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• Partitioning with preseed help

  - by kostasp

  I have a server that has 4 hds inside all in stadalone configurations (no hardware raid). I want using preseed to create a "regular" partition on disk1 on which i ll install ubuntu and create a raid 0 array with the remainning three disks. Is this possible? Can i use partman-auto/method twice inside the preseed file once for regular and once for raid? I need to use this for unattended provisioning so i need to set my disks inside the preseed file. Thanking you all in advance for your time. Costas

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• How can I do individual file encryption on Dropbox?

  - by Scaine

  I'd like to set a single directory inside Dropbox in which files are encrypted on a file-by-file basis. At the moment, I use a 2Mb Truecrypt container inside my Dropbox which I then have to mount manually, access/change the files within, then unmount manually. At that point, the entire 2Mb uploads to Dropbox. This is a pain for a number of reasons : Dropbox sync will only occur when the Truecrypt container is unmounted, because Dropbox only syncs files that aren't locked and mounting a container locks it. A single byte change to one file inside that container results in the whole 2Mb being uploaded again. It doesn't scale - I was originally using a 10Mb container, but obviously the bigger the container, the longer it takes to sync when it's unmounted. I was wondering if I can somehow use LUKS to implement file-by-file encryption to get round the "container" issues.

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• A way for a file to have its own MD5 inside? Or a string that is it's own MD5?

  - by Eli

  Hi all, In considering several possible solutions to a recent task, I found myself considering how to get a php file that includes it's own MD5 hash. I ended up doing something else, but the question stayed with me. Something along the lines of: <?php echo("Hello, my MD5 is [MD5 OF THIS FILE HERE]"); ?> Whatever placeholder you have in the file, the second you take its MD5 and insert it, you've changed it, which changes it's MD5, etc. Edit: Perhaps I should rephrase my question: Does anyone know if it has been proven impossible, or if there has been any research on an algorithm that would result in a file containing it's own MD5 (or other hash)? I suppose if the MD5 was the only content in the file, then the problem can be restated as how to find a string that is it's own MD5. It may well be impossible for us to create a process that will result in such a thing, but I can't think of any reason the solution itself can't exist. The question is basically whether it really is impossible, simply improbable (on the order of monkeys randomly typing Shakespeare), or actually solvable by somebody smarter than myself.

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• How to add or remove a value inside a table cell on selection / de-selection of checkbox of that row, trying to submit the value via Jquery?

  - by Raul

  Here is the table: <%= form_tag '', :id => "costs" do %> <table class="table table-bordered" id="service_cost"> <% @services.each do |service| %> <tbody> <tr> <td><%= check_box_tag :open_service, {}, false, :class => 'checkable' %></td> <td><%= service.phone %></td> <td><%= service.internet %></td> <td></td> <td></td> <td></td> <td></td> <td></td> <td><%= service.house_keeping %> </td> <td>0.0 </td> <td><%= service.laundry %></td> <td><%= text_field_tag "service_cost", service.total, :class => "input-small" %></td> </tr> <% end %> when the form gets submitted, the javascript gets into action: $("#costs").submit(function(){ formData=$("#costs").serializeArray(); processFormData(formData) return false; }); This ensures form submission on selecting the checkbox: $('.checkable').live('change', function() { $(this).parents('form:first').submit(); }); But, what I am looking for is adding or removing a cell value based on checkbox selection/de-selection and submitting it, kindly suggest a way to do it.

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• foreach Control ctrl in SomePanel.Controls does not get all controls

  - by aron

  Hello, I have a panel with a bunch of labeles and textboxes inside of it. The code: foreach (Control ctrl in this.pnlSolutions.Controls) Seems to only be finding html table inside the panel and 2 liternals. But it does not get the textboxes that are in the html table. Is there a simple way to get all the controls inside of a panel regardless of the nesting? thanks!

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• Basic C++ Header File Question

  - by Vsh3r

  Hi, I have a project with two header files mainwindow.h and website.h. I want to access a method from website.cpp from inside mainwindow.cpp. I can access any function from inside mainwindow by doing Window w then doing w-function(); However, when the function finishes from inside the mainwindow the memory for w is erased. How do I keep w around and HOW DO I DECLARE Website w from my header file? Thanks, V$h3r

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• How to Debug Variables in Smarty like in PHP var_dump()

  - by streetparade

  I have some variables inside a template and i dont know where i assigned them, so i need to know what inside this variable is say i have a var in smarty called member i tryed with {debug} but it didnt work, no popup was shown. How can i debug smarty variables using something like var_dump() inside the templates ?

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• Regarding UNIX Shell Script

  - by arav

  When there is no files inside the folder the below script goes inside the for loop. Not sure what i can modify so that it doesn't go inside the for loop. Also when there is no files inside the directory exit status should be success. Wrapper script checks the exit status of the below script FILESRAW ="/exp/test1/folder" . for fspec in "$FILESRAW"/* ; do echo "$fspec" if [[ -f ${fspec} ]] ; then ..... processing logic else ... processing logic fi done

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• Wpf nesting containers

  - by dortzur

  On a window control, my main container is a grid. My grid has 2 rows, one row definition is 50*, and the other is 250*. Now i want to add a right sidebar, lets say with a StackPanel. I would like to have a ListBox inside the StackPanel that aligns with the 50* grid row, so as the window height gets bigger, the ListBox size will also get bigger. My question is whether i can achieve this behavior while the ListBox is inside the StackPanel (which is nested inside the grid) or must the ListBox be placed directly inside the grid?

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• Best practise when using httplib2.Http() object

  - by tomaz

  I'm writing a pythonic web API wrapper with a class like this import httplib2 import urllib class apiWrapper: def __init__(self): self.http = httplib2.Http() def _http(self, url, method, dict): ''' Im using this wrapper arround the http object all the time inside the class ''' params = urllib.urlencode(dict) response, content = self.http.request(url,params,method) as you can see I'm using the _http() method to simplify the interaction with the httplib2.Http() object. This method is called quite often inside the class and I'm wondering what's the best way to interact with this object: create the object in the __init__ and then reuse it when the _http() method is called (as shown in the code above) or create the httplib2.Http() object inside the method for every call of the _http() method (as shown in the code sample below) import httplib2 import urllib class apiWrapper: def __init__(self): def _http(self, url, method, dict): '''Im using this wrapper arround the http object all the time inside the class''' http = httplib2.Http() params = urllib.urlencode(dict) response, content = http.request(url,params,method)

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• What is the underlying reason for not being able to put arrays of pointers in unsafe structs in C#?

  - by cons

  If one could put an array of pointers to child structs inside unsafe structs in C# like one could in C, constructing complex data structures without the overhead of having one object per node would be a lot easier and less of a time sink, as well as syntactically cleaner and much more readable. Is there a deep architectural reason why fixed arrays inside unsafe structs are only allowed to be composed of "value types" and not pointers? I assume only having explicitly named pointers inside structs must be a deliberate decision to weaken the language, but I can't find any documentation about why this is so, or the reasoning for not allowing pointer arrays inside structs, since I would assume the garbage collector shouldn't care what is going on in structs marked as unsafe. Digital Mars' D handles structs and pointers elegantly in comparison, and I'm missing not being able to rapidly develop succinct data structures; by making references abstract in C# a lot of power seems to have been removed from the language, even though pointers are still there at least in a marketing sense. Maybe I'm wrong to expect languages to become more powerful at representing complex data structures efficiently over time.

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• Use Javascript to copy Text from Label

  - by Josh

  Hello All- Label1 (asp.net control) is located inside Panel1 of my webpage and I have a button called bt. What is the Javascript to copy the Text from Label1 to the clipboard? Thanks, @ artlung, I placed the below code just outside of my form but inside the body. The last line of code I placed inside Panel1 of my form. Anything wrong with this code because nothing happens when I click the Copy to Clipboard button. <script language="JavaScript"> var clip = new ZeroClipboard.Client(); clip.addEventListener( 'mouseDown', function(client) { // set text to copy here clip.setText( document.getElementById('form1.Label1').value ); // alert("mouse down"); } ); clip.glue( 'd_clip_button' ); </script> The next line of code is above the script tags but inside Panel1 in my form <div id="d_clip_button">Copy To Clipboard</div>

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• How do you reference a custom object outside of the function it was created in with JavaScript?

  - by Jack Roscoe

  Hi, I'm currently using JavaScript and jQuery. I have an function which executes once the document is ready, and inside that I am creating objects which contain various attributes. Within the same function, I can access these new object's attributes no problem, however once I'm inside a different function I can't seem to reference them properly and therefore cannot access the objects or the information inside them. What's the correct way to reference the attributes of an object which was created in a different function to the one looking for the information?

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• Plone and Asp.Net Integration

  - by Eduardo

  How to: Make an Asp.Net application to recognize a plone authenticated user (his/her id, roles and any other available data) and vice-versa? Show plone contents inside my asp.net application or show some application-specific data inside plone? Insert plone contents from inside an asp.net application?

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• Getting Stage from within a loaded SWF

  - by Fahim Akhter

  Hi, For the scenario lets consider Car to be the highest SWF(stage) inside I load tyres. Inside tires I have rims. Now if the rims need to be positioned relative to the stage (car body) how can I do that? Inside rims if I write stage and load it results in an error. Any Ideas?

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• ie6 p3p 'file download security warning'

  - by cometta

  i have a page inside iframe, so i set the header to "P3P","CP=\"IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT\"" after that my page inside iframe able to load properly and i able to authenticate user with 'form' post . but on ie6, when i post 'form' inside iframe, i get ie6 message 'file download security warning on javascript file' . those javascript files are put on 'head' of pages inside iframe. how comes ie6 suddenly pop up dialog asking to download those files? anyone know which p3p parameter cause this problem?

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• ExtJS TabPanel content does not shrink in IE6

  - by joshowen

  I'm using ExtJS 3.2 and have content inside of a tab panel, and the tab panel inside of a container in a Viewport. The actual TabPanel resizes correctly on the viewport size changes, but the content inside a panel in the TabPanel seems to be a fixed width and will not shrink when the window is resized.The strange thing is it grows if I increase the window size. How can I get the content inside a Tabpanel to shrink on window resizing. Sorry for this being confusing, my structure is this: Viewport (rendered to body, and sets defaults {monitorResize:true}) - Text Label - TabPanel - Tab - Container (Border Layout) - Panel 1 (Center) - Panel 2 (East) - Panel 3 (South) Thanks in advance!

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• JSF: how to update the list after delete an item of that list

  - by Harry Pham

  It will take a moment for me to explain this, so please stay with me. I have table COMMENT that has OneToMany relationship with itself. @Entity public class Comment(){ ... @ManyToOne(optional=true, fetch=FetchType.LAZY) @JoinColumn(name="REPLYTO_ID") private Comment replyTo; @OneToMany(mappedBy="replyTo", cascade=CascadeType.ALL) private List<Comment> replies = new ArrayList<Comment>(); public void addReply(NewsFeed reply){ replies.add(reply); reply.setReplyTo(this); } public void removeReply(NewsFeed reply){ replies.remove(reply); } } So you can think like this. Each comment can have a List of replies which are also type Comment. Now it is very easy for me to delete the original comment and get the updated list back. All I need to do after delete is this. allComments = myEJB.getAllComments(); //This will query the db and return updated list But I am having problem when trying to delete replies and getting the updated list back. So here is how I delete the replies. Inside my managed bean I have //Before invoke this method, I have the value of originalFeed, and deletedFeed set. //These original comments are display inside a p:dataTable X, and the replies are //displayed inside p:dataTable Y which is inside X. So when I click the delete button //I know which comment I want to delete, and if it is the replies, I will know //which one is its original post public void deleteFeed(){ if(this.deletedFeed != null){ scholarEJB.deleteFeeds(this.deletedFeed); if(this.originalFeed != null){ //Since the originalFeed is not null, this is the `replies` //that I want to delete scholarEJB.removeReply(this.originalFeed, this.deletedFeed); } feeds = scholarEJB.findAllFeed(); } } Then inside my EJB scholarEJB, I have public void removeReply(NewsFeed comment, NewsFeed reply){ comment = em.merge(comment); comment.removeReply(reply); em.persist(comment); } public void deleteFeeds(NewsFeed e){ e = em.find(NewsFeed.class, e.getId()); em.remove(e); } When I get out, the entity (the reply) get correctly removed from the database, but inside the feeds List, reference of that reply still there. It only until I log out and log back in that the reply disappear. Please help

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• Facelet does not convert formatted currency correctly

  - by c0d3x

  Hi, I have the follwing code inside a facelet page: <h:inputNumber value="bean.property"> <f:convertNumber type="currency" /> </h:inputNumber The converter is because there can be a kind of default value inside the input field, which comes from the bean property. Everything is rendered correctly. The value inside the input field is rendered with an "€" character (e.g. "1.453 €". When I submit the form there comes an error up: "nameOfInputField" konnte nicht als ein Geldbetrag erkannt werden '304,00 â¬' In english it is some like: "nameOfInputField" could not be regognized as an amount of money '304,00 â¬' Please have a look at the "€" character. It seems to be printed as "â¬". While it was rendered correctly before submitting the form, now it looks like "â¬" inside the error message and inside the input field. All pages are encoded in UTF-8. What is the reason for this error? How can fix it? Thanks in advance

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• How to dismiss modal view controller from UITabBarController

  - by user563697

  Currently im developing an iPhone Game...When app loaded a login page is seen...when logged in...from login view controller a welcome screen view controller with tabbar(UITabbarcontroller iVar declared inside and connected to tabbarcontroller with interface builder) is presented(using presentModalViewCotroller)..There the first tab is dealing with account ..loaded from accountController NIb and view controller...inside which there's a logout button...when clicked i need to go to login page under loginview controller... Inside logout button click action method...i had coded like this [self dismissModalViewControllerAnimated:NO]; but on button click nothing happening... first : parent--loginviewcontroller child--welcomescreen view controller Inside welcome screen,in account tab,on logout button click: how could i dismiss the above MVC.... can anyone give me a solution as soon as possible...its urgent...

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• accessing view controller's view

  - by Mike

  I am inside a class on a view-based app, one that was creating with one view controller. WHen I am inside the view controller I can access its view using self.view, but how do I access the same view if I am inside a class? [[UIApplication sharedApplication] delegate]... //??? what do I put here? thanks

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• PyLint "Unable to import" error - how to set PYTHONPATH?

  - by Evgeny

  I'm running PyLint from inside Wing IDE on Windows. I have a sub-directory (package) in my project and inside the package I import a module from the top level, ie. __init__.py myapp.py one.py subdir\ __init__.py two.py Inside two.py I have import one and this works fine at runtime, because the top-level directory (from which myapp.py is run) is in the Python path. However, when I run PyLint on two.py it gives me an error: F0401: Unable to import 'one' How do I fix this?

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• Loading data in constructors and not in constructors [JAVA]

  - by Richeve S. Bebedor

  i just want to know the difference between loading the data inside the constructor and loading the data outside the constructor but not inside any methods example: Loading inside constructor public class Model{ Object testobject; public Model(){ testobject=new Object(); } } VS example: Loading outside constructor public class Model{ Object testobject=new Object(); public Model(){ } }

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• Get updated size of QGraphicsView

  - by onurozcelik

  Hi, In my Qt Application I am dynamically creating QGraphicsView(s) and adding them inside a QGridLayout. When I add first view inside grid, the view covers all the available space inside grid. Then I add second view and there are now two equally sized views inside grid. Then I add third view and there are now three equally sized views inside grid. And so on. How can I get updated size of first view? Below is my trial but I think this is not working. //Definition of viewsPerRow static const int viewsPerRow = 3; void window::newViewRequested() { QGraphicsView *view = new QGraphicsView; view->setVisible(true); viewVector.push_back(view); for(int i = viewGrid->count(); i < viewVector.count(); i++) { viewGrid->addWidget(view,i / viewsPerRow ,i % viewsPerRow); } qDebug()<<viewGrid->cellRect(0,0); }

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• jsp-dropdownlist

  - by megala

  hi i have one doubt.how to diplay array values inside drop down list

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