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WikidataAdapter_body.php
executable file
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WikidataAdapter_body.php
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<?php
if (!defined('MEDIAWIKI')) { die(-1); }
class WikidataAdapter {
public static function executeWikidataAdapterret ( $parser, $frame, $args ) {
global $wgWikidataAdapterValues; // What we do store
$source = null;
$url = null;
if ( isset( $args[0]) && !empty( $args[0] ) ) {
$source = trim( $frame->expand( $args[0] ) );
$vars = explode( ",", $source );
if ( sizeof( $vars ) > 0 ) {
foreach ( $vars as $var ) {
$data = self::retrieveData( $var, true );
if ( array_key_exists( $var, $data ) ) {
if ( ! is_array( $wgWikidataAdapterValues ) ) {
$wgWikidataAdapterValues = array();
}
$wgWikidataAdapterValues[$var] = $data[$var];
}
}
}
}
return;
}
private static function retrieveData( $var, $type=false ) {
global $wgWikidataAdapterUpdateLimit; // Update limit time
$url = self::createURL( $var );
$data = self::processData( $url, $type );
// Send to MySQL
return $data;
}
private static function createURL( $entity ) {
global $wgWikidataAdapterExpose; // Take the configuration
$url = null;
$vars = array();
if ( array_key_exists( "db", $wgWikidataAdapterExpose ) ) {
if ( array_key_exists( "url", $wgWikidataAdapterExpose["db"] ) ) {
$url = $wgWikidataAdapterExpose["db"]["url"];
}
}
if ( ! is_array( $entity ) ) {
array_push( $vars, $entity );
} else {
$vars = $entity;
}
$url = self::processQuery( $url, $vars );
return $url;
}
private static function processQuery( $query, $vars ) {
$iter = 1;
foreach ( $vars as $var ) {
$subst = "#P".$iter;
$query = str_replace( $subst, $var, $query );
$iter++;
}
return $query;
}
private static function processData( $url, $extended=false ) {
global $wgLanguageCode; // Get language code of wiki
$defaultLanguageCode = "en"; // Let's put harcoded default English
$data = array();
// Get JSON
$json = file_get_contents($url);
$obj = json_decode($json, true);
// Get label and description
if ( array_key_exists( "entities", $obj ) ) {
foreach ( $obj['entities'] as $entity ) {
if ( array_key_exists( "id", $entity ) ) {
$data[$entity["id"]] = array();
if ( array_key_exists( "modified", $entity ) ) {
$data[$entity["id"]]["timestamp"] = $entity["modified"];
}
if ( array_key_exists( "labels", $entity ) ) {
foreach ( $entity["labels"] as $keylabel => $label ) {
if ( $keylabel === $wgLanguageCode ) {
$data[$entity["id"]]["label_local"] = $label["value"];
}
if ( $keylabel === $defaultLanguageCode ) {
$data[$entity["id"]]["label"] = $label["value"];
}
}
}
if ( array_key_exists( "descriptions", $entity ) ) {
foreach ( $entity["descriptions"] as $keylabel => $label ) {
if ( $keylabel === $wgLanguageCode ) {
$data[$entity["id"]]["description_local"] = $label["value"];
}
if ( $keylabel === $defaultLanguageCode ) {
$data[$entity["id"]]["description"] = $label["value"];
}
}
}
if ( $extended ) {
if ( array_key_exists( "claims", $entity ) ) {
$data[$entity["id"]]["relations"] = array();
foreach ( $entity["claims"] as $keyclaim => $claims ) {
$labelData = self::retrieveData( $keyclaim, false );
$data[$entity["id"]]["relations"][$keyclaim] = array();
$data[$entity["id"]]["relations"][$keyclaim] = $labelData[$keyclaim];
$data[$entity["id"]]["relations"][$keyclaim]["values"] = array();
$order = 1;
foreach ( $claims as $claim ) {
array_push( $data[$entity["id"]]["relations"][$keyclaim]["values"], array() );
if ( array_key_exists( "mainsnak", $claim ) ) {
$mainsnak = $claim["mainsnak"];
if ( array_key_exists( "snaktype", $mainsnak ) && $mainsnak["snaktype"] === "value" ) {
$datatype = null;
if ( array_key_exists( "datatype", $mainsnak ) ) {
$datatype = $mainsnak["datatype"];
}
if ( array_key_exists( "datavalue", $mainsnak ) ) {
$outValue = self::processDataValue( $mainsnak["datavalue"], $datatype );
// Continue inside
$type = $outValue[0];
$value = $outValue[1];
$text = $outValue[2];
$struct = array();
$struct["order"] = $order;
$struct["datatype"] = $datatype;
$struct["value"] = $value;
$struct["text"] = $text;
$data[$entity["id"]]["relations"][$keyclaim]["values"][$order - 1] = $struct;
}
}
}
if ( array_key_exists( "qualifiers", $claim ) ) {
$qualifiers = $claim["qualifiers"];
$data[$entity["id"]]["relations"][$keyclaim]["values"][$order - 1]["qualifiers"] = array();
foreach ( $qualifiers as $qualifier => $qualifierArray ) {
$data[$entity["id"]]["relations"][$keyclaim]["values"][$order - 1]["qualifiers"][$qualifier] = array();
$labelData = self::retrieveData( $qualifier, false );
$data[$entity["id"]]["relations"][$keyclaim]["values"][$order - 1]["qualifiers"][$qualifier] = $labelData[$qualifier];
$data[$entity["id"]]["relations"][$keyclaim]["values"][$order - 1]["qualifiers"][$qualifier]["values"] = array();
$qorder = 1;
foreach ( $qualifierArray as $qualifierInfo ) {
array_push( $data[$entity["id"]]["relations"][$keyclaim]["values"][$order - 1]["qualifiers"][$qualifier]["values"], array() );
if ( array_key_exists( "snaktype", $qualifierInfo ) && $qualifierInfo["snaktype"] === "value" ) {
$datatype = null;
if ( array_key_exists( "datatype", $qualifierInfo ) ) {
$datatype = $qualifierInfo["datatype"];
}
if ( array_key_exists( "datavalue", $qualifierInfo ) ) {
$outValue = self::processDataValue( $qualifierInfo["datavalue"], $datatype );
// Continue inside
$type = $outValue[0];
$value = $outValue[1];
$text = $outValue[2];
$struct = array();
$struct["order"] = $qorder;
$struct["datatype"] = $datatype;
$struct["value"] = $value;
$struct["text"] = $text;
$data[$entity["id"]]["relations"][$keyclaim]["values"][$order - 1]["qualifiers"][$qualifier]["values"][$qorder - 1] = $struct;
}
}
$qorder++;
}
}
}
$order++;
}
}
}
}
}
}
}
// For each relation the qualifiers
return $data;
}
/** Process datavalue **/
private static function processDataValue( $dataValue, $datatype ) {
$outValue = array();
if ( $datatype === "wikibase-item" ) {
// Process again
$type = $dataValue["type"];
$value = "";
$preValue = $dataValue["value"];
if ( array_key_exists( "id", $preValue ) ) {
$value = $preValue["id"];
}
//Else
if ( !empty( $value ) ) {
$labelData = self::retrieveData( $value, false );
$text = self::retrievePropertyFromEntity( $labelData, $value, "label_local" );
if ( ! $text || empty( $text ) ) {
$text = self::retrievePropertyFromEntity( $labelData, $value, "label" );
}
$outValue = array( $type, $value, $text );
}
} else {
$type = $dataValue["type"];
$text = $dataValue["value"];
$outValue = array( $type, "", $text );
}
return $outValue;
}
// TODO: Check if needed later
private static function retrievePropertyFromEntity( $data, $id, $property ) {
$value = "";
// TODO: Handling more complex properties?
if ( array_key_exists( $id, $data ) ) {
if ( array_key_exists( $property, $data[$id] ) ) {
$value = $data[$id][$property];
}
}
return $value;
}
// Trigger reloading URL
private static function checkTimestamp( $data, $entity, $limit=10000000 ) {
$timestamp = $data[$timestamp]["timestamp"];
// Get data from Database
$entity = self::getDatabaseEntityLabel( $entity );
if ( $entity ) {
if ( array_key_exists( "wda_timestamp", $entity ) ) {
if ( $entity["wda_timestamp"] != $timestamp ) {
return true;
}
}
}
return false;
}
private static function getDatabaseEntityLabel( $entity ) {
$dbr = wfGetDB( DB_SLAVE );
$res = $dbr->select(
array( 'wda_labels' ),
array( 'wda_id', 'wda_label', 'wda_description', 'wda_label_local', 'wda_description_local', 'wda_timestamp' ),
array(
'wda_id' => $entity
),
__METHOD__,
array( 'ORDER BY' => 'wda_timestamp' )
);
if ( $res->numRows() > 0 ) {
return $res->fetchRow();
}
return null;
}
private static function getDatabaseEntityRelations( $entity ) {
$dbr = wfGetDB( DB_SLAVE );
$res = $dbr->select(
array( 'wda_relations' ),
array( 'wda_id', 'wda_property', 'wda_value', 'wda_text', 'wda_order', 'wda_numrefs' ),
array(
'wda_id' => $entity
),
__METHOD__,
array( 'ORDER BY' => 'wda_property, wda_order' )
);
if ( $res->numRows() > 0 ) {
return $res; // TODO: Decide if handle in array or not
}
return null;
}
private static function getDatabaseEntityQualifiers( $entity ) {
$dbr = wfGetDB( DB_SLAVE );
$res = $dbr->select(
array( 'wda_qualifiers' ),
array( 'wda_id', 'wda_property', 'wda_order', 'wda_qualifier', 'wda_qualifier_value', 'wda_qualifier_text' ),
array(
'wda_id' => $entity
),
__METHOD__,
array( 'ORDER BY' => 'wda_property, wda_order, wda_qualifier' )
);
if ( $res->numRows() > 0 ) {
return $res; // TODO: Decide if handle in array or not
}
return null;
}
private static function getOrAddLabels( $data, $values, $check=false ) {
$id = $data["wda_id"];
$values[ $id ] = array();
$values[ $id ]["label"] = $data["wda_label"];
$values[ $id ]["label_local"] = $data["wda_label_local"];
$values[ $id ]["description"] = $data["description"];
$values[ $id ]["description_local"] = $data["description_local"];
$values[ $id ]["timestamp"] = $data["timestamp"];
return $values;
}
private static function getOrAddRelations( $data, $values, $check=false ) {
$id = $data[0]["wda_id"];
$values[ $id ]["relations"] = array();
foreach ( $data as $row ) {
$property = $row["wda_property"];
$order = $row["wda_order"];
$numrefs = $row["wda_numrefs"];
$value = $row["wda_value"];
$text = $row["wda_text"];
if ( ! array_key_exists( $property, $values[ $id ]["relations"] ) ) {
$values[ $id ]["relations"][$property] = array();
}
// TODO: Handle value and text here
// Get property values
$struct = array();
$struct["order"] = $order;
array_push( $values[ $id ]["relations"][$property], $struct );
}
return $values;
}
private static function getOrAddQualifiers( $data, $values, $check=false ) {
$id = $data[0]["wda_id"];
foreach ( $data as $row ) {
$property = $row["wda_property"];
$order = $row["wda_order"];
$qualifier = $row["wda_qualifier"];
$qualifier_value = $row["wda_qualifier_value"];
$qualifier_text = $row["wda_qualifier_text"];
if ( ! array_key_exists( $property, $values[ $id ]["relations"] ) ) {
$values[ $id ]["relations"][$property] = array();
}
if ( ! array_key_exists( $order, $values[ $id ]["relations"][$property] ) ) {
$values[ $id ]["relations"][$property][$order] = array();
}
if ( ! array_key_exists( "qualifiers", $values[ $id ]["relations"][$property][$order] ) ) {
$values[ $id ]["relations"][$property][$order]["qualifiers"] = array();
}
if ( ! array_key_exists( $qualifier, $values[ $id ]["relations"][$property][$order]["qualifiers"] ) ) {
$values[ $id ]["relations"][$property][$order]["qualifiers"][$qualifier] = array();
}
// TODO: Handle value and text here
// Get property values
$struct = array();
array_push( $values[ $id ]["relations"][$property][$order]["qualifiers"][$qualifier], $struct );
}
return $values;
}
private static function removeNull ( $value ) {
if ($value == "NULL") {
$value = "";
}
// Let's strip tags -> TODO: Check if actually it's the case that not
$value = strip_tags( $value );
return($value);
}
/**
* Get the specified index of the array for the specified local
*/
public static function doExternalValue( $parser, $frame, $args ) {
global $wgWikidataAdapterValues;
$output = "";
if ( isset( $args[0] ) && !empty( $args[0] ) ) {
$var = trim( $frame->expand( $args[0] ) );
if ( isset( $args[1] ) && !empty( $args[1] ) ) {
$prop = trim( $frame->expand( $args[1] ) );
$sep = ",";
if ( isset( $args[2] ) && !empty( $args[2] ) ) {
$sep = trim( $frame->expand( $args[2] ) );
}
$values = array();
if ( array_key_exists( $var, $wgWikidataAdapterValues ) ) {
if ( array_key_exists( "relations", $wgWikidataAdapterValues[$var] ) ) {
if ( array_key_exists( $prop, $wgWikidataAdapterValues[$var]["relations"] ) ) {
if ( array_key_exists( "values", $wgWikidataAdapterValues[$var]["relations"][$prop] ) ) {
$values = self::formatValues( $wgWikidataAdapterValues[$var]["relations"][$prop]["values"] );
}
}
// TODO alternative retrievals, instead of code, by label
}
}
$output = implode( $sep, $values );
}
}
return $output;
#return $parser->insertStripItem( $output, $parser->mStripState );
}
private static function formatValues( $values ) {
// TODO More flexible separator
$sep = ",";
$array = array();
foreach ( $values as $value ) {
$format = "text";
if ( array_key_exists( "datatype", $value ) ) {
if ( $value["datatype"] == "time" ) {
$format = "time";
} else {
$format = "text";
}
if ( $format == "text" ) {
if ( array_key_exists( "text", $value ) ) {
array_push( $array, $value["text"] );
}
}
if ( $format == "time" ) {
if ( array_key_exists( "text", $value ) ) {
$timestr = $value["text"];
if ( array_key_exists( "time", $timestr ) ) {
$time = $timestr["time"];
array_push( $array, $time );
}
}
}
}
}
return $array;
}
/**
* Get the specified index of the array for the specified local
*/
public static function doCountValue( $parser, $frame, $args ) {
global $wgWikidataAdapterValues;
$output = 0;
if ( isset( $args[0]) && !empty( $args[0] ) ) {
$var = trim( $frame->expand( $args[0] ) );
$values = array();
foreach ( $wgWikidataAdapterValues as $entry ) {
if ( array_key_exists( $var, $entry ) ) {
if ( !empty( $entry[$var] ) ) {
array_push( $values, $entry[$var] );
}
}
}
$output = count( $values );
}
return $output;
#return $parser->insertStripItem( $output, $parser->mStripState );
}
/**
* Get the specified index of the array for the specified local
*/
public static function doExistsValue( $parser, $frame, $args ) {
global $wgWikidataAdapterValues;
$output = 0;
if ( isset( $args[0]) && !empty( $args[0] ) ) {
$var = trim( $frame->expand( $args[0] ) );
$values = array();
foreach ( $wgWikidataAdapterValues as $entry ) {
if ( array_key_exists( $var, $entry ) ) {
if ( !empty( $entry[$var] ) ) {
array_push( $values, $entry[$var] );
}
}
}
$output = count( $values );
}
if ( $output > 0 ) {
return isset( $args[1] ) ? trim( $frame->expand( $args[1] ) ) : '';
} else {
return isset( $args[2] ) ? trim( $frame->expand( $args[2] ) ) : '';
}
}
/**
* Get the specified index of the array for the specified local
* variable retrieved by #get_external_data
*/
private static function getIndexedValue( $var, $i ) {
global $wgWikidataAdapterValues;
if ( array_key_exists( $var, $wgWikidataAdapterValues[$i] ) ) {
return $wgWikidataAdapterValues[$i][$var];
}
else {
return '';
}
}
/**
* Render the #for_external_table parser function
*/
public static function doForExternalTable( $parser, $frame, $args ) {
global $wgWikidataAdapterValues;
$output = "";
if ( isset( $args[0]) && !empty( $args[0] ) ) {
$expression = trim( $frame->expand( $args[0] ) );
// get the variables used in this expression, get the number
// of values for each, and loop through
$matches = array();
preg_match_all( '/{{{([^}]*)}}}/', $expression, $matches );
$variables = $matches[1];
$num_loops = 0;
$num_loops = max( $num_loops, count( $wgWikidataAdapterValues ) );
// var_dump( $wgWikidataAdapterValues );
for ( $i = 0; $i < $num_loops; $i++ ) {
$cur_expression = $expression;
$allempty = true; // We skip lines with no value
foreach ( $variables as $variable ) {
$prevariable = $variable;
$variable = preg_replace('/@\w+\s*=\s*\w+\s*/','', $variable);
$value = self::getIndexedValue( $variable , $i );
$listpar = explode("@", $prevariable);
$prefix = "";
$template = "";
$scientific = 0;
if ( count( $listpar ) > 1) {
for($k=1; $k<count($listpar); $k=$k+1) {
$extra = trim($listpar[$k]);
$extrav = explode('=', $extra, 2);
if (trim($extrav[0]) == 'prefix') {
$prefix = trim($extrav[1]);
}
if (trim($extrav[0]) == 'template') {
$template = trim($extrav[1]);
}
if (trim($extrav[0]) == 'scientific') {
$scientific = (int) trim($extrav[1]);
}
}
}
if ( !empty( $template ) ) {
if ( $value != '' ) {
$templatevar = "{{".$template."|".$value."}}";
$value = trim( $parser->recursivePreprocess( $templatevar ) );
}
}
// Add Prefix if available
if ( !empty ( $prefix) ) {
$value = $prefix.":".$value;
}
if ( $scientific > 0 ) {
$value = (float) $value;
if ( $value < 1 ) {
$numDecimals = self::numberOfDecimals( $value );
if ( $numDecimals >= $scientific ) {
$value = self::scientificNotation( $value );
}
}
}
$cur_expression = str_replace( '{{{' . $prevariable . '}}}', self::removeNull($value), $cur_expression );
if ( !empty( $value ) ) {
$allempty = false;
}
}
// Fix if empty value -> This way we avoid to clear so often
if ( ! $allempty ) {
$output .= $cur_expression; //TODO: We should parse further here!
}
}
}
return $output;
}
/**
* Render the #for_external_table parser function
*/
public static function doStoreExternalTable( &$parser ) {
global $wgWikidataAdapterValues;
global $wgWikidataAdapterExpose;
global $smwgDefaultStore;
if ( $smwgDefaultStore != 'SMWSQLStore3' && ! class_exists( 'SIOHandler' ) ) {
// If SQLStore3 is not installed, we need SIO.
return EDUtils::formatErrorMessage( 'Semantic Internal Objects is not installed' );
}
$params = func_get_args();
array_shift( $params ); // we already know the $parser...
$expression = implode( '|', $params ); // Let's put all params together
// get the variables used in this expression, get the number
// of values for each, and loop through
$matches = array();
preg_match_all( '/{{{([^}]*)}}}/', $expression, $matches );
$variables = $matches[1];
$num_loops = 0;
$customProps = self::assign_custom_props( array_slice( $params, 1 ) );
$num_loops = max( $num_loops, count( $wgWikidataAdapterValues ) );
for ( $i = 0; $i < $num_loops; $i++ ) {
$internal = array();
// We assign here non parameter ones
$external = self::assign_non_parameters( $params );
foreach ( $variables as $variable ) {
$prevariable = $variable;
$variable = preg_replace('/@\w+\s*=\s*\w+\s*/','', $variable);
$value = self::getIndexedValue( $variable , $i );
$listpar = explode("@", $prevariable);
$prefix = "";
$template = "";
if ( count( $listpar ) > 1) {
for($k=1; $k<count($listpar); $k=$k+1) {
$extra = trim($listpar[$k]);
$extrav = explode('=', $extra, 2);
if (trim($extrav[0]) == 'prefix') {
$prefix = trim($extrav[1]);
}
if (trim($extrav[0]) == 'template') {
$template = trim($extrav[1]);
}
}
}
if ( !empty( $template ) ) {
if ( $value != '' ) {
$templatevar = "{{".$template."|".$value."}}";
$value = trim( $parser->recursivePreprocess( $templatevar ) );
}
}
// Add Prefix if available
if ( !empty ( $prefix) ) {
$value = $prefix.":".$value;
}
// TODO: We should parse further value here
// Here we do the mapping
$partsvar = explode( ".", $listpar[0], 2 ); // We got the one without @
if ( count( $partsvar ) == 2 ) {
if ( ! empty( $value ) ) {
if ( array_key_exists( $partsvar[0].".".$partsvar[1], $customProps ) ) {
$internal[ $customProps[ $partsvar[0].".".$partsvar[1]] ] = $value;
}
else {
if ( array_key_exists( $partsvar[1], $wgWikidataAdapterExpose[$partsvar[0]]["propmap"] ) ) {
$propExposed = $wgWikidataAdapterExpose[$partsvar[0]]["propmap"][$partsvar[1]];
$internal[$propExposed] = $value;
}
}
}
}
}
// If no keys, skip
if ( count( $internal ) == 0 ) {
continue;
}
// We add external to internal. Makes no sense if only external
$internal = array_merge( $internal, $external );
if ( empty( $params[0] ) ) {
// Submitting to Object
if ( $smwgDefaultStore == 'SMWSQLStore3' ) {
self::callObject( $parser, $internal );
}
continue;
}
array_unshift( $internal, $params[0] );
// If SQLStore3 is being used, we can call #subobject -
// that's what #set_internal would call anyway, so
// we're cutting out the middleman.
if ( $smwgDefaultStore == 'SMWSQLStore3' ) {
self::callSubobject( $parser, $internal );
continue;
}
// Add $parser to the beginning of the $params array,
// and pass the whole thing in as arguments to
// doSetInternal, to mimic a call to #set_internal.
array_unshift( $internal, $parser );
// As of PHP 5.3.1, call_user_func_array() requires that
// the function params be references. Workaround via
// http://stackoverflow.com/questions/2045875/pass-by-reference-problem-with-php-5-3-1
$refParams = array();
foreach ( $internal as $key => $value ) {
$refParams[$key] = &$internal[$key];
}
call_user_func_array( array( 'SIOHandler', 'doSetInternal' ), $refParams );
}
return null;
}
/**
* Render the #for_external_table parser function
*/
public static function doFlexStoreExternalTable( &$parser ) {
global $wgWikidataAdapterValues;
global $wgWikidataAdapterExpose;
global $smwgDefaultStore;
if ( $smwgDefaultStore != 'SMWSQLStore3' && ! class_exists( 'SIOHandler' ) ) {
// If SQLStore3 is not installed, we need SIO.
return EDUtils::formatErrorMessage( 'Semantic Internal Objects is not installed' );
}
$params = func_get_args();
array_shift( $params ); // we already know the $parser...
$expression = implode( '|', $params ); // Let's put all params together
$num_loops = 0;
$customProps = self::assign_custom_props_all( array_slice( $params, 1 ) );
$num_loops = max( $num_loops, count( $wgWikidataAdapterValues ) );
for ( $i = 0; $i < $num_loops; $i++ ) {
$internal = self::replaceBioIndex( $customProps, $wgWikidataAdapterValues[$i], $parser );
// If no keys, skip
if ( count( $internal ) == 0 ) {
continue;
}
if ( empty( $params[0] ) ) {
// Submitting to Object