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  • Bash script function return value problem

    - by Eedoh
    Hi to all. Can anyone help me return the correct value from a bash script function? Here's my function that should return first (and only) line of the file passed as an argument: LOG_FILE_CREATION_TIME() { return_value=`awk 'NR==1' $1` return return_value } And here's my call of that function in the other script: LOG_FILE_CREATION_TIME "logfile" timestamp=$? echo "Timestamp = $timestamp" I always get some random values with this code. If, for example, there's a value of 62772031 in the "logfile", I get Timestamp = 255 as an output. For some other values in the file, I get other random values as a return value, never the correct one. Any ideas?

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  • Chaining jQuery animations using recursion crashes browser

    - by Rob Sobers
    Here's the basic idea of what I'm trying to do: Set the innerHTML of a DIV to some value X Animate the DIV When the animation finishes, change the value of X and repeat N times If I do this in a loop, what ends up happening is, because the animations occur asynchronously, the loop finishes and the DIV is set to its final value before the animations have had a chance to run for each value of X. As this question notes, the best way to solve this problem is to make a recursive call to the function in the callback handler for the animation. This way the value of the DIV doesn't change until the animation of the previous value is complete. This works perfectly...to a point. If I animate a bunch of these DIVs at the same time, my browser gets overwhelmed and crashes. Too much recursion. Can anyone think of a way to do this without using recursion?

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  • Handling multiple exceptions

    - by the-banana-king
    Hi there, I have written a class which loads configuration objects of my application and keeps track of them so that I can easily write out changes or reload the whole configuration at once with a single method call. However, each configuration object might potentially throw an exception when doing IO, yet I do not want those errors to cancel the overall process so that the other objects are still given a chance to reload/write. Therefore I collect all exceptions which are thrown while iterating over the objects and store them in a super-exception, which is thrown after the loop, since each exception must still be handled and someone has to be notified of what exactly went wrong. However, that approach looks a bit odd to me. Someone out there with a cleaner solution? Here is some code of the mentioned class: public synchronized void store() throws MultipleCauseException { MultipleCauseException me = new MultipleCauseException("unable to store some resources"); for(Resource resource : this.resources.values()) { try { resource.store(); } catch(StoreException e) { me.addCause(e); } } if(me.hasCauses()) throw me; }

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  • Can't write text into textbox in ASP.NET web app

    - by dotnetdev
    Hi, I have an ASP.NET web application. In the codebehind for the .ascx page (which I embed as below), I attempt to write a string to a textbox in a method like this: Code for embedding control: Control ctrl = Page.LoadControl("/RackRecable.ascx"); PlaceHolder1.Controls.Add(ctrl); Method to make string for inserting into textbox: string AppendDetails() { StringBuilder sb = new StringBuilder(); sb.Append("msg" + " " + textbox1.Text etc etc ); return sb.ToString(); } Called as (in codebehind event handler for button click): this.TextBox4.Text = AppendDetails(); I call it by using ATextBox.Text = AppendDetails (in the button click event handler). The textbox TextBox4 is in the designer file so I am confused why the text does not get written into this textbox (it is readonly and enabled). When stepping through, the textbox4 control will successfully show the text I want it to display in quick watch but not in the actual page, it won't. Any ideas? Thanks

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  • How to use a data type (table) defined in another database in SQL2k8?

    - by Victor Rodrigues
    I have a Table Type defined in a database. It is used as a table-valued parameter in a stored procedure. I would like to call this procedure from another database, and in order to pass the parameter, I need to reference this defined type. But when I do DECLARE @table dbOtherDatabase.dbo.TypeName , it tells me that The type name 'dbOtherDatabase.dbo.TypeName' contains more than the maximum number of prefixes. The maximum is 1. How could I reference this table type?

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  • SharpArch.Core.PreconditionException: For better clarity and reliability, Entities with an assigned

    - by Quintin Par
    When I do a save of an entity with assigned id I get a SharpArch.Core.PreconditionException: For better clarity and reliability, Entities with an assigned Id must call Save or Update My class is public class CompanyUserRepository : RepositoryWithTypedId<CompanyUser, string>, ICompanyUserRepository { public override CompanyUser SaveOrUpdate(CompanyUser entity) { var user = base.SaveOrUpdate(entity); //Do some stuff return user; } } How do I go about saving this entity? RepositoryWithTypedId does not expose a Save method Related question. This tells you the reason, but I haven't found out the Sharp Architecture way to do a Save.

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  • errors with gae-sessions and nose

    - by Kekito
    I'm running into a few problems with adding gae-sessions to a relatively mature GAE app. I followed the readme carefully and also looked at the demo. First, just adding the gaesesions directory to my app causes the following error when running tests with nose and nose-gae: Exception ImportError: 'No module named threading' in <bound method local.__del__ of <_threading_local.local object at 0x103e10628>> ignored All the tests run fine so not a big problem but suggests that something isn't right. Next, if I add the following two lines of code: from gaesessions import get_current_session session = get_current_session() I get the following error: Traceback (most recent call last): File "/Users/.../unit_tests.py", line 1421, in testParseFBRequest data = tasks.parse_fb_request(sr) File "/Users/.../tasks.py", line 220, in parse_fb_request session = get_current_session() File "/Users/.../gaesessions/__init__.py", line 36, in get_current_session return _tls.current_session File "/Library/.../python2.7/_threading_local.py", line 193, in __getattribute__ return object.__getattribute__(self, name) AttributeError: 'local' object has no attribute 'current_session' Any suggestions on fixing the above would be greatly appreciated.

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  • [WM6] Owner of a component. What exactly is this for?

    - by kornelijepetak
    I am developing an app for Windows Mobile 6 and there is a CameraCaptureDialog class that enables me to call a camera app from my own application. The class has an Owner property that most examples on the internet set to "this". cam.Owner = this; What exactly does this do? I've seen a similar scenario with Windows Forms components/controls by setting the Parent control. In that case I guess it's used only for layout algorithms, but other than that, is there any useful purpose? I don't see how setting an owner of the CameraCaptureDialog can (and actually does not) make any difference (at least not a visible one). Any insight would be appreciated.

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  • Excel VBA: can delete validation but not add new one

    - by user1882965
    My code is as follows If Cells(Target.Row, 2) = "" And (Cells(Target.Row, 3) = "" Or Cells(Target.Row, 3) = "") Then Sheets("MySheet").Activate Cells(Target.Row, 3).Activate ActiveCell.Validation.Delete If (Cells(Target.Row, 2) = "Type A") Then ActiveCell.Validation.Add Type:=xlValidateList, AlertStyle:=xlValidAlertStop, Operator:=xlBetween, Formula1:="=AvailableVersions" ElseIf (Cells(Target.Row, 2) = "Type B") Then ActiveCell.Validation.Delete Else ActiveCell.Validation.Add Type:=xlValidateWholeNumber, AlertStyle:=xlValidAlertInformation, Formula1:="0", Formula2:="9999999" End If End If So the issue I am having comes whenever I reach ActiveCell.Validation.Add Run Time Error '1004': Application-defined or object-defined error Not a very helpful error, and also this occurs with both number and list validation type, so I am sure it is not an issue with the list itself which has workbook level scope anyway. It never occurs on ActiveCell.Validation.Delete which I find weird? I have been all over google trying to find a solution, and most suggest that it is caused by running dynamic validation code from a button which hogs focus despite the Activate call, but I am running on sheet change event rather than on button press so I don't think this is my issue - any ideas? I've wasted basically a whole day on this! :(

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  • How to Redirect a Python Console output to a QTextBox

    - by krishnanunni
    Hello, I'm working on developing a GUI for the recompilation of Linux kernel. For this I need to implement 4-5 Linux commands from Python. I use Qt as GUI designer. I have successfully implemented the commands using os.system() call. But the output is obtained at the console. The real problem is the output of command is a listing that takes almost 20-25 min continuous printing. How we can transfer this console output to a text box designed in Qt. Can any one help me to implement the setSource() operation in Qt using source as the live console outputs.

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  • How does Linux blocking I/O actually work?

    - by tgguy
    In Linux, when you make a blocking i/o call like read or accept, what actually happens? My thoughts: the process get taken out of the run queue, put into a waiting or blocking state on some wait queue. Then when a tcp connection is made (for accept) or the hard drive is ready or something for a file read, a hardware interrupt is raised which lets those processes waiting to wake up and run (in the case of a file read, how does linux know what processes to awaken, as there could be lots of processes waiting on different files?). Or perhaps instead of hardware interrupts, the individual process itself polls to check availability. Not sure, help?

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  • Ant database rebuild script, avoiding interactive prompting

    - by fras85
    Hi Guys. I'm writing an ant script to rebuild our database i.e. dropping everything and rebuilding from scratch. The problem our DBA adds a Y/N prompt before executing the rest of the script, and therefore we can't call this from an automated build process. Does anyone have any suggestions to circumvent the Y/N prompt? Obviously we could create seperate scripts, one for the DBA's and one for the automated build - but this requires maintaning both. We're running on Windows so it's not as easy as using sed to strip out the prompt...but i'm thinking something along those lines. Not sure if that's clear enough but hope you can help. Cheers.

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  • Ruby on Rails: How best to escape a string in a model?

    - by williamjones
    I want my application to sanitize html on input rather than on display, so that the fields saved into the database are sanitized. I've been doing this with strip_tags, and it was working great. However, this has the downside that it means the user can't input anything that's bracketed with < and . How can I tell Rails in the model to securely escape tags before saving them to the database? I'd like to not have to call h on the sanitized fields again before using them in the views.

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  • jQuery click event still firing on filtered element

    - by Phil.Wheeler
    I'm trying to filter button events based on whether they have a CSS class assigned to them or not. Assume I have a button like this: <button id="save-button" class="ui-state-default ui-corner-all">Save</button> I want to get jQuery to select all buttons that currently do not have a class of "ui-state-disabled". The selector I'm using looks like this: $('#save-button:not(.ui-state-disabled)').click(function() { ... }); When the button is clicked, I'll call a different function, do some stuff and then add the class 'ui-state-disabled' to the button. However the button still continues to accept click events. I'm guessing this is because of two possible causes: The event binder looks only at the initial state when binding the click event and doesn't recognise that a new class has been added later on My filter ['... :not(.ui-state-disabled)] is not correct Any observations?

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  • Avoiding string copying in Lua

    - by Matt Sheppard
    Say I have a C program which wants to call a very simple Lua function with two strings (let's say two comma separated lists, returning true if the lists intersect at all, false if not). The obvious way to do this is to push them onto the stack with lua_pushstring, which works fine, however, from the doc it looks like lua_pushstring but makes a copy of the string for Lua to work with. That means that to cross over to the Lua function is going to require two string copies which I could avoid by rewriting the Lua function in C. Is there any way to arrange things so that the existing C strings could be reused on the Lua side for the sake of performance (or would the strcpy cost pale into insignificance anyway)? From my investigation so far (my first couple of hours looking seriously at Lua), lite userdata seems like the sort of thing I want, but in the form of a string.

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  • In SQL Server merge replication, how does reinitializing work?

    - by Craig Shearer
    I have set up a pull subscription to a merge publication in SQL Server. I use parameterized row filters on some tables. This works fine with the initial synchronization - just the rows using the filter arrive in the replicated (client) database. However, at some later point I'd like to be able to synchronize the replicated database again from the server and have new rows that match the parameterized row filters appear on the client database. The doucmentation seems to indicate that I can call Reinitialize() to do this. However, when I do try this and Synchronize again, I get an error saying that the script 'snapshot.pre' cannot be applied to the database. I've inspected the script and can see why - it's trying to drop some functions are used by the tables in the database. It would appear that for Reinitialize() to work it requires that the database be blank. Am I misunderstanding something here? Is there a way to make this work?

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  • Perl latin-9? Unicode - need to add support

    - by Phill Pafford
    I have an application that is being expanded to the UK and I will need to add support for Latin-9 Unicode. I have done some Googling but found nothing solid as to what is involved in the process. Any tips? Here is some code (Just the bits for Unicode stuff) use Unicode::String qw(utf8 latin1 utf16); # How to call $encoded_txt = $self->unicode_encode($item->{value}); # Function part sub unicode_encode { shift() if ref($_[0]); my $toencode = shift(); return undef unless defined($toencode); Unicode::String->stringify_as("utf8"); my $unicode_str = Unicode::String->new(); # encode Perl UTF-8 string into latin1 Unicode::String # - currently only Basic Latin and Latin 1 Supplement # are supported here due to issues with Unicode::String . $unicode_str->latin1( $toencode ); ... Any help would be great and thanks.

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  • Assigning a material in Blender with a script

    - by Narcolapser
    Question: How do you assign a material with a script to an object in blender? Info: I have this script to import a proprietary model type of mine that is basically a star map with object consisting of a single vertex. in order to make them look like stars and be visible they are all going to have a halo material assigned to them. I'm figuring out how to make this material and give it the values just fine, but I can't seem to get it to assign. I tried the most obvious thing which was: objectName.setMaterial(materialName) but that did nothing. and when i would take an object that had a material and call the getMaterial function on it, it would return nothing. there is something I'm missing here, can some one shed some light on it? Thanks. ~TA

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  • C#, WinForms: What would prevent KeyDown events from chaining up from focused control up to main For

    - by blak3r
    As i understand it, when a keyboard button is pressed it should invoke the KeyDown event for the control which has focus. Then, the KeyDown for the parent control, so on and so forth until it reaches main form. UNLESS - along the chain one of the EventHandlers did: e.SuppressKeyPress = true; e.Handled = true; In my case, KeyDown events never get to the main form. I have Form - Panel - button for example. Panel doesn't offer a KeyDown Event, but it shouldn't stop it from reaching the main form right? Right now as a work around I set every single control to call an event handler I wrote. I'm basically trying to prevent Alt-F4 from closing the application and instead minimize it.

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  • Why don't Domain class static methods work from inside a grails "service"?

    - by ?????
    I want a grails service to be able to access Domain static methods, for queries, etc. For example, in a controller, I can call IncomingCall.count() to get the number of records in table "IncomingCall" but if I try to do this from inside a service, I get the error: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'incomingStatusService': Invocation of init method failed; nested exception is groovy.lang.MissingMethodException: No signature of method: static ms.wdw.tropocontrol.IncomingCall.count() is applicable for argument types: () values: [] How do these methods get injected? There's no magic def statement in a controller that appears to do this. Or is the problem that Hibernate isn't available from my Service class?

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  • How do I set a property to the output of a command in msbuild/xbuild

    - by Nils
    In msbuild/xbuild I'd like to have a "libPath" property which can be ovveridden on the commandline using /p:libpath="/path/to/all/libs". But when this property is undefined I want to call pkg-config --retrieve-Path somePackage to get the current systems path. I thought like here I need the output of a command to be stored in a Property. The command always returns one line of output. I have tryied something like <PropertyGroup> <LibPath /> </PropertyGroup> <Task ....> <Exec Command="pkg-config --retrieve-Path somePackage" Condition="$(LibPath)' == ''"> <OutputTaskParameter="output" PropertyName="LibPath" /> </Exec> </Task> But that didn't work.

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  • What's the correct way to hide/prevent access to wp-admin

    - by Jaypee
    I'm dealing with this matter since a while, I have read a ton of articles and stuff out there but I couldn't find a place that shows the RIGHT way, standard, correct, whatever you like to call it, to prevent access to my wp-admin or wp-login.php On all Wordpress sites I see (the well made ones) you will never see anything if you type thesite.com/wp-admin As I could see, one way to do this is by restricting the access to that folder by creating an .htaccess file and restrict by IP the access to the folder. Seems to be the "cleanest" way to do. What I'm not sure about it is that I have a dynamic address provided by my ISP, so on a certain time my IP will change, that will force me to also change the .htaccess to my new address, I don't see that practical. I can set a range also, but by doing that I will also authorize access to all people within that range of IPs (other clients of my ISP for example). I'm then struggling to find the best/standard way to do this. Anyone can help me? Thanks

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  • Keypress event on inserted span (jQuery)

    - by Coder
    Hi, I've been researching for a long time, and haven't found a possible solution. The problem I have is that I'm trying to attach an event handler to an span element just inserted. So basically the problem is, when a user performs a particular action that I set (clicking a button by example) I call this function: function AppendSpan() { $('#mydiv').append('<span id="someid" contenteditable="true">Some TExt</span>'); //Then I want to handle the keypress event on the inserted span $('#someid').keypress(function(event){//Do something here}); } The problem is that the keypress event is never triggered on the inserted span, I tried with the click event and it works fine, but not the keypress or keydown,keyup events. I also tried with $('span').live("keypress",function(event){//Do something}); but didn't work. Any suggestions would be appreciated, I need this to work only in FF, so no support for IE required.

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  • JSON.Stringify data including boolean values

    - by ancdev
    What I'm trying to do is to pass JSON object to a WebAPI ajax call and mapped to a strongly typed object on the server side. String values are being posted perfectly however when it comes to boolean values, they are not being passed at all. Below is my code: var gsGasolineField = $('.gsGasoline').val(); blData = { Gasoline: gsGasolineField }; var json = JSON.stringify(blData); $.ajax({ type: "POST", url: url, data: json, contentType: "application/json", dataType: "json", statusCode: { 201 /*Created"*/: function (data) { $("#BusinessLayerDialog").dialog("close"); ClearForm("#BusinessLayerForm"); }, 400: /*Bad request - validation error*/ function (data) { $("#BusinessLayerForm").validate().form(); }, 500: function (data) { alert('err'); } }, beforeSend: setHeader }); Gasoline property is of type boolean on the server side.

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  • Post Loading ads from Google Admanager

    - by Prem
    I have changed code around to basically load an add the bottom of the page in a hidden div and attached an onload event handler that called document.getElementById(xxx).appendChild() to take the hidden ad and move it into the right spot in my page. This works GREAT.. however when the ad is a text ad it AFTER i move the ad there is nothing in the rendered Iframe. I did tests to see what it looks like before i move it and sure enough the text links load in the IFRAME but the second i do the appendChild call to move the div that contains the ad i seem to loose the contents of the Iframe. Any ideas whats going on <div id="myad" style="display: none;"> GA_googleFillSlot("MyADSlotName"); </div> <script> window.onload = function() { // leader board document.getElementById('adplaceholder').appendChild(document.getElementById('myAd')); document.getElementById('myAd').style.display = ''; </script

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