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  • why can't I set a new instance's delegate as self?

    - by Guille10k
    I have a uipickerview, which appears with an ActionSheet. All this is in a class "MultiPicker". I create a new instance from "FirstViewController" this way: multiPicker *multiPic = [[multiPicker alloc]init]; multiPic.delegate = self; [multiPic action:aRunIndex]; And inside "multiPicker", in "action:" UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:title delegate:otroDelegate cancelButtonTitle:nil destructiveButtonTitle:@"Cancel" otherButtonTitles:@"Done", nil]; UIPickerView *pickerView = [[[UIPickerView alloc] init] autorelease]; pickerView.tag = 101; pickerView.delegate = self; pickerView.dataSource = self; pickerView.showsSelectionIndicator = YES; [actionSheet addSubview:pickerView]; [actionSheet showInView:self.view]; I need "FirstViewController" when MultiPicker finishes, so I can update a table in FirstView. I tried setting a new delegate to MultiPicker so, it tells FirstView when it finishes. But the instruction "multipic.delegate = self" in the first piece of code mades the app crash and says "Terminating due to uncaught exception". If I simply put all "MultiPicker" code inside FirstViewController class, not in a separate one, the action sheet stay blocked when I try to push a button different from "Cancel" Any idea? Thank u

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  • Loop through a set of HTML files and append text at top and bottom of each file

    - by NJTechGuy
    For instance, I have an HTML file like this : a.htm <body> Hello world! </body> I want : a.htm <html> <LINK href='style.css' rel=stylesheet type='text/css'> <body> Hello world! </body> </html> The code I have so far is : #!/bin/sh for i in `ls *.htm` do @echo off echo ***New top line*** > temp.txt type i >> temp.txt echo ***New bottom line*** >> temp.txt move /y temp.txt i done Errors : abc@bunny:~/fileAppendText$ ./loopAllFilesTest.sh ./loopAllFilesTest.sh: line 5: @echo: command not found ./loopAllFilesTest.sh: line 7: type: i: not found ./loopAllFilesTest.sh: line 9: move: command not found ./loopAllFilesTest.sh: line 5: @echo: command not found ./loopAllFilesTest.sh: line 7: type: i: not found ./loopAllFilesTest.sh: line 9: move: command not found ./loopAllFilesTest.sh: line 5: @echo: command not found ./loopAllFilesTest.sh: line 7: type: i: not found ./loopAllFilesTest.sh: line 9: move: command not found Please help. Thanks!

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  • Fastest way to copy a set (100+) of related SQLAlchemy objects and change attribute on each one

    - by rebus
    I am developing an app that keeps track of items going in and out of factory. For example, lets say you have 3 kinds of plastic coming in, they are mixed in various ratios and then sent out as a new product. So to keep track of this I've created following database structure: This is very simplified overview of my SQLAlchemy models: IN <- RATIO <- OUT <- REPORT ITEMS -> REPORT IN are products coming in, RATIO is various information on measurements, and OUT is a final product. REPORT is basically a header model which has a lot of REPORT ITEMS attached to it, which in turn relate it to OUT products. This would all work perfectly, but IN and RATION values can change. These changes ultimately change the OUT product which would mean the REPORT values would change. So in order to change an attribute on IN object for example I should copy that object with that attribute changed. I would think this is basically a question about database normalization, because i didn't want to duplicate all the IN, RATIO and OUT information by writing it in REPORT ITEMS table for example, but I've came across this problem (well not really a problem but rather a feature I'd like for a user to have). When the attribute on IN object is changed I want related objects (RATIO and OUT) automatically copied and related to a new IN object. So I was thinking something like: Take an existing instance of model IN that needs to change (call it old_in) Create a new one out of it with some attributes changed (call it new_in) Collect all the RATIO objects that are related to old_in Copy each RATIO and relate them to a new_in Collect all the OUT objects that are related to old RATIO Copy each OUT and relate them to a new RATIO Few questions pop to mind when i look at this problem: Should i just duplicate the data, does all this copying even make sense? If it does, should i rather do it in plain SQL? If no what would be the best approach to do it with Python and SQLAlchemy? Any general answer would suffice really, at least a pointer in right direction. I really want to free then end user for hassle of having create new ratios and out products.

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  • How do I set up the python/c library correctly?

    - by Bartvbl
    I have been trying to get the python/c library to like my mingW compiler. The python online doncumentation; http://docs.python.org/c-api/intro.html#include-files only mentions that I need to import the python.h file. I grabbed it from the installation directory (as is required on the windows platform), and tested it by compiling the script: #include "Python.h". This compiled fine. Next, I tried out the snippet of code shown a bit lower on the python/c API page: PyObject *t; t = PyTuple_New(3); PyTuple_SetItem(t, 0, PyInt_FromLong(1L)); PyTuple_SetItem(t, 1, PyInt_FromLong(2L)); PyTuple_SetItem(t, 2, PyString_FromString("three")); For some reason, the compiler would compile the code if I'd remove the last 4 lines (so that only the pyObject variable definition would be left), yet calling the actual constructor of the tuple returned errors. I am probably missing something completely obvious here, given I am very new to C, but does anyone know what it is?

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  • What does the length attribute do when set on the @Column JPA annontation?

    - by James McMahon
    What exactly does setting the length on a column do in JPA? @Column(name = "middle_name", nullable = false, length = 32) public String getMiddleName() { return this.middleName; } I understand that you can use the annotations to generate the database schema based on the entity objects, but does length do any sort of check or truncation when persistence happens, or it solely used for schema creation? I also realize that JPA can sit on top of various implementations, the implementation I am concerned with in this case, is Hibernate.

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  • How do I set IP access / password restrictions in Apache?

    - by Mouthbreather
    I'd like to restrict access to my Rails app (running on Apache/Passenger) to just two IPs, but if the visitor doesn't fall into those two IPs, I would like for him/her to be prompted to enter a password that would allow any user with the proper credentials to access the site from anywhere. I am new to configuring Apache and would appreciate any hints. Thanks!

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  • How to set an ImageView and two TextviewS to have the same height?

    - by M.ES
    I've got the following layout with one ImageView and 2 TextView, I would like them all to have the same height. However, the ImageView is always taking more than half of the screen. Any help is highly apreciated. Here is the layout: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#FFFFFF" android:orientation="vertical" > <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="0.4" android:src="@drawable/sprint" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="0.3" android:background="#555555" android:text="@string/hello" /> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="0.3" android:text="@string/hello" /> </LinearLayout>

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  • How do I set bash environment variables from a script?

    - by James A. Rosen
    I have some proxy settings that I only occasionally want to turn on, so I don't want to put them in my ~/.bash_profile. I tried putting them directly in ~/bin/set_proxy_env.sh, adding ~/bin to my PATH, and chmod +xing the script but though the script runs, the variables don't stick in my shell. Does anyone know how to get them to stick around for the rest of the shell session?

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  • How can I set a default sort for tables in PHPMyAdmin (i.e. always "Primary key - Descending")

    - by jeremyclarke
    Even though its obnoxious in a lot of ways I use PHPMyAdmin all the time to debug database issues while writing PHP. By default it sorts tables by primary key ascending. 99% of the time I would rather have the newest data (my test data) shown at the top by default rather than the useless first few records ever saved. Is there a way to configure PHPMyAdmin to show the newest records by default? To alter similar behavior?

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  • FETCH INTO doesn't raise an exception if the set is empty, does it?

    - by Cade Roux
    Here is some actual code I'm trying to debug: BEGIN OPEN bservice (coservice.prod_id); FETCH bservice INTO v_billing_alias_id, v_billing_service_uom_id, v_summary_remarks; CLOSE bservice; v_service_found := 1; -- An empty fetch is expected for some services. EXCEPTION WHEN OTHERS THEN v_service_found := 0; END; When the parametrized cursor bservice(prod_id) is empty, it fetches NULL into the three variables and does not throw an exception. So whoever wrote this code expecting it to throw an exception was wrong, right? The comment seems to imply that and empty fetch is expected and then it sets a flag for later handling, but I think this code cannot possibly have been tested with empty sets either. Obviously, it should use bservice%NOTFOUND or bservice%FOUND or similar.

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  • How to set dynamic value to "value" attribute of struts html:button tag ?

    - by Prat1
    I am using following button tag to display button by passing some runtime value to "value" attribute: <html:button styleClass="button50" value="<%=no_list %>" onclick="callOneFunction(this);" /> it is not throwing an jasper exception saying, setValue(String) cannot work with html:button. Please help me out ot resolve my problem, I want to pass some value at runtime to vale attribute. How to do it ? Thanks in advance.

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  • What is the perfect skill set for a software engineer? [closed]

    - by Sergey
    Of course, except technology stack. I'm asking about more fundamental skills such as design patterns or math. POSSIBLE DUPLICATES: http://stackoverflow.com/questions/76364/what-is-the-single-most-effective-thing-you-did-to-improve-your-programming-skill http://stackoverflow.com/questions/132798/what-should-every-programmer-know http://stackoverflow.com/questions/1177724/what-soft-skills-make-a-great-programmer

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  • Set up CakePHP in a subdirectory; Wordpress is installed in the root

    - by Derek Chiang
    I have been searching for a solution for 2 hours but nothing seems to work... here is my problem: I have WordPress installed in the root (var/www). So by going to http://www.geekderek.com, I see my wordpress site. I put CakePHP in a subdirectory var/www/cakephp. I want to be able to see my CakePHP app by going to: www.geekderek.com/cakephp. However, currently this url just returns a Wordpress page saying "Content not found." I believe this problem can be solved by modifying .htaccess in my root directory. So here is my .htaccess: http://pastebin.com/sXJTRstB As you can see, I added this line to the default WP .htaccess file: RewriteRule ^cakephp(/(.*))?$ cakephp/app/webroot/$1 [QSA,L] However, for some reason this doesn't seem to work. Could anyone please tell me what is wrong?? Thank you so much!

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  • How can I set time limit on get_file_contents in PHP?

    - by Jagira
    Hello, At times the get_file_contents takes too long and that hangs the entire script. Is there any way of setting a time out limit on get_file_contents, without modifying the maximum execution time of the script? Edit: Its taking long because the file does not exist. I am getting "failed to open stream: HTTP request failed!" error. But it takes forever.

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  • Best way to set a default button (or trigger its event in javascript) for an input field, not part of a form

    - by Sheldon Pinkman
    I've got a stand-alone input field, not part of any form. I also got a button, that has some onclick event. When I type something in the input field, and press the Enter key, I want it do effectively press the button, or trigger its onclick event. So that the button is "the input field's default button" so to speak. <input id='myText' type='text' /> <button id='myButton' onclick='DoSomething()'>Do it!</button> I guess I can mess around with the input field's onkeypress or onkeydown events and check for the Enter key, etc. But is there a more 'clean' way, I mean something that associated the button with that input field, so that the button is the 'default action' or something for that field? Note that I'm not inside a form, I am not sending, posting, or submitting something. The DoSomething() function just changes some of the HTML content locally, depending on the text input.

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