@Hannolans

So, there is currently an example in the README that shows how to create a statement (for a string value)

$statementCreator->create(
    new PropertyValueSnak(
        PropertyId::newFromNumber( 1320 ),
        new StringValue( 'New String Value' )
    ),
    'Q777'
);

The StringValue object can be replaced by any object that extends DataValueObject.
So for linking to another entity it needs to be an EntityIdValue.
This needs to be changed to something like:

$statementCreator->create(
    new PropertyValueSnak(
        PropertyId::newFromNumber( 1320 ),
        new EntityIdValue( new ItemId( 'Q99499' ) )
    ),
    'Q777'
);

I'll try and work on documentation soon, it would be great if others could also make PRs with their learnings though!

Thanks. In the documentation there is also described to create a new item. in the above example an existing item Q777 is used. What if you create a new item and no qid is available?

Below is the code I have. Adding a string works for new items, but adding a qid not. I used getStatements()->addNewStatement to be able to add it to the new item without a qid.

//Create a new empty item.
$saver = $wbFactory->newRevisionSaver();
$statementCreator = $wbFactory->newStatementCreator();
$edit = new Revision(    new ItemContent( Item::newEmpty() ));
$edit->getContent()->getData()->setDescription( 'nl', 'Kunstenaar');
$edit->getContent()->getData()->setLabel( 'nl', $author->title);

//set RKD id
$edit->getContent()->getData()->getStatements()->addNewStatement(
			 new PropertyValueSnak(PropertyId::newFromNumber( '650'), new StringValue( $rkd_id ))
     );

//human
$edit->getContent()->getData()->getStatements()->addNewStatement(
			 new PropertyValueSnak(PropertyId::newFromNumber( '31' ), new EntityIdValue( new ItemId( 'Q5' )) )
     );

$saver->save( $edit);

Hmmm, I believe that should work.
To make it cleaner to read you can also do.

$saver = $wbFactory->newRevisionSaver();
$statementCreator = $wbFactory->newStatementCreator();

$newItem = Item::newEmpty();
$newItem->getStatements()->addNewStatement( new PropertyValueSnak(PropertyId::newFromNumber( '650'), new StringValue( $rkd_id )));
//etc.

$edit = new Revision(    new ItemContent( $item ));
$saver->save( $edit);

What actually happens with the code you posted above?

I had to add 'use Wikibase\DataModel\Entity\ItemId;' now it works.

@Addshore thanks for your code suggestions.

Hi

I am a newbie, and I wanted to work on this, can u assign it to me.

Hi,

Can i actually know where the documentation folder was present?

In T160732#3861423, @Dheerajmalisetty wrote:

Hi,

Can i actually know where the documentation folder was present?

https://github.com/addwiki/wikibase-api/blob/master/README.md

In T160732#3861448, @Mbch331 wrote:

In T160732#3861423, @Dheerajmalisetty wrote:

Hi,

Can i actually know where the documentation folder was present?

https://github.com/addwiki/wikibase-api/blob/master/README.md

Thank you,
above link provides how to create a statement, but according to question we need to describe in the documentation 'how to declare "is human" is item'.

Declaring that an item is a human is a statement.

Maybe @Addshore or @Hannolans can explain where this needs to be documented. I linked the readme for the library this ticket is about.

So the example in the README currently uses a String value

new StringValue( 'New String Value' )

For a statement, for example, instance of, an EntityIdValue will need to be used.

The constructor for EntityIdValue is as follows:

	public function __construct( EntityId $entityId ) {
		$this->entityId = $entityId;
	}

Do it will be something like:

new EntityIdValue( $itemId )

Should I clone the wikidata seperately or is it to work in wikibase?

Is this bug related to wikimedia?

@Dheerajmalisetty: The project tags of this task show that this task is about https://phabricator.wikimedia.org/project/profile/1490/ . For general questions not directly related to this task, please see https://www.mediawiki.org/wiki/How_to_become_a_MediaWiki_hacker#Feedback.2C_questions_and_support - thanks