
if (field != null)
{
fieldExpr = field.Expression;
}
else if (query != null)
{
fieldExpr = query.GetExpression(fieldName);
}
}
if (fieldExpr == null)
{
// field is not found anywhere, don't allow unknown fields as it may cause a script injection
// attack or other types of security threats!
//sb.Append(TRUE);
throw new ArgumentOutOfRangeException("UnknownFilterField", line.ToJson());
//continue;
}
bool isNumeric =
(filterField != null && (filterField.Handler == "Integer" || filterField.Handler == "Decimal")) ||
(filterField == null && field != null &&
(field is Int16Field || field is Int32Field || field is Int64Field || field is DoubleField || field is DecimalField));
// determine expression for this filter by operator type
FilterOp op = line.Op;
string sqlOp = SqlConditionOperators[(int)(op)];
if (op == FilterOp.IN)
{
StringBuilder vs = new StringBuilder();
var values = line.Values;
if (line.Values != null)
{
foreach (var s in line.Values)
{
if (isNumeric)
{ // parse invariant decimal value for integer and float fields
decimal d;
if (Decimal.TryParse(s, NumberStyles.Float, Invariants.NumberFormat, out d))
{
if (vs.Length > 0)
{
vs.Append(",");
}
vs.Append(d.ToInvariant());
}
}
else
{
if (vs.Length > 0)
{
vs.Append(",");
}
vs.Append(s.ToSql());
}
}
}
if (vs.Length == 0)
{
//sb.Append(TRUE);
throw new ArgumentOutOfRangeException("InvalidFilterLine", line.ToJson());
}
else
{
sb.AppendFormat(sqlOp, fieldExpr, vs.ToString());
}
continue;
}
// operator needs value if not one of "true", "false", "is null", "is not null"
if (op.IsNeedsValue())
{
// starts with and contains operators requires special care, as their sql expressions
// already contains single quotes, so .ToSql() cannot be used
if (op.IsLike())
{
if (line.Value != null)
{
sb.AppendFormat(SqlConditionOperators[(int)(op)],
fieldExpr, line.Value.Replace("'", "''"));
}
continue;
}
// parse value1 and value2
string value1 = "";
string value2 = "";
// simple loop to parse value1 and value2 in one turn
for (int phase = 0; phase <= 1; phase++)
{
string valueText;
if (phase == 0)
{
valueText = line.Value;
}
else
{
valueText = line.Value2;
}
valueText = valueText.TrimToNull();
// value must be entered
if (valueText == null)
{
throw new ArgumentOutOfRangeException("InvalidFilterLine", line.ToJson());
}
bool isDateTime =
(filterField != null && (filterField.Handler == "Date")) ||
(filterField == null && field != null &&
(field is DateTimeField));
if (isNumeric)
{ // parse invariant decimal value for integer and float fields
decimal d;
if (!Decimal.TryParse(valueText, NumberStyles.Float, Invariants.NumberFormat, out d))
{
throw new ArgumentOutOfRangeException("InvalidFilterLine", line.ToJson());
}
valueText = d.ToInvariant();
}
else if (isDateTime)
{ // parse iso date-time string
DateTime d;
if (!DateHelper.TryParseISO8601DateTime(valueText, out d))
{
throw new ArgumentOutOfRangeException("InvalidFilterLine", line.ToJson());
}
DateTimeKind kind = DateTimeKind.Unspecified;
object dateKindObj;
if (filterField != null && filterField.Params != null && filterField.Params.TryGetValue("DateKind", out dateKindObj))
{
var dateKind = ((DateFilterKind)Convert.ToInt32(dateKindObj));
kind = dateKind == DateFilterKind.DateTimeLocal ? DateTimeKind.Local : (dateKind == DateFilterKind.DateTimeUTC ? DateTimeKind.Utc : DateTimeKind.Unspecified);
}
else if (field != null && field is DateTimeField)
{
kind = ((DateTimeField)field).DateTimeKind;
}
d = DateTimeField.ToDateTimeKind(d, kind);
if (op == FilterOp.BW)
{
if (phase == 1)
{
sqlOp = "{0} >= {1} AND {0} < {2}";
d = d.AddDays(1);
}
}
else if (phase == 0)
{
if (op == FilterOp.NE || op == FilterOp.EQ)
{
value1 = d.ToSql();
value2 = d.AddDays(1).ToSql();
if (op == FilterOp.NE)
{
sqlOp = "NOT ({0} >= {1} AND {0} < {2})";
}
else
{
sqlOp = "{0} >= {1} AND {0} < {2}";
}
op = FilterOp.BW;
break;
}
else
{
if (op == FilterOp.GT)
{
op = FilterOp.GE;
d = d.AddDays(1);
}
else if (op == FilterOp.LE)
{
op = FilterOp.LT;
d = d.AddDays(1);
}
}
}
valueText = d.ToSql();
}
else // convert simple string value to sql string (duplicate quotes)
{
valueText = valueText.ToSql();
}
if (phase == 0)
{
value1 = valueText;
}
else
{
value2 = valueText;
}
// use second phase to parse value2 if operator is BW
if (op != FilterOp.BW)
{
break;
}
}
// format sql operator text with values
if (op == FilterOp.BW)
{
sb.AppendFormat(sqlOp, fieldExpr, value1, value2);
}
else
{
sb.AppendFormat(sqlOp, fieldExpr, value1);
}
}
else
{
sb.AppendFormat(sqlOp, fieldExpr);
}
}
if (inParens)
{
sb.Append(RPAREN);
}
if (hasOr)
{
sb.Append(RPAREN);
sb.Insert(0, LPAREN);
}
return(sb.ToString());
}
private BaseCriteria Convert(BasicFilter filter)
{
if (filter == null)
{
throw new ArgumentNullException("criteria");
}
if (!filter.IsValid)
{
throw new ArgumentOutOfRangeException("InvalidFilterCriteria", filter.ToJson());
}
if (_processCriteria != null)
{
var processed = _processCriteria(filter);
if (!Object.ReferenceEquals(processed, null))
{
if (processed.IsEmpty)
{
throw new ArgumentOutOfRangeException("EmptyFilterLine", filter.ToJson());
}
return(processed);
}
}
string fieldName = filter.Field;
Field field = null;
if (_row != null)
{
field = _row.FindField(fieldName);
}
// if filter fields list is specified, the fieldname must exist in this list, otherwise
// it may be an hacking attempt, as user tries to filter a field that he is not
// represented with
IFilterField filterField = null;
if (filterFields != null)
{
filterField = filterFields.ByNameOrTextual(fieldName);
if (filterField == null &&
(field == null || field.Flags.HasFlag(FieldFlags.DenyFiltering)))
{
throw new ArgumentOutOfRangeException("UnknownFilterField", fieldName);
}
}
//var type = GetFilterFieldType(field, fieldName);
var fieldExpr = GetFieldExpression(field, fieldName);
if (fieldExpr == null)
{
// field is not found anywhere, don't allow unknown fields as it may cause a script injection
// attack or other types of security threats!
throw new ArgumentOutOfRangeException("UnknownFilterField", filter.ToJson());
}
bool isInteger = (filterField != null && (filterField.Handler == "Integer")) ||
(filterField == null && field != null && (field is Int16Field || field is Int32Field || field is Int64Field));
bool isDecimal = (filterField != null && (filterField.Handler == "Decimal")) ||
(filterField == null && field != null && (field is DoubleField || field is DecimalField));
bool isNumeric = isInteger || isDecimal;
bool isDateTime =
(filterField != null && (filterField.Handler == "Date")) ||
(filterField == null && field != null &&
(field is DateTimeField));
var op = filter.Operator;
switch (op)
{
case FilterOp.True:
return(new Criteria(fieldExpr) == 1);
case FilterOp.False:
return(new Criteria(fieldExpr) == 0);
case FilterOp.IsNull:
return(new Criteria(fieldExpr).IsNull());
case FilterOp.IsNotNull:
return(new Criteria(fieldExpr).IsNotNull());
case FilterOp.Like:
return(new Criteria(fieldExpr).Like(filter.Value));
case FilterOp.NotLike:
return(new Criteria(fieldExpr).NotLike(filter.Value));
case FilterOp.Contains:
return(new Criteria(fieldExpr).Contains(filter.Value));
case FilterOp.NotContains:
return(new Criteria(fieldExpr).NotContains(filter.Value));
case FilterOp.StartsWith:
return(new Criteria(fieldExpr).StartsWith(filter.Value));
case FilterOp.EndsWith:
return(new Criteria(fieldExpr).EndsWith(filter.Value));
case FilterOp.IN:
case FilterOp.NotIN:
{
var values = new List <object>();
foreach (var s in filter.Values)
{
if (isDecimal)
{
values.Add(ParseDoubleValue(s));
}
else if (isInteger)
{
values.Add(ParseIntegerValue(field, s));
}
else
{
values.Add(s);
}
}
if (values.Count == 0)
{
throw new ArgumentOutOfRangeException("InvalidFilterLine", filter.ToJson());
}
if (op == FilterOp.IN)
{
return(new Criteria(fieldExpr).In(values.ToArray()));
}
else
{
return(new Criteria(fieldExpr).NotIn(values.ToArray()));
}
}
}
// parse value1 and value2
string value1Text = filter.Value.TrimToEmpty();
string value2Text = filter.Value2.TrimToEmpty();
if ((op == FilterOp.BW || op == FilterOp.NotBW))
{
if (value1Text.IsNullOrEmpty() || value2Text.IsNullOrEmpty())
{
throw new ArgumentOutOfRangeException("InvalidFilterLine", filter.ToJson());
}
if (isInteger)
{
return(new Criteria(fieldExpr) >= ParseIntegerValue(field, value1Text) &
new Criteria(fieldExpr) <= ParseIntegerValue(field, value2Text));
}
else if (isDecimal)
{
return(new Criteria(fieldExpr) >= ParseDoubleValue(value1Text) &
new Criteria(fieldExpr) <= ParseDoubleValue(value2Text));
}
else if (isDateTime)
{
var d1 = ParseDateTimeValue(value1Text);
var d2 = ParseDateTimeValue(value2Text);
if (d1.Date == d1 && d2.Date == d2)
{
if (op == FilterOp.BW)
{
return(new Criteria(fieldExpr) >= d1.Date & new Criteria(fieldExpr) < d2.Date.AddDays(1));
}
else
{
return(~(new Criteria(fieldExpr) < d1.Date | new Criteria(fieldExpr) >= d2.Date.AddDays(1)));
}
}
else
{
if (op == FilterOp.BW)
{
return(new Criteria(fieldExpr) >= d1 & new Criteria(fieldExpr) <= d2);
}
else
{
return(~((new Criteria(fieldExpr) < d1 | new Criteria(fieldExpr) > d2)));
}
}
}
else
{
if (op == FilterOp.BW)
{
return(new Criteria(fieldExpr) >= value1Text & new Criteria(fieldExpr) <= value2Text);
}
else
{
return(~((new Criteria(fieldExpr) < value2Text | new Criteria(fieldExpr) > value2Text)));
}
}
}
var result = new Criteria(fieldExpr);
if (isInteger)
{
var i = ParseIntegerValue(field, value1Text);
if (op == FilterOp.EQ)
{
return(result == i);
}
else if (op == FilterOp.NE)
{
return(result != i);
}
else if (op == FilterOp.GT)
{
return(result > i);
}
else if (op == FilterOp.GE)
{
return(result >= i);
}
else if (op == FilterOp.LT)
{
return(result < i);
}
else if (op == FilterOp.LE)
{
return(result <= i);
}
}
else if (isDecimal)
{
var o = ParseIntegerValue(field, value1Text);
if (op == FilterOp.EQ)
{
return(result == o);
}
else if (op == FilterOp.NE)
{
return(result != o);
}
else if (op == FilterOp.GT)
{
return(result > o);
}
else if (op == FilterOp.GE)
{
return(result >= o);
}
else if (op == FilterOp.LT)
{
return(result < o);
}
else if (op == FilterOp.LE)
{
return(result <= o);
}
}
else if (isDateTime)
{
var d = ParseDateTimeValue(value1Text);
if (d.Date == d)
{
if (op == FilterOp.EQ)
{
return(result >= d & result < d.AddDays(1));
}
else if (op == FilterOp.NE)
{
return(~(result < d | result >= d.AddDays(1)));
}
else if (op == FilterOp.GT)
{
return(result >= d.AddDays(1));
}
else if (op == FilterOp.GE)
{
return(result >= d);
}
else if (op == FilterOp.LT)
{
return(result < d);
}
else if (op == FilterOp.LE)
{
return(result < d.AddDays(1));
}
}
else
{
if (op == FilterOp.EQ)
{
return(result == d);
}
else if (op == FilterOp.NE)
{
return(result != d);
}
else if (op == FilterOp.GT)
{
return(result > d);
}
else if (op == FilterOp.GE)
{
return(result >= d);
}
else if (op == FilterOp.LT)
{
return(result < d);
}
else if (op == FilterOp.LE)
{
return(result <= d);
}
}
}
else
{
if (op == FilterOp.EQ)
{
return(result == value1Text);
}
else if (op == FilterOp.NE)
{
return(result != value1Text);
}
else if (op == FilterOp.GT)
{
return(result > value1Text);
}
else if (op == FilterOp.GE)
{
return(result >= value1Text);
}
else if (op == FilterOp.LT)
{
return(result < value1Text);
}
else if (op == FilterOp.LE)
{
return(result <= value1Text);
}
}
throw new InvalidOperationException();
}
public bool ActivateFor(Row row)
{
var attrs = row.GetType().GetCustomAttributes<UpdatableExtensionAttribute>();
if (attrs == null || !attrs.Any())
return false;
var sourceByExpression = row.GetFields().ToLookup(x =>
BracketLocator.ReplaceBrackets(x.Expression.TrimToEmpty(), BracketRemoverDialect.Instance));
this.infoList = attrs.Select(attr =>
{
var info = new RelationInfo();
info.Attr = attr;
var rowType = attr.RowType;
if (rowType.GetIsAbstract() ||
!typeof(Row).IsAssignableFrom(rowType))
{
throw new ArgumentException(String.Format(
"Row type '{1}' has an ExtensionRelation attribute " +
"but its specified extension row type '{0}' is not a valid row class!",
rowType.FullName,
row.GetType().FullName));
}
info.RowFactory = FastReflection.DelegateForConstructor<Row>(rowType);
info.ListHandlerFactory = FastReflection.DelegateForConstructor<IListRequestProcessor>(
typeof(ListRequestHandler<>).MakeGenericType(rowType));
info.SaveHandlerFactory = FastReflection.DelegateForConstructor<ISaveRequestProcessor>(
typeof(SaveRequestHandler<>).MakeGenericType(rowType));
info.SaveRequestFactory = FastReflection.DelegateForConstructor<ISaveRequest>(
typeof(SaveRequest<>).MakeGenericType(rowType));
info.DeleteHandlerFactory = FastReflection.DelegateForConstructor<IDeleteRequestProcessor>(
typeof(DeleteRequestHandler<>).MakeGenericType(rowType));
var thisKey = attr.ThisKey;
if (string.IsNullOrEmpty(thisKey))
{
if (!(row is IIdRow))
{
throw new ArgumentException(String.Format(
"Row type '{0}' has an ExtensionRelation attribute " +
"but its ThisKey is not specified!",
row.GetType().FullName));
}
info.ThisKeyField = (Field)(((IIdRow)row).IdField);
}
else
{
info.ThisKeyField = row.FindFieldByPropertyName(attr.ThisKey) ?? row.FindField(attr.ThisKey);
if (ReferenceEquals(info.ThisKeyField, null))
throw new ArgumentException(String.Format("Field '{0}' doesn't exist in row of type '{1}'." +
"This field is specified for an ExtensionRelation attribute",
attr.ThisKey,
row.GetType().FullName));
}
var ext = info.RowFactory();
var otherKey = attr.OtherKey;
if (string.IsNullOrEmpty(otherKey))
{
info.OtherKeyField = ext.FindField(info.ThisKeyField.Name);
if (ReferenceEquals(info.OtherKeyField, null) && ext is IIdRow)
info.OtherKeyField = (Field)(((IIdRow)row).IdField);
if (ReferenceEquals(info.OtherKeyField, null))
throw new ArgumentException(String.Format(
"Row type '{1}' has an ExtensionRelation attribute " +
"but its OtherKey is not specified!",
row.GetType().FullName));
}
else
{
info.OtherKeyField = ext.FindFieldByPropertyName(attr.OtherKey) ?? ext.FindField(attr.OtherKey);
if (ReferenceEquals(info.OtherKeyField, null))
throw new ArgumentException(String.Format("Field '{0}' doesn't exist in row of type '{1}'." +
"This field is specified for an ExtensionRelation attribute on '{2}'",
attr.OtherKey,
ext.GetType().FullName,
row.GetType().FullName));
}
if (!string.IsNullOrEmpty(attr.FilterField))
{
info.FilterField = ext.FindFieldByPropertyName(attr.FilterField) ?? ext.FindField(attr.FilterField);
if (ReferenceEquals(info.FilterField, null))
throw new ArgumentException(String.Format("Field '{0}' doesn't exist in row of type '{1}'." +
"This field is specified as FilterField for an ExtensionRelation attribute on '{2}'",
attr.OtherKey,
ext.GetType().FullName,
row.GetType().FullName));
info.FilterValue = info.FilterField.ConvertValue(attr.FilterValue, CultureInfo.InvariantCulture);
}
if (!string.IsNullOrEmpty(attr.PresenceField))
{
info.PresenceField = ext.FindFieldByPropertyName(attr.PresenceField) ?? ext.FindField(attr.PresenceField);
if (ReferenceEquals(info.PresenceField, null))
throw new ArgumentException(String.Format("Field '{0}' doesn't exist in row of type '{1}'." +
"This field is specified as PresenceField as an ExtensionRelation attribute.",
attr.PresenceField,
row.GetType().FullName));
info.PresenceValue = attr.PresenceValue;
}
var extFields = ext.GetFields();
var alias = attr.Alias;
var aliasPrefix = attr.Alias + "_";
var joinByKey = new HashSet<string>(extFields.Joins.Keys, StringComparer.OrdinalIgnoreCase);
Func<string, string> mapAlias = x =>
{
if (x == "t0" || x == "T0")
return alias;
if (!joinByKey.Contains(x))
return x;
return aliasPrefix + x;
};
Func<string, string> mapExpression = x =>
{
if (x == null)
return null;
return JoinAliasLocator.ReplaceAliases(x, mapAlias);
};
info.Mappings = new List<Tuple<Field, Field>>();
foreach (var field in extFields)
{
if (ReferenceEquals(info.OtherKeyField, field))
continue;
if (ReferenceEquals(info.FilterField, field))
continue;
var expression = field.Expression.TrimToEmpty();
if (string.IsNullOrEmpty(expression))
continue;
expression = mapExpression(expression);
expression = BracketLocator.ReplaceBrackets(expression,
BracketRemoverDialect.Instance);
var match = sourceByExpression[expression].FirstOrDefault();
if (ReferenceEquals(null, match))
continue;
if (match.IsTableField())
continue;
if (ReferenceEquals(info.ThisKeyField, match))
continue;
if (field.GetType() != match.GetType())
throw new ArgumentException(String.Format(
"Row type '{0}' has an ExtensionRelation attribute to '{1}'." +
"Their '{2}' and '{3}' fields are matched but they have different types ({4} and {5})!",
row.GetType().FullName,
ext.GetType().FullName,
field.PropertyName ?? field.Name,
match.PropertyName ?? match.Name,
field.GetType().Name,
match.GetType().Name));
info.Mappings.Add(new Tuple<Field, Field>(match, field));
}
if (info.Mappings.Count == 0)
throw new ArgumentException(String.Format(
"Row type '{0}' has an ExtensionRelation attribute " +
"but no view fields could be matched to extension row '{1}'!",
row.GetType().FullName,
ext.GetType().FullName));
return info;
}).ToList();
return true;
}
internal static Dictionary<string, Field> ParseReplaceFields(string fileNameFormat, Row row, Field target)
{
if (fileNameFormat.IndexOf('|') < 0)
return null;
var replaceFields = new Dictionary<string, Field>();
int start = 0;
while ((start = fileNameFormat.IndexOf('|', start)) >= 0)
{
var end = fileNameFormat.IndexOf('|', start + 1);
if (end <= start + 1)
throw new ArgumentException(String.Format(
"Field '{0}' on row type '{1}' has a UploadEditor attribute " +
"with invalid format string '{2}'!",
target.PropertyName ?? target.Name,
row.GetType().FullName,
fileNameFormat));
var fieldName = fileNameFormat.Substring(start + 1, end - start - 1);
var actualName = fieldName;
var colon = fieldName.IndexOf(":");
if (colon >= 0)
actualName = fieldName.Substring(0, colon);
var replaceField = row.FindFieldByPropertyName(actualName) ??
row.FindField(actualName);
if (ReferenceEquals(null, replaceField))
{
throw new ArgumentException(String.Format(
"Field '{0}' on row type '{1}' has a UploadEditor attribute that " +
"references field '{2}', but no such field is found!'",
target.PropertyName ?? target.Name,
row.GetType().FullName,
actualName));
}
replaceFields['|' + fieldName + '|'] = replaceField;
start = end + 1;
}
return replaceFields;
}