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  • retrieving object information with Doctrine

    - by ajsie
    i want to fetch information from the database using objects. i really like this approach cause this is more OOP: $user = Doctrine_Core::getTable('User')->find(1); echo $user->Email['address']; echo $user->Phonenumbers[0]->phonenumber; rather than: $q = Doctrine_Query::create() ->from('User u') ->leftJoin('u.Email e') ->leftJoin('u.Phonenumbers p') ->where('u.id = ?', 1); $user = $q->fetchOne(); echo $user->Email['address']; echo $user->Phonenumbers[0]['phonenumber']; the problem is that the first one uses 3 queries (3 different tables), while the second one uses only 1 (and is therefore recommended technique). but i feel that it destroys the object oriented design. cause ORM is meant to give us an OOP approach so that we could focus on objects and not the relational database. but now they want us to go back to use SQL like pattern. there isn't a way to get information form multiple tables not using DQL? the above examples are taken from the documentation: doctrine

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  • Creating one row of information in excel using a unique value

    - by user1426513
    This is my first post. I am currently working on a project at work which requires that I work with several different worksheets in order to create one mail master worksheet, as it were, in order to do a mail merge. The worksheet contains information regarding different purchases, and each purchaser is identified with their own ID number. Below is an example of what my spreadsheet looks like now (however I do have more columns): ID Salutation Address ID Name Donation ID Name Tickets 9 Mr. John Doe 123 12 Ms. Jane Smith 100.00 12 Ms.Jane Smith 300.00 12 Ms. Jane Smith 456 22 Mr. Mike Man 500.00 84 Ms. Jo Smith 300.00 What I would like to do is somehow sort my data so that everythign with the same unique identifier (ID) lines up on the same row. For example ID 12 Jane Smith - all the information for her will show up under her name matched by her ID number, and ID 22 will match up with 22 etc... When I merged all of my spreadsheets together, I sorted them all by ID number, however my problem is, not everyone who made a donation bought a ticket or some people just bought tickets and nothing us, so sorting doesn't work. Hopefully this makes sense. Thanks in advance.

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  • Is self learning Computer Science/programming over a college degree worth it? [on hold]

    - by user106576
    I am currently in college and I just want to skip to learning and gaining experience in what I came here to do, but unfortunately the first two years of college is general classes that everyone takes. I have a couple of friends that are also in Computer Science and we were planning on starting a small company/self employment. Would dropping out and gaining experience and a portfolio qualify for smaller companies if I look for a job there? What programs should I learn, and which ones should I learn before others to better understand the programs that are harder?

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  • Convert NSString to fetch synthesized information.

    - by Max
    //COPY THIS CODE IN A FRESH PROJECT!!! //THIS 2 LINES ARE JUST EXAMPLES, IN REAL THEY ARE NOT STATIC! NSString *messagelevel1 = @"45"; NSString *messagelevel = @"1"; NSString *HuidigLevel = messagelevel; NSDecimalNumber *huidigleveldec = [[NSDecimalNumber alloc] initWithString: HuidigLevel]; float HuidigLevelRek = [huidigleveldec floatValue]; //HERE IS THE PROBLEM NSString* LevelTotaal=[[NSString alloc] initWithFormat:@"messagelevel%.f",HuidigLevelRek]; NSString*result = LevelTotaal; NSLog(@"%@",result); // THIS RESULT SHOULD RETURN THE SAME VALUE AS THE LINE UNDER THIS LINE! NSLog(@"%@",messagelevel1); I want the *result string behaves like the *huidiglevel string and fetch some information, but because the LevelTotaal is a NSString, It doesn't fetch this information. I really got no idea where to google for this problem, searching the Developer docs didn't helped either . Maybe you guys can help me out? Actually the second NSLog returns the value and to first NSLog just returns messagelevel1. To tell you in short ;) I hope you guys get what I'm saying!

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  • PHP5 getrusage() returning incorrect information?

    - by Andrew
    I'm trying to determine CPU usage of my PHP scripts. I just found this article which details how to find system and user CPU usage time (Section 4). However, when I tried out the examples, I received completely different results. The first example: sleep(3); $data = getrusage(); echo "User time: ". ($data['ru_utime.tv_sec'] + $data['ru_utime.tv_usec'] / 1000000); echo "System time: ". ($data['ru_stime.tv_sec'] + $data['ru_stime.tv_usec'] / 1000000); Results in: User time: 29.53 System time: 2.71 Example 2: for($i=0;$i<10000000;$i++) { } // Same echo statements Results: User time: 16.69 System time: 2.1 Example 3: $start = microtime(true); while(microtime(true) - $start < 3) { } // Same echo statements Results: User time: 34.94 System time: 3.14 Obviously, none of the information is correct except maybe the system time in the third example. So what am I doing wrong? I'd really like to be able to use this information, but it needs to be reliable. I'm using Ubuntu Server 8.04 LTS (32-bit) and this is the output of php -v: PHP 5.2.4-2ubuntu5.10 with Suhosin-Patch 0.9.6.2 (cli) (built: Jan 6 2010 22:01:14) Copyright (c) 1997-2007 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies

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  • cannot modify header information puzzler

    - by outofmyleague_lucy
    hi im out of my league i have written what has now become identical code for two sites hosted on different servers. the first worked perfectly and i have therefore used it to compare the second to.from a login for i am directing to a loginaction.php when i include the db_connect.php ie <?php session_start(); include 'db_connect.php'; $user=$_POST['formUser'] $password=$_POST['formPassword']etc ? i am returning cannot modify header information header info already sent, but when i include the content of the db_connect ie <?php session_start(); $connect = mysql_connect("localhost", "user", "pass"); mysql_select_db(db_name, $connection); $user=$_POST['formUser'] $password=$_POST['formPassword']etc ? it works. any ideas? edit - requested error message Warning: Cannot modify header information - headers already sent by (output started at /home/avenncou/public_html/include/db_connect.php:4) in /home/avenncou/public_html/include/loginaction.php on line 14 at line 14 the is a header("Location: {$_SERVER["HTTP_REFERER"]}"); edit - requested db_connect.php <?php $connection = mysql_connect("localhost", "user", "pass");// or die ("Unable to connect!"); mysql_select_db("db", $connection);// or die ("Unable to select database!"); ?> that is all of it (dies commented out in case thats where the error was)!!!

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  • Getting IP/WHOIS information from users clicking ads in Google AdWords?

    - by nctrnl
    I am running a Google AdWords campaign and am wondering if I can get any information from the people who click my ads? I already collect statistics on the website, but I get no referer information from the Google ads in the search network, only from the display network. I am also running Google Analytics on the website but I can't find any relevant information there. P.S: Tag suggestion: google-adwords

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  • Information about PTE's (Page Table Entries) in Windows

    - by Patrick
    In order to find more easily buffer overflows I am changing our custom memory allocator so that it allocates a full 4KB page instead of only the wanted number of bytes. Then I change the page protection and size so that if the caller writes before or after its allocated piece of memory, the application immediately crashes. Problem is that although I have enough memory, the application never starts up completely because it runs out of memory. This has two causes: since every allocation needs 4 KB, we probably reach the 2 GB limit very soon. This problem could be solved if I would make a 64-bit executable (didn't try it yet). even when I only need a few hundreds of megabytes, the allocations fail at a certain moment. The second problem is the biggest one, and I think it's related to the maximum number of PTE's (page table entries, which store information on how Virtual Memory is mapped to physical memory, and whether pages should be read-only or not) you can have in a process. My questions (or a cry-for-tips): Where can I find information about the maximum number of PTE's in a process? Is this different (higher) for 64-bit systems/applications or not? Can the number of PTE's be configured in the application or in Windows? Thanks, Patrick PS. note for those who will try to argument that you shouldn't write your own memory manager: My application is rather specific so I really want full control over memory management (can't give any more details) Last week we had a memory overwrite which we couldn't find using the standard C++ allocator and the debugging functionality of the C/C++ run time (it only said "block corrupt" minutes after the actual corruption") We also tried standard Windows utilities (like GFLAGS, ...) but they slowed down the application by a factor of 100, and couldn't find the exact position of the overwrite either We also tried the "Full Page Heap" functionality of Application Verifier, but then the application doesn't start up either (probably also running out of PTE's)

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  • Write the longest possible loop.

    - by Abhay
    Hello Group, Recently I was asked this question in a technical discussion. What is the longest possible loop that can be written in a programming language? This loop has to be as long as possible and yet not an infinite loop and should not end-up crashing the program (Recursion etc...) I honestly did not know how to attack this problem, so I asked him if is it practically possible. He said using some computer science concepts, you can arrive at a hypothetical number which may not be practical but nevertheless it will still not be infinite. Anyone here; knows how to analyse / attack this problem. P.S. Choosing some highest limit for a type that can store the highest numerical value is apparently not an answer. Thanks in advance,

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  • What is this Hash-like/Tree-like Construct Called?

    - by viatropos
    I want to create a "Config" class that acts somewhere between a hash and a tree. It's just for storing global values, which can have a context. Here's how I use it: Config.get("root.parent.child_b") #=> "value" Here's what the class might look like: class Construct def get(path) # split path by "." # search tree for nodes end def set(key, value) # split path by "." # create tree node if necessary # set tree value end def tree { :root => { :parent => { :child_a => "value", :child_b => "another value" }, :another_parent => { :something => { :nesting => "goes on and on" } } } } end end Is there a name for this kind of thing, somewhere between Hash and Tree (not a Computer Science major)? Basically a hash-like interface to a tree.

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  • By what methods can I check information about a DVD video disc?

    - by chobok
    I have some DVD video discs that I am intending to sell. I would like to get information such as region, language, subtitles. Some of the discs are in another language which I cannot read, and some are from small publishers and do not have such information on the disc or the boxes. What methods can I use to access this information? Please list command line options, as well as common GUI based tools (eg VLC player).

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  • CS Education, where was it? Where is it now? Where is it going?

    - by CheesePls
    I'm planning on doing research into Computer Science education for my senior project and I could think of no better group of people to consult than the SO community. So, what do you think about the state of CS education in the United States (and the rest of the world, though I had planned on focusing on the US)? What do you feel are necessary topics? What topics are superfluous? Objects first vs. Objects early vs. Objects later? ALSO, if anyone has or knows of any blogs, studies, etc., those would be very helpful as well.

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  • ViewSonic LCD Monitor Touch-input

    - by Synetech inc.
    I bought a used 15" ViewSonic LCD monitor (VP150m) and noticed that it has a 3.5mm connector on the back labeled “touch i/o”. I’m trying to figure out how to use the touch function but am having trouble finding anything useful. First, I cannot find any information on what kind of cable it uses (TS, TRS, TRRS, etc.), or how to connect it to the computer. Second, I cannot find touch drivers for it—though I can find a page that mentions how easy it is to install them. Does anyone have any information on using the touchscreen function of the VP150m? Thanks a lot.

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  • Extract information from a Func<bool, T> or alike lambda

    - by Syska
    I''m trying to build a generic cache layer. ICacheRepository Say I have the following: public class Person { public int PersonId { get; set; } public string Firstname { get; set; } public string Lastname { get; set; } public DateTime Added { get; set; } } And I have something like this: list.Where(x => x.Firstname == "Syska"); Here I want to extract the above information, to see if the query supplied the "PersonId" which it did not, so I dont want to cache it. But lets say I run a query like this: list.Where(x => x.PersonId == 10); Since PersonId is my key ... I want to cache it. with the key like "Person_10" and I later can fetch it from the cache. I know its possible to extract the information with Expression<Func<>> but there seems to be a big overhead of doing this (when running compile and extract the Constant values etc. and a bunch of cache to be sure to parse right) Are there a framework for this? Or some smart/golden way of doing this ?

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  • Authentication system - Return information that have to change every time

    - by paulohr
    I have a application (made in Delphi) that contains a Authentication system (login & password). This system is in PHP, and the application get results from PHP using HTTP GET method. The system returns 'OK' if login and password are correct, and 'NO' if not correct. Like this... procedure Check; var x: string; begin x:=Get('www.mywebsite.com/auth.php?user=xxxxxx&pass=zzzzzz'); if x='OK' then UnlockFeatures else MessageBox(0,'You're not VIP','Error',0); end; Well, it works fine, but it is very easy to circumvent this system with sniffers, packet editor or proxy. So, I want to get some information (in PHP) that changes every time, and that could be possible get the same information by my application. What can I do? I don't need codes. Just tips, suggestions, please... Thanks...

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  • Python - Submit Information on a Website to Extract Data from Resulting Page

    - by bloodstorm17
    So I am trying to figure out how to post on a website that uses a drop down menu which is holding the values like this (based on the page source): <td valign="top" align="right"><span class="emphasis">Select Item Option : </span></td> <td align="left"> <span class="notranslate"> <select name="ItemOption1"> <option value="">Select Item Option</option> <option value="321_cba">Item Option 1</option> <option value="123_abcd">Item Option 2</option> ... Now there are two of these drop down menus on top of each other. I want to be able to select an item from drop down menu 1 and drop down menu 2 and then submit the page. Now based on the code it submits the information using the following code: <td colspan="2" align="center"> <input type="submit" value="View Result" onclick="return check()"> </td> </tr> </table> <input type="hidden" name="ItemOption1" value=""> <input type="hidden" name="ItemOption2" value=""> I have no idea how to select the items in the drop down menu and then submit the page and capture the information on the resulting page into a text file. Can someone please help me with this?

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  • Getting information of a class structure at runtime using Java reflection

    - by Eliza Sahoo
    A simple way to get the class structure information of the Class we are using in our application. Step1: Create the Class object of the class we want to explore at run time or the class which is getting added at runtime. Step2: As we are looking for the structure of the class, get all Constructors, Fields and methods by invoking respective functions of the Class. Step3: print them in java console or use them as required. Eliza

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  • Unable to retrieve information form HP-UX pst_status object

    - by bogertron
    I am attempting to get process information by using the HP-UX C/C++ library. After scouring the internet, I have discovered that HP-UX has the pstat.h header file which allows programmers to retrieve the process information. After attempting to understand code from the internet hp website, I attempted to create a little test sample to comprehend what the code does. I attempted to use example 3, however, I ran into several issues. The first issue came when I attempted to execute the following line of code: (void)printf("pid is %d, command is %s\n", pst[i].pst_pid, pst[i].pst_ucomm); When I attempted to print the string, I hit a memory fault. So I decided to attempt to see what the string is and came up with the following: #include <sys/param.h> #include <sys/pstat.h> #include <sys/unistd.h> #include <string.h> int main(int argc, char** argv) { #define BURST ((size_t)10) struct pst_status pst[BURST]; int i, count; int idx = 0; /* index within the context */ int index = 0; /* loop until count == 0, will occur all have been returned */ while ((count=pstat_getproc(pst, sizeof(pst[0]),BURST,idx))>0) { index = 0; printf("index: %d", index); /* got count (max of BURST) this time. process them */ while (pst[i].pst_ucomm[index] != '\0') { printf("%c", pst[i].pst_ucomm[index]); index++; } printf("\n"); for (i = 0; i < count; i++) { printf("pid is %d, command is \n", pst[i].pst_pid); } /* * now go back and do it again, using the next index after * the current 'burst' */ idx = pst[count-1].pst_idx + 1; } if (count == -1) perror("pstat_getproc()"); #undef BURST } Unfortunately, what happens is that I get the first process printed, then pid is 2, command is pid is 2, command is pid is 2, command is... I know that I must be doing something foolish since my C/C++ skills are not that great, but I cannot figure out what the issue is since the code is largely copied from the hp website. So here's the question(s) for clarity: 1. Why can't printf("%s", pst[i].pst_ucomm); handle strings? 2. Why can't I iterate over the processes in the system? Any help is greatly appreciated.

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  • Geography information

    - by user295541
    Hi, I have an application which uses geography informations. I don't want to implement this feature because I think I could find a free services which provides needed informations to me. Anybody can help me which service I could use? (Geography information means country, county, town data.)

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  • Python3: ssl cert information

    - by MadSc13ntist
    I have been trying to get information regarding expired ssl certificates using python 3 but it would be nice to be able to get as verbose a workup as possible. any takers? So far i have been trying to use urllib.request to get this info (to no avail), does this strike anyone as foolish? I have seen some examples of similar work using older versions of python, but nothing using v3. http://objectmix.com/python/737581-re-urllib-getting-ssl-certificate-info.html http://www.mail-archive.com/[email protected]/msg208150.html

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  • To show the help related information in WPF.

    - by Ashish Ashu
    I have several dialogs in the application. I want to pop up help related box when user clicks on the help button next to Main Heading. The help box is activated by selecting the small blue icon next to the heading. When the help box appears it has the information that is required to understand the entry related to the dialog. This help box automatically disappears when user clicks any where other then the help box. Please help!!

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  • WCF Serialization -More Information

    - by nettguy
    I read some microsoft articles.They explained that WCF uses DataContractSerializer for serialization.But the articles did not explain why DataContractSerializer preferred over XmlSerialization.Can anyone give me the additional information?

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  • debugging information cannot be found or does not match visual studio's

    - by numerical25
    I copied an existing project and renamed the folder. Now I get this error when I try to compile the application debugging information cannot be found or does not match. No symbols loaded. Do you want to continue debugging ? If I click yes, it compiles and runs fine. But now I have to deal with that message. Just curious about what i change in the projects properties to get it to stop.

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