We Keep Coding

filtering user has permissions. with SQL & JS

I'm trying to filter what my user sees based on his user type. I have 3 user types as options in the database. Currently, I have an array filtering out everything other than "National Liaison Representative" which works. Though I need it to also filter the children within this called "nation" table. based on the user nation associated. I'm not sure if this is the best option or if there is a way to write an mySQL script and do it on the backend. I'm open to all suggestions questions or comments.
console.log(reportingJSONObject);
// Loop on directorates
for (var i = 0; i < reportingJSONObject.tree.length; i++) {
// if isNLR, and not national liason rep skip
//hr_directory has an associated nation connected by nation
var directorateObject = reportingJSONObject.tree[i];
// var userNation = response.data.nation
if (is_nlr=true) {
console.log("isNLR");
if (directorateObject.name != "National Liaison Representative")
{
console.log("skipping entry " + directorateObject.name);
continue;
}
// gets rid of directorate entirely
// if (directorate = directorateObject.name) {
// continue;
// }
//
// if (currentVue.nation = userNation) {
// continue;
// }
};

It is often the case that both sides have some knowledge of user identity and permissions. The JS code might present data differently ("use a different template," etc.) based on the identity and permissions. Meanwhile, the host is the authority: it limits the API calls that may be used and determines what is returned by each of them. It also provides API calls which the JS code uses to determine what the current user's privileges are.
Actions must be ultimately vetted by the host. It must not be possible for an unauthorized user to succeed in executing a host call that he is not authorized to use, and only the host knows if he is or isn't. The client side is never the authority.

Stored procedure azure Cosmos DB returns empty collection

I tried to create a stored procedure using the sample sp creation code from Azure docs, but i couldn't fetch the collection details. It always returns null.
Stored Procedure
// SAMPLE STORED PROCEDURE
function sample(prefix) {
var collection = getContext().getCollection();
console.log(JSON.stringify(collection));
// Query documents and take 1st item.
var isAccepted = collection.queryDocuments(
collection.getSelfLink(),
'SELECT * FROM root r',
function (err, feed, options) {
if (err) throw err;
// Check the feed and if empty, set the body to 'no docs found',
// else take 1st element from feed
if (!feed || !feed.length) {
var response = getContext().getResponse();
response.setBody('no docs found');
}
else {
var response = getContext().getResponse();
var body = { prefix: prefix, feed: feed[0] };
response.setBody(JSON.stringify(body));
}
});
if (!isAccepted) throw new Error('The query was not accepted by the server.');
}
The console shows only this.
the results shows no doc found because of not getting collection.I have passed the partition key at time of execution via explorer.

I had a similar issue. I think the Azure portal doesn't execute stored procedures properly when the partition key is not a string.
In my case I had a partitionKey that is a number. When I executed the stored procedure via the portal I always got an empty resultSet, even though I had documents in my database. When I changed the structure a little, and made my partitionKey a string, the stored procedure worked fine.

Did you create the ToDoList Database with the Items Collection? Yo can do this from the Quick start blade in the Azure portal.
And then create an SP to run against that collection. There is no partition key required, so no additional params are required (leave blank).
The Collection is created without any documents. You may choose to add documents via the Query Explorer blade or via the sample ToDoList App that is available via the Quick start blade.

You are debugging in a wrong way.
It is perfectly fine to see "{\"spatial\":{}}" in your console log, even if the collection has items. Why? well because that is a property of that object.
So regarding what you said:
the results shows no doc found because of not getting collection
is false. I have the same console log text, but I have items in my collection.
I have 2 scenarios for why your stored procedure return no items:
I had the same issue trying on azure portal UI(in browser) and for my surprise I had to insert an item without the KEY in order that my stored procedure to see it.
On code you specify the partition as a string ie. new PartitionKey("/UserId") instead of your object ie. new PartitionKey(stock.UserId)

Lotus notes automation from browser

I have been trying to automate Lotus Notes mail fillup from a browser interface.
After refering to Richard Schwartz's answer, i came up with this piece of code using the Lotus.NotesSession class.
function SendScriptMail() {
var mToMail = document.getElementById('txtMailId').value
var mSub = document.getElementById('txtSubject').value
var mMsg = document.getElementById('txtContent').value
var Password = "yyy"
alert("1");
var MailFileServer = "xxx.com"
var MailFile = "C:\Program Files\IBM\Lotus\Notes\mail\user.nsf"
alert("2")
var Session;
var Maildb;
var UI;
var NewMail;
var From = "user#xxx.com"
try {
alert("3")
// Create the Activex object for NotesSession
Session = new ActiveXObject("Lotus.NotesSession");
alert("4")
if (Session == null) {
throw ("NoSession");
} else {
Session.Initialize(Password);
// Get mail database
Maildb = Session.GetDatabase(MailFileServer, MailFile);
alert("5")
if (Maildb == null) {
throw ("NoMaildb");
} else {
NewMail = MailDB.CreateDocument();
if (MailDoc == null) {
throw ('NoMailDoc');
} else {
// Populate the fields
NewMail.AppendItemValue("Form", "Memo")
NewMail.AppendItemValue("SendTo", mToMail)
NewMail.AppendItemValue("From", From)
NewMail.AppendItemValue("Subject", mSub)
NewMail.AppendItemValue("Body", mMsg)
NewMail.Save(True, False)
NewMail.Send(False)
}
}
}
} catch (err) {
// feel free to improve error handling...
alert('Error while sending mail');
}
}
But now, alerts 1,2,3 are being trigerrd, and then the counter moves to the catch block. The lotus notes session is not being started.
In a powershell script that I was previously looking at there was a code regsvr32 "$NotesInstallDir\nlsxbe.dll" /s that was used before the Session = new ActiveXObject("Lotus.NotesSession");. Is there something similar in javascript too, if so how do i invoke that dll.
I think I've realised where I am going wrong. According to me, upto alert("5") things are good. But since Lotus.NotesSession doesn't have a CreateDocument() method, it is throwing the error. I am not sure how to create the document and populate the values though.

Since you've chosen to use the Notes.NotesUIWorkspace class, you are working with the Notes client front-end. It's running, and your users see what's happening on the screen. Are you aware that there's a set of back-end classes (rooted in Lotus.NotesSession) instead of Notes.NotesSession and Notes.NotesUIWorkspace) that work directly with Notes database data, without causing the Notes client to grab focus and display everything that you're doing?
Working with the front-end means that in some cases (depending on the version of Notes that you are working with) you're not going to be working directly with the field names that are standard in Notes messages as stored and as seen in the back-end. You're going to be working with names used as temporary inputs in the form that is used to view and edit the message. You can see these names by using Domino Designer to view the Memo form.
Instead of using 'SendTo', try using:
MailDoc.Fieldsettext('EnterSendTo', mToMail)
Regarding the Body field, there's no temporary field involved, however you haven't really explained the difficulty you are having. Do you not know how to display the interface that you want in the browser? Do you not know how to combine different inputs into a single FieldSetText call? Or are you just dissatisfied with the fact that FieldSetText can't do any fancy formatting? In the latter case, to get more formatting capability you may want to switch to using the back-end classes, which give you access to the NotesRichTextItem class, which has more formatting capabilities.

How to delete a database in WebSQL programmatically?

I am new to Web SQL database and I use it to save data in a local database in a web page.
　I can create a database by
var db = openDatabase('database', '1.0', 'my database', 2 * 1024 * 1024);
　and I can create a table by doing this
db.transaction(function (tx) {
tx.executeSql('CREATE TABLE IF NOT EXISTS mytable (blah,blah)');
});
　I can delete the table by
db.transaction(function (tx) {
tx.executeSql('DROP TABLE mytable');
});
　but is there a way to delete the database programmatically?

Using PersistenceJS there is a persistence.reset API which will wipe the database clean.
PersistenceJS Site
For developing / testing purposes, you can view content and delete webSQL, IndexedDB, cookies, etc by searching for your domain name at this URL in Chrome:
chrome://settings/cookies
There, you can delete all the storage for a domain or just certain local storage entities. Yes, the URL implies just 'cookies', but the interface at this URL includes all types of offline storage.
It would be great I think if the Chrome developer tools interface had the ability to right-click and delete a data storage entity in the Resources tab along with inspecting the content. But for now, all I know of is the settings/cookies URL.

Spec says:
4.1 Databases
Each origin has an associated set of databases. Each database has a name and a current version. There is no way to enumerate or delete the databases available for an origin from this API.

I am developing a phonegap+jquery-mobile+KO app with offline storage using web sql via persistencejs, and jasmine js for BDD.
I'm working on some sort of "database cleaner" to be executed after each spec. When I was searching on how to drop a web sql database I read the reply https://stackoverflow.com/a/10929725/667598 (in this thread/question), and went to see what's in that directory (Mac OS X).
cd ~/Library/Application\ Support/Google/Chrome/Default/databases
Inside you will see a Databases.db SQLite3 database, and directories for each origin. These directories are named with the pattern protocol_host_somenumber (I don't know what that number is). So for example, in my case, since my apps are just files I open in Google Chrome with the file:/// … protocol, I can see a file__0 directory. And for twitter and I can also see a http_twitter.com_0 and a https_twitter.com_0.
Inside this directories all file names are just numbers. For example inside file__0 I found a file named 8 and another named 9. In my case, these files are websql database. I don't know if there also Indexed DB databases in chrome's Default/databases dir.
With this names it is a little hard to guess what database is what. You can open the database and you'll have to infer the app or site via its tables and data.
Luckily, the Databases.db I mentioned before is a mapping between those files named with numbers and the databases.
You can open the Databases.db and any other web sql file with the sqlite3 command
sqlite3 Databases.db
Obviously, once inside the sqlite3 shell, is handy to have some SQL knowledge. Anyway, it is also always handy some help, which is available via the command
.help
With the command .tables you can list tables in the database. Inside this Databases.db we can find the tables Databases and meta. The important one is Databases, so with a
select * from Databases;
we can see the mapping between the databases and their files. For example
7|http_jquerymobile.com_0|testdb|html5 test db|200000
8|file__0|elfaro_dev|Base de datos de ElFaro para desarrollo|734003200
The first column is the id of the table which is the number used for db file names, the second is the origin (the directory) the other columns are the db name, the db description and the estimated size used when creating the db from the Javascript API.
So to actually delete a database what I did was to delete it from this table, for example:
delete from Databases where id = 8
And then delete the actual file from the filesystem (outside sqlite3 shell)
rm file__0/8
And that's it.
PS: I know this is a too long answer for a simple subject but I just needed to flush this from my system and back it up somewhere like SO or a blog.

The developer options
There is no way to enumerate or delete the databases programmatically (yet).
Chrome developers can navigate to chrome://settings/cookies search and delete any database
Opera developers can navigate to opera://settings/cookies
The only way to truly delete a database (and everything else)
A new Spec says this might be possible in the feature with both response header and javascript.
The disadvantages is that you can't control what is being deleted, So you would need to create a backup first of everything else unless you want to clear everything
2.1.3. The storage parameter
The storage parameter indicates that the server wishes to remove locally stored data associated with the origin of a particular response’s url. This includes storage mechansims such as (localStorage, sessionStorage, [INDEXEDDB], [WEBDATABASE], etc), as well as tangentially related mechainsm such as service worker registrations.
Js:
navigator.storage.clear({
types: [ "storage" ],
includeSubdomains: true // false by default
});
Response header:
res.header("Clear-Site-Data", "storage; includeSubdomains");
But this is not avalible to any browser yet...
Best solution for clients (not the developers)
/* This will fetch all tables from sqlite_master
* except some few we can't delete.
* It will then drop (delete) all tables.
* as a final touch, it is going to change the database
* version to "", which is the same thing you would get if
* you would check if it the database were just created
*
* #param name [string] - the database to delete
* #param cb [function] - the callback when it's done
*/
function dropDatabase(name, cb){
// empty string means: I do not care what version, desc, size the db is
var db = openDatabase(name, "", "", "");
function error(tx, err){
console.log(err);
}
db.transaction(ts => {
// query all tabels from sqlite_master that we have created and can modify
var query = "SELECT * FROM sqlite_master WHERE name NOT LIKE 'sqlite\\_%' escape '\\' AND name NOT LIKE '\\_%' escape '\\'";
var args = [];
var success = (tx, result) => {
var rows, i, n, name;
rows = result.rows;
n = i = rows.length;
// invokes cb once it’s called n times
function after(){
if (--n < 0) {
// Change the database version back to empty string
// (same as when we compear new database creations)
db.changeVersion(db.version, "", function(){}, error, cb);
}
}
while(i--){
// drop all tabels and calls after() each time
name = JSON.stringify(rows.item(i).name);
tx.executeSql('DROP TABLE ' + name, [], after, error);
}
// call it just 1 more extra time incase we didn't get any tabels
after();
};
ts.executeSql(query, args, success, error);
});
}
Usage
dropDatabase("database", function(){
console.log("done")
});

The localdatabase files are stored in your Windows user settings under Application Data > Google > Chrome > User Data > Default > databases.
So manually deleting them is theoretically possible. This is only useful while testing / developing on your own computer, since when another user opens your app/site, it is unlikely to have file system access.
However, even though you can find the files and delete them, the data sticks around. I've tried it with Chrome both open and closed and all chrome processes ended, and yet the browser inspector keeps showing me my old database with all the unwanted fields and data in it.

This is answered in HTML5 database storage (SQL lite) - few questions.
To summarize:
Currently no way to drop a WebSQL database.
Probably use Indexed DB or localStorage instead.

In my library implementation, I just delete all tables. Which, indeed, delete the database. List of tables are select * from sqlite_master.

Please note that if you use multiple
tx.executeSql('DROP TABLE mytable');
statements in the same transaction callback then make sure that they all exist or consider using DROP TABLE IF EXISTS syntax instead. If even one table doesn't exist when you try to drop it will result in the entire transaction failing. This failure results in a rollback of the transaction and means that the data will stay in your database even when you thought that it should have been deleted. There is no error reported unless you're specifically listening for it in the executeSql's 4th argument which is an error callback. This is intended behavior but is, in my experience, confusing.

No method to delete the existing database in websql it will clear when the cache is cleared or
The browser is closed. If you want to create a database with the same name Just use openDatabase Method It will first check for the existence of the database with the same name. If not exists it will create one otherwise it will open the existing one
please follow this link http://html5doctor.com/introducing-web-sql-databases/

synchronizing executeSql in Safari (WebKit) Web Sql database

WebKit (Safari 4+ is my focus) has a feature called Web SQL.
Web SQL is specified in the W3C draft.
Currently only the asynchronous flavor is supported.
I have a situation where I want to synchronize a few different operations - writing to database (using CREATE TABLE query and then a loop through INSERT queries) and then reading from the database. How do I do this? I googled and read a lot of tutorials, but did not find any explanation of that.
If I can't find answer to this, I shall try the Worker feature and if unsuccessful I plan to store the data in webstorage (localstorage) instead.

I have written a possible solution for this in my blog. Don't know if that would fit your problem, but have a look.
http://wander-mind.blogspot.com/2011/03/how-to-synchronize-html5-websql-with.html

Seems that nbody answers this. My current undertanding is that storing a block in localstorage is the best

You chain the operations through success callbacks. That way you can be sure of the order of operations. See the example code available in this article.
You can use the callbacks available for the transaction object or the individual queries, tx.executeSql(sql, [], callback, errorCallback).
var sql_createTables = "CREATE .....",
sql_inserts= "INSERT .....";
function errorHandler(tx, error) {
//do error handling
}
db.transaction(
function(tx){
tx.executeSql(sql_createTables,[], function(tx, result){
//The table was created
tx.executeSql(sql_inserts,[], function(tx, result){
// Inserts completed
});
},
errorHandler);
}, function(error) { alert("Oh, noes! The whole transaction failed!"); },
function() { alert("Yeah, baby! We did it."); });
WebWorker has nothing to do with this, and will not help you in any way, as a WebWorker has no access to the DOM, of which localStorage and WebSql are parts.