Find/sort files and folders based on when they were accessed/opened

Question

I'm using ngInfiniteScroll ng-module for my pagination. When i scroll down the page i'm appending 20 records to my data table. By doing that, i'm actually running a http request each time ("not good for performance).

I've been doing some research and came across adding a LimitTo with the ngInfiniteScroll. Not sure how to implement this. Could someone please give me any suggestions.

   <table infinite-scroll='tF.loadMore()' infinite-scroll-disabled='tF.isBusy' infinite-scroll-distance='3' class="responsive">
            <thead>
                <tr>
                    <th>FIRST NAME</th>
                    <th>LAST NAME</th>
                    <th>USERNAME</th>
                    <th>EMAIL</th>
                    <th>CREATED DATE</th>
                    <th>STATUS</th>
                    <th>IS ONLINE</th>
                    <th>ACTIONS</th>
                </tr>
            </thead>
            <tbody>
                <tr ng-repeat="item in tF.items | filter:searchFilter">
                    <td>{{item.FirstName}}</td>
                    <td>{{item.LastName}}</td>
                    <td>{{item.Username}}</td>
                    <td>{{item.Email}}</td>
                    <td>{{item.CreatedDate | date:'medium'}}</td>
                    <td></td>
                    <td></td>
                    <td></td>
                </tr>
            </tbody>
            <tfoot ng-show='tF.isBusy'>
                <tr>
                    <td colspan="9"><spinner show="tF.isBusy" /><span class="bold">{{tF.status}}</span> </td>
                </tr>
            </tfoot>
        </table>

/**** CONTROLLER.JS *****/

    var vm = this;
    var page = 0;
    vm.items = [];
    vm.isBusy = false;

    vm.loadMore = function ()
    {
        if(vm.isBusy) return;
        vm.isBusy = true;

        userService.GetAllRecords(page)
        .success(function (data)
        {
            var results = data;

            for (var i = 0; i < results.length; i++)
            {
                vm.items.push(results[i]);
            }

            page++;
            vm.isBusy = false;

        }.bind(vm))
        .error(function (error)
        {
            vm.status = 'Error retrieving data! ' + error.message;
        })
        .finally(function ()
        {
            vm.isBusy = false;
        });
    }

Solution 1

Well, if they were just browsing your computer, then you are out of luck. NTFS has a "last accessed" attribute, but it is disabled by default on Windows 7. If they changed any files, they would be located under the Date modified. Where were these files located? What kind of permissions are available (ACL)?

Windows DOES by default keep a log of every time a user logs in, unlocks the computer, etc. It would be under the Event Viewer's Audit Log.

Solution 2

On any given folder, in the right pane, right click on the name header and select "more...", then scroll down to "Date Accessed" and tick the box, it will now show the date and time if any thing was written, changed or deleted from the folder (write), it will not show if it was just opened and looked at (read), something has to change for the date to be updated. This will not show you who accessed it, it could be a user or the system itself.

.

To enable Last Accessed (which will time stamp for a read and write), open an elevated command prompt and type this i and hit Enter

There will be a system performance hit if you enable it.

 fsutil behavior set disablelastaccess 0

To disable it

 fsutil behavior set disablelastaccess 1

Comments

[devqon]

If you don't want to load new data everytime, then why use infinite scroll? What is your goal?

[Erkan Demir]

I do want to load new data every time. However i was wondering if there is an alternative way of loading the data instead of calling a http request everytime i scroll. e.g. load all the data once when use the limitTo filter to append the data

[devqon]

Yeah you can load all data at once, and append pieces while scrolling. But I really think a http request is what you would want with an infinite scroll

[Erkan Demir]

Couldn't i just call a http request once, and load all the data to an array. then use limitTo filter to append e.g. + 20 records each time i scroll ?

[tvguide1234]

The files are all located on my 'Local C' drive. I only have 1 user who is an admin so they had full permissions and the computer was already logged in when they went on it.

[surfasb]

Not locked admin account. Game over. Nothing else I can think of by default. Tips for next time? Lock the computer. Window key + L is the shortcut. You can also use the Power Settings to have the computer lock when the monitor goes to sleep. I hope nothing disastrous comes out of this.

[tvguide1234]

Ah damn alright. I'll leave it up for a day few hours to see if anyone else has any ideas. Thanks for the help though!

[surfasb]

Sucks that the "Last access" is off by default for ya. I remember when Microsoft made that decision on Technet. They reasoned that it confused a lot of customers because they were unaware what and why it would change. You would essentially have to give a 2 hour lecture to explain all the possible outcomes on why it would change. Plus it started to affect performance as hard drive sizes ballooned.

[tvguide1234]

Just to confirm, this wouldn't show me any information if someone just browsed through my pictures without changing anything correct?

[Moab]

The first method, no, the second yes, but has to be enabled Before the snoop looked at files. If they opened the pictures in some sort of viewer it may change the "date accessed" time stamp, have not verified this.

[surfasb]

Last accessed time is disabled by default on Windows 7. Plus, opening a picture in some sort of viewer or getting a preview through Explorer WILL change the time. technet.microsoft.com/en-us/library/cc781134(WS.10).aspx

[Erkan Demir]

Hey Joshua, What is the difference of your post with my original code ?

[Joshua Kelly]

tF.loadMore() / tF.isBusy. Without seeing the rest of your code, tF has no reference.

[Erkan Demir]

"tF" is my naming convention. I'm using ControllerAS: in my ui-router state

[Erkan Demir]

The reason why i want to do the http request once is due to i have search filter, and you can only filter by the available records showing not the entire data list. @devqon

[devqon]

Yeah then you can totally do that, but if you have thousands of records that would not be a good idea. You could always do server side filtering with search

[Erkan Demir]

I will probably end up having a million records. What would be a better solution ? @devqon

[yedevtxt]

Does anyone know how much of a performance hit this is? I understand this is a relative and depends kind of question. The benefits seem to be a good thing but does it out weight the performance hit?