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Rails auto-assigning id that already exists
...mpany.id column to the highest value in the table with a query like this:
SELECT setval('company_id_seq', (SELECT max(id) FROM company));
I am guessing at your sequence name "company_id_seq", table name "company", and column name "id" ... please replace them with the correct ones. You can get the...
How do I remove a project configuration in Visual Studio 2008?
...
In the Configuration Manager, select "Edit..." in the "Configuration" column for each project (not via the dropdown named Active solution configuration) that has configurations you want to remove.
In the dialog that pops up, mark each unwanted configurat...
Unfortunately MyApp has stopped. How can I solve this?
.... Alternatively, you can press alt+6. Make sure your emulator or device is selected in the Devices panel. Next, try to find the stack trace, which is shown in red. There may be a lot of stuff logged into logcat, so you may need to scroll a bit. An easy way to find the stack trace is to clear the log...
Using scanner.nextLine() [duplicate]
...
I think your problem is that
int selection = scanner.nextInt();
reads just the number, not the end of line or anything after the number. When you declare
String sentence = scanner.nextLine();
This reads the remainder of the line with the number on it (...
Where do I find the line number in the Xcode editor?
... preference by clicking on xcode on left hand side uper corner.
2) then select Text Editing
3) then select Show: Line numbers and click on check box for enable it.
4) close it.
5) you will see the line number in xcode.
...
How can I rename a project folder from within Visual Studio?
...nding changes.
Remove the project from the solution, by right clicking and selecting Remove.
Now, in Windows Explorer, rename the project folder.
Go back to Visual Studio, and in Solution Explorer, right click the solution and choose Add -> Existing project. Select the project file for the projec...
Delete newline in Vim
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You can also select all the lines you want to join using V (Visual Line Mode) then press J or gJ
– Sbu
Jan 24 '17 at 6:13
...
jquery find closest previous sibling with class
...first is working on a list of returned elements that starts closest to the selected object (as opposed to top to bottom relative to the page)?
– NReilingh
Mar 10 '13 at 0:41
2
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PHP: merge two arrays while keeping keys instead of reindexing?
...xing by + operator. This will be very help full in laravel and codeigniter select dropdown.
$empty_option = array(
''=>'Select Option'
);
$option_list = array(
1=>'Red',
2=>'White',
3=>'Green',
);
$arr_option = $empty_...
Apple Mach-O Linker Error when compiling for device
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In some case error log window displaying .xctest error, to fix it
-> Select your project
-> Beside this(just before General tab) select your projectTest file from dropdown
-> There is one option (like ProjNameTests)
-> In Host Application, select your project from dropdown only if ...