User:Abel/common.js

console.log('+');

/*

var personal_data_id = 421;

var wbEStruct = {
		subclassOfRelations: 'claims.P4', // location of P3 relations in wbEntity
		IDPropLoc:	'mainsnak.datavalue.value', // location of ID properties in related entity
		IDName:		'numeric-id', // ID property name which checked 
		qIDPropName: 'id'
				}; 

// check if we are on a page of a loaded Entity
if ( typeof mw.config.values.wbEntity !=  "undefined" ) {
	console.log( "entity is defined" )
	// get wbEntity as json
	var obj = JSON.parse ( mw.config.values.wbEntity );
	console.log( "parsed object" )
	// check if we have P3 relations and iterate through
	if ( typeof check( obj, wbEStruct["subclassOfRelations"] ) != "undefined" ) {
		console.log( "object has 'subclass of' relations" );
		for( var i = 0; i < dive( obj, wbEStruct["subclassOfRelations"] ).length; i++ ) {
			console.log("dived in");		
			// check if we have controller id constructed from wbEntity 
			if( dive( dive( obj, wbEStruct["subclassOfRelations"])[i] , wbEStruct["IDPropLoc"])[wbEStruct["IDName"]] === personal_data_id ) {
				console.log( "it's a storable personal data" )		
				var qId = obj[wbEStruct["qIDPropName"]];
				

                                console.log(qId);

			}
		}
	}
	// Else let's do nothing;
}

function indexinterpolate(obj,i) { return  (obj[i] != undefined) ? obj[i] : obj}; 

// helper function for checking a part of an array exists
function indexcheck(obj,i) {  return  (obj[i] != undefined) ? obj[i] : undefined };

// dive selects matrix.a.b.c.d from the array called matrix and 'a.b.c.d' as string
// if a.b.c.d does not exists, it returns the substructure until the substructure exists, if d does not exist, it returns matrix.a.b.c e.g.

function dive(array, read){
	return read.split('.').reduce(indexinterpolate, array);
}

function check(array, read){
        return read.split('.').reduce(indexcheck, array);
}

*/

var PersonalDataDataBaseName = "pdio";
var Pete = {id: 11345, name: {first: "Pete", last: "Rock"}, age: 52};

addRecord(PersonalDataDataBaseName, Pete);
recordUpdate(PersonalDataDataBaseName, ["Pete", "Rock"], 'phone', '+313555777');

function addRecord(pddbname, record){
  var pddb = window.indexedDB.open(pddbname, 1);

  pddb.onupgradeneeded = function() {
    var db = pddb.result;
    var store = db.createObjectStore("MyObjectStore", {keyPath: "id"});
    var index = store.createIndex("NameIndex", ["name.last", "name.first"]);
  };

  pddb.onsuccess = function() {
    var db = pddb.result;
    var tx = db.transaction("MyObjectStore", "readwrite");
    var store = tx.objectStore("MyObjectStore");
    var index = store.index("NameIndex");  
  
    store.put(record);

    tx.oncomplete = function() {
      db.close();
    };  
  };
};

function recordUpdate(pddbname, record, field, value){

  var pddb = window.indexedDB.open(pddbname, 1);

  pddb.addEventListener('error', (event) => {
    console.log('Request error:', pddb.error);
  }, false);

  pddb.onupgradeneeded = function() {
    var db = pddb.result;
    var store = db.createObjectStore("MyObjectStore", {keyPath: "id"});
    var index = store.createIndex("NameIndex", ["name.last", "name.first"]);
  };

  pddb.onsuccess = function() {
        // Start a new transaction
        var db = pddb.result;
        var tx = db.transaction("MyObjectStore", "readwrite");
        var store = tx.objectStore("MyObjectStore");
        var index = store.index("NameIndex");

        var getRecord = index.get(record);
        getRecord.onsuccess = function() {
          console.log("updating");
            getRecord.result.field = value;   // => "Bob"
            store.put(getRecord.result);

            getRecordAgain = index.get(record);
            getRecordAgain.onsuccess = function() {
                console.log(getRecordAgain.result.field);   // => "Bob"
                if ( getRecordAgain.result.field == value ) { 
                  console.log("update succeeded");
                } else {
                  console.log("update unsuccessful");
                }
              };   
            };


      // Close the db when the transaction is done
      tx.oncomplete = function() {
        db.close();
      };
    };
  };