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Editing File: /usr/share/phpmyadmin/js/designer/database.js

var designerTables = [
    {
        name: 'pdf_pages',
        key: 'pgNr',
        autoIncrement: true
    },
    {
        name: 'table_coords',
        key: 'id',
        autoIncrement: true
    }
];

// eslint-disable-next-line no-unused-vars
var DesignerOfflineDB = (function () {
    var designerDB = {};
    var datastore = null;

designerDB.open = function (callback) {
        var version = 1;
        var request = window.indexedDB.open('pma_designer', version);

request.onupgradeneeded = function (e) {
            var db = e.target.result;
            e.target.transaction.onerror = designerDB.onerror;

var t;
            for (t in designerTables) {
                if (db.objectStoreNames.contains(designerTables[t].name)) {
                    db.deleteObjectStore(designerTables[t].name);
                }
            }

for (t in designerTables) {
                db.createObjectStore(designerTables[t].name, {
                    keyPath: designerTables[t].key,
                    autoIncrement: designerTables[t].autoIncrement
                });
            }
        };

request.onsuccess = function (e) {
            datastore = e.target.result;
            if (typeof callback !== 'undefined' && callback !== null) {
                callback(true);
            }
        };

request.onerror = designerDB.onerror;
    };

designerDB.loadObject = function (table, id, callback) {
        var db = datastore;
        var transaction = db.transaction([table], 'readwrite');
        var objStore = transaction.objectStore(table);
        var cursorRequest = objStore.get(parseInt(id));

cursorRequest.onsuccess = function (e) {
            callback(e.target.result);
        };

cursorRequest.onerror = designerDB.onerror;
    };

designerDB.loadAllObjects = function (table, callback) {
        var db = datastore;
        var transaction = db.transaction([table], 'readwrite');
        var objStore = transaction.objectStore(table);
        var keyRange = IDBKeyRange.lowerBound(0);
        var cursorRequest = objStore.openCursor(keyRange);
        var results = [];

transaction.oncomplete = function () {
            callback(results);
        };

cursorRequest.onsuccess = function (e) {
            var result = e.target.result;
            if (Boolean(result) === false) {
                return;
            }
            results.push(result.value);
            result.continue();
        };

cursorRequest.onerror = designerDB.onerror;
    };

designerDB.loadFirstObject = function (table, callback) {
        var db = datastore;
        var transaction = db.transaction([table], 'readwrite');
        var objStore = transaction.objectStore(table);
        var keyRange = IDBKeyRange.lowerBound(0);
        var cursorRequest = objStore.openCursor(keyRange);
        var firstResult = null;

transaction.oncomplete = function () {
            callback(firstResult);
        };

cursorRequest.onsuccess = function (e) {
            var result = e.target.result;
            if (Boolean(result) === false) {
                return;
            }
            firstResult = result.value;
        };

cursorRequest.onerror = designerDB.onerror;
    };

designerDB.addObject = function (table, obj, callback) {
        var db = datastore;
        var transaction = db.transaction([table], 'readwrite');
        var objStore = transaction.objectStore(table);
        var request = objStore.put(obj);

request.onsuccess = function (e) {
            if (typeof callback !== 'undefined' && callback !== null) {
                callback(e.currentTarget.result);
            }
        };

request.onerror = designerDB.onerror;
    };

designerDB.deleteObject = function (table, id, callback) {
        var db = datastore;
        var transaction = db.transaction([table], 'readwrite');
        var objStore = transaction.objectStore(table);
        var request = objStore.delete(parseInt(id));

request.onsuccess = function () {
            if (typeof callback !== 'undefined' && callback !== null) {
                callback(true);
            }
        };

request.onerror = designerDB.onerror;
    };

designerDB.onerror = function (e) {
        // eslint-disable-next-line no-console
        console.log(e);
    };

// Export the designerDB object.
    return designerDB;
}());

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