/// <summary>
/// Checks and evetually sets a link property.
/// </summary>
/// <param name="item">Wikidata item.</param>
/// <param name="propertyId">Id of the property.</param>
/// <param name="expectedItemId">Expected item id.</param>
/// <param name="createStatement"><c>true</c> to create the statement if not existing yet.</param>
/// <param name="overrideWrongData"><c>true</c> to overwrite wrong data.</param>
/// <param name="statement">Newly created statement.</param>
/// <returns>Status of the link property.</returns>
public WikiDataState CheckPropertyValue(Item item, String propertyId, String expectedItemId, Boolean createStatement, Boolean overrideWrongData, out Statement statement)
{
if ( item == null )
throw new ArgumentNullException("item");
WikiDataState result = WikiDataState.Unknown;
// Statement claim = item.Claims.FirstOrDefault(x => x.IsAboutProperty(WikiBase.PropertyIdCountry)) as Statement;
var property = new EntityId(propertyId);
Statement claim = item.Claims.FirstOrDefault(x => property.Equals(x.mainSnak.PropertyId)) as Statement;
var entity = new EntityId(expectedItemId);
var dataValue = new EntityIdValue(entity);
var snak = new Snak(SnakType.Value, new EntityId(propertyId), dataValue);
if ( claim == null )
{
if ( String.IsNullOrEmpty(expectedItemId) )
{
result = WikiDataState.Valid;
}
else
{
result = WikiDataState.NotSet;
if ( createStatement )
{
claim = item.createStatementForSnak(snak);
}
}
}
else
{
Snak oldSnak = claim.mainSnak;
var oldDataValue = oldSnak.DataValue as EntityIdValue;
if ( oldDataValue.NumericId == dataValue.NumericId )
{
result = WikiDataState.Valid;
}
else
{
if ( !String.IsNullOrEmpty(expectedItemId) )
{
result = WikiDataState.WrongValue;
if ( overrideWrongData )
{
claim.mainSnak = snak;
}
}
else
{
result = WikiDataState.DataMissing;
}
}
}
statement = claim as Statement;
return result;
}
public void AddCategoryCombinesTopic(Item item, Entity entity, EntityType entityType)
{
if ( !item.Claims.Any(x => x.IsAboutProperty(WikiBase.PropertyIdCategoryCombinesTopic)) )
{
var dataValue1 = new EntityIdValue(new EntityId(WikiBase.WikiDataItems[entityType]));
var snak1 = new Snak(SnakType.Value, new EntityId(WikiBase.PropertyIdCategoryCombinesTopic), dataValue1);
var claim1 = item.createStatementForSnak(snak1);
claim1.save(GetClaimSaveEditSummary(claim1));
var dataValue2 = new EntityIdValue(new EntityId(entity.wiki.wikidata));
var snak2 = new Snak(SnakType.Value, new EntityId(WikiBase.PropertyIdCategoryCombinesTopic), dataValue2);
var claim2 = item.createStatementForSnak(snak2);
claim2.save(GetClaimSaveEditSummary(claim2));
}
}
public void AddCategoryListOf(Item item, Entity entity, EntityType entityType)
{
if ( !item.Claims.Any(x => x.IsAboutProperty(WikiBase.PropertyIdIsListOf)) )
{
var dataValue = new EntityIdValue(new EntityId(WikiBase.WikiDataItems[entityType]));
var snak = new Snak(SnakType.Value, new EntityId(WikiBase.PropertyIdIsListOf), dataValue);
var claim = item.createStatementForSnak(snak);
claim.save(GetClaimSaveEditSummary(claim));
var dataValue2 = new EntityIdValue(new EntityId(entity.wiki.wikidata));
var qualifier = new Qualifier(claim, SnakType.Value, new EntityId(WikiBase.PropertyIdIsInAdministrativeUnit), dataValue2);
qualifier.Save(GetQualifierSaveEditSummary(qualifier));
}
}
private WikiDataState CheckPropertyMultiValue(Item item, String propertyId, String expectedItemId, Boolean createStatement, out Statement statement)
{
if ( item == null )
throw new ArgumentNullException("item");
WikiDataState result = WikiDataState.Unknown;
if ( String.IsNullOrEmpty(expectedItemId) )
{
statement = null;
return result; // TODO better handling!
}
var entity = new EntityId(expectedItemId);
var dataValue = new EntityIdValue(entity);
var snak = new Snak(SnakType.Value, new EntityId(propertyId), dataValue);
var property = new EntityId(propertyId);
Statement foundStatement = null;
foreach ( var claim in item.Claims.Where(x => property.Equals(x.mainSnak.PropertyId)) )
{
Snak oldSnak = claim.mainSnak;
var oldDataValue = oldSnak.DataValue as EntityIdValue;
if ( oldDataValue.NumericId == dataValue.NumericId )
{
foundStatement = claim as Statement;
result = WikiDataState.Valid;
}
}
if ( foundStatement == null )
{
if ( String.IsNullOrEmpty(expectedItemId) )
{
result = WikiDataState.Valid;
}
else
{
result = WikiDataState.Incomplete;
if ( createStatement )
{
foundStatement = item.createStatementForSnak(snak);
}
}
}
statement = foundStatement;
return result;
}