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  • Variable directory names over SCP

    - by nedm
    We have a backup routine that previously ran from one disk to another on the same server, but have recently moved the source data to a remote server and are trying to replicate the job via scp. We need to run the script on the target server, and we've set up key-based scp (no username/password required) between the two servers. Using scp to copy specific files and directories works perfectly: scp -r -p -B [email protected]:/mnt/disk1/bsource/filename.txt /mnt/disk2/btarget/ However, our previous routine iterates through directories on the source disk to determine which files to copy, then runs them individually through gpg encryption. Is there any way to do this only by using scp? Again, this script needs to run from the target server, and the user the job runs under only has scp (no ssh) access to the target system. The old job would look something like this: #Change to source dir cd /mnt/disk1 #Create variable to store # directories named by date YYYYMMDD j="20000101/" #Iterate though directories in the current dir # to get the most recent folder name for i in $(ls -d */); do if [ "$j" \< "$i" ]; then j=${i%/*} fi done #Encrypt individual files from $j to target directory cd ./${j%%}/bsource/ for k in $(ls -p | grep -v /$); do sudo /usr/bin/gpg -e -r "Backup Key" --batch --no-tty -o "/mnt/disk2/btarget/$k.gpg" "$/mnt/disk1/$j/bsource/$k" done Can anyone suggest how to do this via scp from the target system? Thanks in advance.

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  • Variable Assignment for arguments with a for loop

    - by RainbowDashDC
    Alright, so, I've searched quite a bit on how to do this but I've given up as I simply couldn't find anything. So, I have a code (below); it's main purpose is to get 9 arguments and assign them as a variable-- ignore the echo's and pipping. My question is: How can I simplfy this with a for loop or such so it doesn't take as much code, and if possible, have more than 9 arguments aswell set pkg1=%1 set pkg2=%2 set pkg3=%3 set pkg4=%4 set pkg5=%5 set pkg6=%6 set pkg7=%7 set pkg8=%8 set pkg9=%9 IF DEFINED pkg1 (echo %1.ini 1> %WINGET_TEMP%\args.rdc 2>nul) IF DEFINED pkg2 (echo %2.ini 1>> %WINGET_TEMP%\args.rdc 2>nul) IF DEFINED pkg3 (echo %3.ini 1>> %WINGET_TEMP%\args.rdc 2>nul) IF DEFINED pkg4 (echo %4.ini 1>> %WINGET_TEMP%\args.rdc 2>nul) IF DEFINED pkg5 (echo %5.ini 1>> %WINGET_TEMP%\args.rdc 2>nul) IF DEFINED pkg6 (echo %6.ini 1>> %WINGET_TEMP%\args.rdc 2>nul) IF DEFINED pkg7 (echo %7.ini 1>> %WINGET_TEMP%\args.rdc 2>nul) IF DEFINED pkg8 (echo %8.ini 1>> %WINGET_TEMP%\args.rdc 2>nul) IF DEFINED pkg9 (echo %9.ini 1>> %WINGET_TEMP%\args.rdc 2>nul)

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  • C# lost local variable window from debug (f11 step by step)

    - by Jane
    I was running my code (visual studio 2010) and I accidentally closed the window that shows the state of variables step by step. I think it was called locals but I can't find it on any of the menu option. Would appreciate any help on this, I didn't realize how handy it was until now - The following link is what my local window looks like when selecting debug/start debugging/selecting breakpoints, which I'm don't find helpful. This is what my window used to look like: http://www.google.co.nz/imgresum=1&hl=en&sa=N&biw=1600&bih=761&tbm=isch&tbnid=Sa5AmVW5BxxakM:&imgrefurl=http://www.codeproject.com/Articles/79508/Mastering-Debugging-in-Visual-Studio-2010-A-Beginn&docid=4Iskh8P-E7oVSM&imgurl=http://www.codeproject.com/KB/cs/MasteringInDebugging/debug30_small.png&w=640&h=228&ei=TjKBUKGwKcXVsgauvIGYDQ&zoom=1&iact=hc&vpx=1119&vpy=441&dur=1559&hovh=134&hovw=376&tx=219&ty=79&sig=104270260849502265426&page=1&tbnh=91&tbnw=256&start=0&ndsp=22&ved=1t:429,r:0,s:20,i:134 It's probably a mode/option within debugging I need to select but I can't figure out how to get it back to the nice and simple variable state display..

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  • SSIS Intermittent variable error: The system cannot find the file specified

    - by Ben
    Our SSIS pacakges a structured as one Control package and many child packages (about 30) that are invoked from the control package. The child packages are invoked with Execute Package Task. There is one Execute Package Task per child package. Each Execute Package Task uses File Connection Manager to specify path to the child package dtsx file. There is one File Connection Manager per child package. Each File Connection Manager has an expression defined for ConnectionString property. This expression looks like this: @[Template::FolderPackages]+"MyPackage.dtsx", the file name is different for each package. The variable (FolderPackages) is specified in the SSIS package configuration file. The error that is generated during run time is "Error 0x80070002 while loading package file "MyPackage.dtsx". The system cannot find the file specified." The package that fails is different from run to run and sometimes no packages fail at all. This is when run on exactly the same environment/data etc. I ran FileMon during this error and found out that when the error happens SSIS tries to read the dtsx file from a wrong place, namely from system32. I checked that this is identical to what would happen if @[Template::FolderPackages] variable were empty, but because the very same variable is used for every child package and works for some but doesn't work sometimes for others, I have no expalnation to this fact. Anything obvious, or time to raise a support call with Microsoft?

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  • Add a custom variable to an email header already within a gmail inbox

    - by Ali
    Hi guys - this may seem odd but I was wondering if it was possible to add custom header details to emails already in an inbox. Like lets say I wish to add in the Header of the email something like - myvariable = myvalue and then be able to query it somehow. I'm looking at code from Iloha mail and most of the details like subject and from recieved etc are in the headers and you can search through them. SO is it possible to add my own custom variable to an email header and query it in the same way? How can it be done using php? EDIT ==================== Thanks I know how you can modify the headers of sent messages plus also query for custom variables in message headers however in this case I want to know if it would be possible to add a custom variable in a recieved message already in my inbox. Actually let me define the situation here. I'm working on a google apps solution which requires maintaining references to emails. Basically the application is as such that when an email comes in - we create an order from that email and wish to maintain a reference to that EXACT email by some kind of identifier which would enable us to identify that email. The fact is that we don't want to download the emails in a database and maintain a separate store as we would want to keep all the emailing on GMAIL. We just need: A way to be able to 'link' to a specific email permanently - the UID is just a sequence number and not very reliable. We couldn't find any property of emails that could function as a unique ID or primary key and so we thought if we could instead generate a key on our end and store it in a custom variable on the email itself. However it seems unfortunately that there isn't a way to manipulate headers of an already existing email. :( is there any solution to this problem I could use any IDEA !

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  • C# - update variable based upon results from backgroundworker

    - by Bruce
    I've got a C# program that talks to an instrument (spectrum analyzer) over a network. I need to be able to change a large number of parameters in the instrument and read them back into my program. I want to use backgroundworker to do the actual talking to the instrument so that UI performance doesn't suffer. The way this works is - 1) send command to the instrument with new parameter value, 2) read parameter back from the instrument so I can see what actually happened (for example, I try to set the center frequency above the max that the instrument will handle and it tells me what it will actually handle), and 3) update a program variable with the actual value received from the instrument. Because there are quite a few parameters to be updated I'd like to use a generic routine. The part I can't seem to get my brain around is updating the variable in my code with what comes back from the instrument via backgroundworker. If I used a separate RunWorkerCompleted event for each parameter I could hardwire the update directly to the variable. I'd like to come up with a way of using a single routine that's capable of updating any of the variables. All I can come up with is passing a reference number (different for each parameter) and using a switch statement in the RunWorkerCompleted handler to direct the result. There has to be a better way. Thanks for your help.

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  • Docbook+Ant: Could not find variable with the name of fop.extensions

    - by rfkrocktk
    After a lot of spent time trying to get my article to compile in Ant with Docbook, I can't seem to make FO compilation work. I'm using Xalan 2.7.0, and everything else (both single-page and chunked HTML) compiles perfectly. It's only when I try to compile to FO that I get this error: Fatal Error! org.apache.xml.utils.WrappedRuntimeException: Could not find variable with the name of fop.extensions Cause: org.apache.xml.utils.WrappedRuntimeException: Could not find variable with the name of fop.extensions This is pretty strange and I can't seem to resolve it. I even added a <param> value defining the variable it "can't find:" <xslt style="docbook-xsl/fo/fo.xsl" in="documents/book.xml" out="output.fo"> <classpath> <fileset dir="lib" includes="**/*"/> </classpath> <param name="fop.extensions" expression="1"/> </xslt> Is there anything I can do to resolve this issue? It's really weird if you ask me. (Again, using the same code as above, all of my other Docbook compilation works just fine)

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  • update variable based upon results from .NET backgroundworker

    - by Bruce
    I've got a C# program that talks to an instrument (spectrum analyzer) over a network. I need to be able to change a large number of parameters in the instrument and read them back into my program. I want to use backgroundworker to do the actual talking to the instrument so that UI performance doesn't suffer. The way this works is - 1) send command to the instrument with new parameter value, 2) read parameter back from the instrument so I can see what actually happened (for example, I try to set the center frequency above the max that the instrument will handle and it tells me what it will actually handle), and 3) update a program variable with the actual value received from the instrument. Because there are quite a few parameters to be updated I'd like to use a generic routine. The part I can't seem to get my brain around is updating the variable in my code with what comes back from the instrument via backgroundworker. If I used a separate RunWorkerCompleted event for each parameter I could hardwire the update directly to the variable. I'd like to come up with a way of using a single routine that's capable of updating any of the variables. All I can come up with is passing a reference number (different for each parameter) and using a switch statement in the RunWorkerCompleted handler to direct the result. There has to be a better way.

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  • Obj-C: ++variable is increasing by two instead of one

    - by Eli Garfinkel
    I am writing a program that asks users yes/no questions to help them decide how to vote in an election. I have a variable representing the question number called questionnumber. Each time I go through the switch-break loop, I add 1 to the questionnumber variable so that the next question will be displayed. This works fine for the first two questions. But then it skips the third question and moves on to the fourth. When I have more questions in the list, it skips every other question. Somewhere, for some reasons, the questionnumber variable is increasing when I don't want it to. Please look at the code below and tell me what I'm doing wrong. Thank you! Eli import "MainView.h" import @implementation MainView @synthesize Question; @synthesize mispar; int conservative = 0; int liberal = 0; int questionnumber = 1; (IBAction)agreebutton:(id)sender { ++liberal; } (IBAction)disagreebutton:(id)sender { ++conservative; } (IBAction)nextbutton:(id)sender { ++questionnumber; switch (questionnumber) { case 2: Question.text = @"Congress should pass a law that would ban Americans from earning more than one hundred million dollars in any given year."; break; case 3: Question.text = @"It is not fair to admit people to a university or employ them on the basis of merit alone. Factors such as race, gender, class, and sexual orientation must also be considered."; break; case 4: Question.text = @"There are two Americas - one for the rich and one for the poor."; break; case 5: Question.text = @"Top quality health care should be free for all."; break; default: break; } } @end

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  • sending HTML email with a variable in the URL

    - by Rob Crouch
    I am using the following script to send a dynamic page (php) as a html email... the page being emailed uses a variable in the URL to determine what record is shown from a database <? $evid = $_GET['evid']; $to = '[email protected]'; $subject = 'A test email!'; // To send HTML mail, the Content-type header must be set $headers = 'MIME-Version: 1.0' . "\r\n"; $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n"; // Put your HTML here $message = file_get_contents('http://www.url.co.uk/diary/i.php?evid=2'); // Mail it mail($to, $subject, $message, $headers); ?> as you can see the html file being emailed has a evid variable... if i set this to $evid and try to send the variable when running the current script I get an error... does anyone know of a way round this? hope i explained that clear enough Rob

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  • CUDA Kernel Not Updating Global Variable

    - by Taher Khokhawala
    I am facing the following problem in a CUDA kernel. There is an array "cu_fx" in global memory. Each thread has a unique identifier jj and a local loop variable ii and a local float variable temp. Following code is not working. It is not at all changing cu_fx[jj]. At the end of loop cu_fx[jj] remains 0. ii = 0; cu_fx[jj] = 0; while(ii < l) { if(cu_y[ii] > 0) cu_fx[jj] += (cu_mu[ii]*cu_Kernel[(jj-start_row)*Kernel_w + ii]); else cu_fx[jj] -= (cu_mu[ii]*cu_Kernel[(jj-start_row)*Kernel_w + ii]); ii++; } But when I rewrite it using a temporary variable temp, it works fine. ii = 0; temp = 0; while(ii < l) { if(cu_y[ii] > 0) temp += (cu_mu[ii]*cu_Kernel[(jj-start_row)*Kernel_w + ii]); else temp -= (cu_mu[ii]*cu_Kernel[(jj-start_row)*Kernel_w + ii]); ii++; } cu_fx[jj] = temp; Can somebody please help with this problem. Thanking in advance.

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  • Jquery - binding click event to a variable

    - by Kayote
    All, I am really stuck/ confused at this point. I have an array with 6 items in it. Each item in the array is dynamically filled with elements using jquery '.html' method. However, I cannot seem to be able to attach/ bind an event to this dynamically created variable. As soon as the browser gets to the problem line (see the area labeled 'PROBLEM AREA'), I get a 'undefined' error, which is really confusing as all the previous code on the very same variable works just fine. var eCreditSystem = document.getElementById("creditSystem"); var i = 0; var eCreditT = new Array(6); // 6 members created which will be recycled function createCreditTransaction () // func called when a transaction occurs, at the mo, attached to onclick() { if (i < 6) { eCreditT[i] = undefined; // to delete the existing data in the index of array addElements (i); } else if (i > 5 || eCreditT[i] != undefined) { ... } } function addElements (arrayIndex) // func called from within the 'createCreditTransaction()' func { eCreditT[i] = $(document.createElement('div')).addClass("cCreditTransaction").appendTo(eCreditSystem); $(eCreditT[i]).attr ('id', ('trans' + i)); $(eCreditT[i]).html ('<div class="cCreditContainer"><span class="cCreditsNo">-50</span>&nbsp;<img class="cCurrency" src="" alt="" /></div><span class="cCloseMsg">Click box to close.</span><div class="dots"></div><div class="dots"></div><div class="dots"></div>'); creditTransactionSlideOut (eCreditT[i], 666); // calling slideOut animation console.log(eCreditT[i]); // this confirms that the variable is not undefined /* ***** THE PROBLEM AREA ***** */ $(eCreditT[i]).on ('click', function () // if user clicks on the transaction box { creditTransactionSlideBackIn (eCreditT[i], 150); // slide back in animation }); return i++; }

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  • jquery: set variable based on one class from an element that has more than one class

    - by John
    Hi I'm trying to make a table who's columns and rows highlight on hover (I realise there are jquery plugins out there that will do this, but I'm trying to learn, so thought I'd have a stab at doing it for myself.) Here's what I've got so far: $('th:not(.features), td:not(.features)').hover(highlight); function highlight(){ $('th.highlightCol, td.highlightCol').removeClass('highlightCol'); var col = $(this).attr('class'); $('.' + col).addClass('highlightCol'); }; $('tr').hover(highlightRowOn, highlightRowOff); function highlightRowOn(){ $(this).children('td:not(.highlightCol)').addClass('highlightRow'); }; function highlightRowOff(){ $(this).children('td:not(.highlightCol)').removeClass('highlightRow'); }; This works fine apart from one problem: Each 'td' has a class specific to it's column (package1, package2, package3, package4). It is this that gets passed to the variable (col) to add the class 'highlightCol' to a column when one of its 'td's are hovered on. However, If you move the cursor to a new column along a highlighted row, the 'td' you land on has two classes (highlightedRow and package* ). These both get passed to the variable and as a result the new column does not receive the correct class to highlight. Is there a way for me to target just the 'package* ' class and pass that to the variable while ignoring the 'highlightedRow' class? I hope that's not too jumbled for someone to make sense of and many thanks for any help offered.

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  • Javascript Callback when variable is set to X

    - by Erik
    Hey everyone, Have an issue I can't seem to wrap my head around. I'm wanting to write a generic javascript function that will accept a variable and a callback, and continue to execute until that variable is something other than false. For example, the variable SpeedFeed.user.sid is false until something else happens in the code, but I don't want to execute a particular callback until it has been set. The call: SpeedFeed.helper_ready(SpeedFeed.user.sid, function(){ alert(SpeedFeed.user.sid); // Run function that requires sid to be set. }); The function: helper_ready: function(vtrue, callback){ if(vtrue != false){ callback(); } else { setTimeout(function(){ SpeedFeed.helper_ready(vtrue, callback); }, SpeedFeed.apiCheckTime); } } The issue I've narrowed it down to appears to be that because in the setTimeout I call vtrue instead of the actual SpeedFeed.user.sid, it's going to be set to false always. I realize I could write a specific function for each time that just evaluates the SpeedFeed.user.sid, but I'd like to have a generic method that I could use throughout the application. Thanks for any insight :)

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  • geom_ribbon doesn't work - Error in eval(expr, envir, enclos) : object 'variable' not found

    - by Marciszka
    I try to add a geom_ribbon object to my ggplot2 plot. In my data frame, I have an NA values that (I guess) may cause a problem. This is a reproducible example of data drame I have: base <- c(1:10, rep(NA, 10)) output1 <- c(rep(NA, 9), 10 - 0:10) output2 <- c(rep(NA, 9), 10 + 0:10) xaxis <- 1:20 df <- data.frame(xaxis, base, output1, output2) df xaxis base output1 output2 1 1 1 NA NA 2 2 2 NA NA 3 3 3 NA NA 4 4 4 NA NA 5 5 5 NA NA 6 6 6 NA NA 7 7 7 NA NA 8 8 8 NA NA 9 9 9 NA NA 10 10 10 10 10 11 11 NA 9 11 12 12 NA 8 12 13 13 NA 7 13 14 14 NA 6 14 15 15 NA 5 15 16 16 NA 4 16 17 17 NA 3 17 18 18 NA 2 18 19 19 NA 1 19 20 20 NA 0 20 And my attempt to plot a ggplot2 object with a geom_ribbon: dfm <- melt(df, id=1) ggplot(dfm, aes(x = xaxis, y = value, colour = variable)) + geom_line(aes(group=variable)) + geom_ribbon(data=df, aes(group = 1, ymin=output1, ymax=output2)) And, eventually, I got an error I cannot deal with: Error in eval(expr, envir, enclos) : object 'variable' not found Thank ypu in advance for any suggestions.

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  • Best way to determine variable type and treat each one differently in F#

    - by James Black
    I have a function that will create a select where clause, but right now everything has to be a string. I would like to look at the variable passed in and determine what type it is and then treat it properly. For example, numeric values don't have single quotes around them, option type will either be null or have some value and boolean will actually be zero or one. member self.BuildSelectWhereQuery (oldUser:'a) = let properties = List.zip oldUser.ToSqlValuesList sqlColumnList let init = false, new StringBuilder() let anyChange, (formatted:StringBuilder) = properties |> Seq.fold (fun (anyChange, sb) (oldVal, name) -> match(anyChange) with | true -> true, sb.AppendFormat(" AND {0} = '{1}'", name, oldVal) | _ -> true, sb.AppendFormat("{0} = '{1}'", name, oldVal) ) init formatted.ToString() Here is one entity: type CityType() = inherit BaseType() let mutable name = "" let mutable stateId = 0 member this.Name with get() = name and set restnameval=name <- restnameval member this.StateId with get() = stateId and set stateidval=stateId <- stateidval override this.ToSqlValuesList = [this.Name; this.StateId.ToString()] So, if name was some other value besides a string, or stateId can be optional, then I have two changes to make: How do I modify ToSqlValuesList to have the variable so I can tell the variable type? How do I change my select function to handle this? I am thinking that I need a new function does the processing, but what is the best FP way to do this, rather than using something like typeof?

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  • Embed URL from variable in HTML file in Rails application

    - by TejasM
    hi, I have a doubt which might be silly for experience Rails developers. I am creating an application which is suppose to embed a video player with URL passed to it. So while displaying i.e in XXX.html.erb file i am writting below code. Now problem is @movie.trailer is my variable in ruby code which has URL value . I want the embedded video to load with URL given by this variable value. Any suggestion how am i suppose to place the value of Ruby variable(@movie.trailer) in part. <object width="425" height="344"> <param name="movie" value="<% @movie.trailer %>"> </param><param name="allowFullScreen" value="true"> </param><param name="allowscriptaccess" alue="always"> </param><embed src="<% @movie.trailer %>" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object> Note :- This code is working perfectly fine if i statically give value of URL. Please help

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  • In Perl v 5.10.1 on Windows, my variable loses it's value

    - by Sylvia
    I hope this is something straightforward that I'm doing wrong. I saw something online about "variable suicide" that looked good, but it was for an older version and I'm on 5.10.1. Anyway - a variable that I declared - $RootDirectory - just suddenly loses it's value, and I can't figure out why. Here's a script to reproduce the problem. When I run through the script in debug mode (perl -d) I can get it to print out the $RootDirectory at line 21 and 26. But it's gone by line 30. use strict; my $RootDirectory; my @RootDirectories; @RootDirectories = ( 'c:\\P4\\EDW\\PRODEDW\\EDWDM\\main\\db\\' ,'c:\\P4\\EDW\\PRODEDW\\EDWADS\\main\\db\\' ,'c:\\P4\\EDW\\PRODEDW\\FJE\\main\\db\\' ); foreach $RootDirectory (@RootDirectories) { # $RootDirectory = 'c:\\P4\\EDW\\PRODEDW\\EDWDM\\main\\db\\'; # print ' In foreach ' . $RootDirectory. "\n"; RunSchema (); } exit(0); sub RunSchema() { # print ' In RunSchema ' . $RootDirectory. "\n"; CreateTables (); } sub CreateTables() { # print ' In CreateTables ' . $RootDirectory. "\n"; SQLExecFolder ('tbl'); } sub SQLExecFolder() { print ' In SQLExecFolder ' . $RootDirectory. "\n"; # Variable $RootDirectory value is gone by now }

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  • Trailing comments after variable assignment subvert comparison

    - by nobar
    In GNU make, trailing comments appended to variable assignments prevent subsequent comparison (via ifeq) from working correctly. Here's the Makefile... A = a B = b ## trailing comment C = c RESULT := ifeq "$(A)" "a" RESULT += a endif ifeq "$(B)" "b" RESULT += b endif ifeq "$(C)" "c" RESULT += c endif rule: @echo RESULT=\"$(RESULT)\" @echo A=\"$(A)\" @echo B=\"$(B)\" @echo C=\"$(C)\" Here's the output... $ make RESULT=" a c" A="a" B="b " C="c" As you can see from the displayed value of RESULT, the ifeq was affected by the presence of the comment in the assignment of B. Echoing the variable B, shows that the problem is not the comment, but the intervening space. The obvious solution is to explicitly strip the whitespace prior to comparison like so... ifeq "$(strip $(B))" "b" RESULT += b endif However this seems error prone. Since the strip operation is not needed unless/until a comment is used, you can leave out the strip and everything will initially work just fine -- so chances are you won't always remember to add the strip. Later, if someone adds a comment when setting the variable, the Makefile no longer works as expected. Note: There is a closely related issue, as demonstrated in this question, that trailing whitespace can break string compares even if there is no comment. Question: Is there a more fool-proof way to deal with this issue?

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  • Radio buttons change variable in JavaScript

    - by dmanexe
    I have two fields which calculate a total, but I have a radio button pair that determines a variable within the equation. Here's the radio button code: <input type="radio" name="estimate_pool_shape" value="1" /> Angle <input type="radio" name="estimate_pool_shape" value=".86392" /> Freeform Immediately after that, this JavaScript is then calculating the surface area of the pool based of these fields and script: (Length <input type="text" size="5" name="estimate_pool_length" onBlur="conv2inches(document.forms.mainform);" />) x (Width <input type="text" name="estimate_pool_width" size="5" onBlur="conv2inches(document.forms.mainform);" />) The following JavaScript already works to update the fields, I just need the variable it uses to set the field values to change based on the radio buttons. function conv2inches(mainform) { var oin; var oinches; if(isNaN(mainform.estimate_pool_width.value)||isNaN(mainform.estimate_pool_length.value)){ alert("Please enter numbers only"); return false; } oin = ((mainform.estimate_pool_width.value) + (mainform.estimate_pool_length.value) * %%%RADIO BUTTON VARIABLE HERE%%%); oinches = (oin); if(oinches==0){ alert("Please enter valid values into the boxes"); } mainform.estimate_pool_sqft.value = oinches; return false; }

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  • Determining an object's variable name dynamically?

    - by ZenBlender
    Let's say I have some objects: ArrayList<SomeObject> list = new ArrayList<SomeObject>(); SomeObject A = new SomeObject(); SomeObject B = new SomeObject(); SomeObject C = new SomeObject(); SomeObject D = new SomeObject(); These constructors automatically add each object to the ArrayList so I can iterate over them but still maintain the variable names for direct access: public SomeObject(){ // init stuff here list.add(this); } But then, let's say I want to output some debug info, and iterate through list and print out the NAME of each object? How can I do that? Essentially, when "SomeObject A = new SomeObject();" is executed, I want to use reflection (if possible) to determine that this variable's name is "A" (a String) and either store that in the object when the constructor executes, or determine it dynamically through reflection when referencing this object with the variable named "A". Does that make sense? How can I do this? Thanks!

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  • $_POST Variable Detected in Chrome but not in Firefox

    - by user1707973
    I am using 2 images in a form to sort out query results from the database. The form is submitted using the POST method. When i click on the first image, the query results have to be sorted in ascending order, and when i click on the second, the results have to be sorted in the descending order. This is the code for the form: <form name="" action="" method="post"> <input type="hidden" name="typep" value="price" /> <input type="image" name="sort" value="asc" src="images/asc-ar.png" /> <input type="image" name="sort" value="desc" src="images/dsc-ar.png" /> </form> Now this is the code for checking if the $_REQUEST['sort'] variable is set and therefore whether sorting is required or not. if ($_REQUEST['sort'] != "") { $sort = $_REQUEST['sort']; $typep = $_REQUEST['typep']; //query to be executed depending on values of $sort and $typep } Firefox does detect the $_REQUEST['typep'] variable but not the $_REQUEST['sort'] one. This works perfectly in Chrome though. When i test the site in Firefox, it doesn't detect the $_REQUEST['sort'] variable and therefore the if condition evaluates to false and the search results don't get sorted.

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  • Passing Javascript value to PHP Variable using ajax

    - by shels
    I am trying to use a Flash detection script to assess whether Flash Plugin is enabled in the user browser so that a different page loads. The Flash detection script is as follows, using jquery 1.8.2 and jquery.jqplugin 1.0.2 <script type="text/javascript" src="jquery-1.8.2.min.js"></script> <script type="text/javascript" src="jquery.jqplugin.1.0.2.min.js"></script> <script type="text/javascript"> $(document).ready(function() { $("#withflash").hide(); $("#noflash").hide(); if ($.browser.flash == true) $("#withflash").show (); else $("#noflash").show (); }); </script> <div id="withflash">Flash Supported</div> <div id="noflash">Flash Not Supported</div> I get the display that "Flash Supported" if Flash Plugin is present.. I need to capture the value whether flash plugin value is true in a php variable $hasFlashSupport as below: <?php echo " $hasFlashSupport"; exit; ?> I am aware that PHP is server based and Javascript is client based.. Hence Ajax would be a nice option to capture the javascript variable to my php variable. I am totally ignorant about Ajax syntax and how to achieve it. Request the experts here to help me out with the code on how this can be achieved... Thanking all of you in advance..

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  • Calculating with a variable outside of its bounds in C

    - by aquanar
    If I make a calculation with a variable where an intermediate part of the calculation goes higher then the bounds of that variable type, is there any hazard that some platforms may not like? This is an example of what I'm asking: int a, b; a=30000; b=(a*32000)/32767; I have compiled this, and it does give the correct answer of 29297 (well, within truncating error, anyway). But the part that worries me is that 30,000*32,000 = 960,000,000, which is a 30-bit number, and thus cannot be stored in a 16-bit int. The end result is well within the bounds of an int, but I was expecting that whatever working part of memory would have the same size allocated as the largest source variables did, so an overflow error would occur. This is just a small example to show my problem, I am trying to avoid using floating points by making the fraction be a fraction of the max amount able to be stored in that variable (in this case, a signed integer, so 32767 on the positive side), because the embedded system I'm using I believe does not have an FPU. So how do most processors handle calculations out of the bounds of the source and destination variables?

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  • Variable from block is put into a calculation but throws off wrong reading

    - by user2926620
    I am having troubles with trying to retrieve a double variable that is already established outside the block and called inside but I want to return the value of the same variable so that I can apply it to a calculation. the variable that I want returned is: double quarter = 0; but when I plug it into quarter in my first else/if statement, it plugs in 0 and not the value in my switch block. What can I do to retrieve the value? double quarter = 0; //Date entry will be calculated by how much KW user enters switch (input) { case "2/15/13": quarter = kwUsed * 0.10; break; case "4/15/13": quarter = kwUsed * 0.12; break; case "8/15/13": quarter = kwUsed * 0.15; break; case "11/15/13": quarter = kwUsed * 0.15; break; default: System.out.println("Invalid date"); } //Declaring variables for calculations double base = 0; double over = 0; double excess = 0; double math1 = 0; double math2 = 0; //KW Calculations if (kwUsed <= 350) { base = quarter; }else if (kwUsed <= 500) { math1 = ((kwUsed - 350) * quarter); base = ((kwUsed * quarter) - math1); over = ((math1 * 0.1) + math1); }else if (kwUsed > 500) { math2 = ((kwUsed - 350) * 0.1); base = ((kwUsed * 0.1) - math2); math2 = ((kwUsed -350) - 50); over = ((math2 * 0.1) + (15 * 0.1)); double math3 =((kwUsed - 500) * 0.1); excess = ((math3 * 0.25) + math3); } Edited to clarify question.

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