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USB Debugging option greyed out

...of this post. When you connect your phone to your PC, using the USB cable, select the mode as PC Software. Now you should be able to enable USB Debugging. share | improve this answer | ...
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Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac

...heck your database transaction isolation level in the mysql cli: mysql> SELECT @@GLOBAL.tx_isolation, @@tx_isolation, @@session.tx_isolation; +-----------------------+-----------------+------------------------+ | @@GLOBAL.tx_isolation | @@tx_isolation | @@session.tx_isolation | +----------------...
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What do I have to do to get Core Data to automatically migrate models?

...oordinator: %@",error); } Then you need to do a little trick in xCode: Select your xcdatamodel file Select the Design Menu at the top - then Data Model - then choose Add Model Version Your xcdatamodel file will then get moved into a new directory with the same name as your xcdatamodel file but w...
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What should every developer know about databases? [closed]

...fluence that choice; The concept of coverage (why you shouldn't just write SELECT *); The difference between a clustered and non-clustered index; Why more/bigger indexes are not necessarily better; Why you should try to avoid wrapping filter columns in functions. Designers should also be aware of ...
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Editing in the Chrome debugger

...ipt inside html files for me. Also, if you've added a folder to workspace, select the local js file, right-click and map that file to the network dito. – o-o Nov 5 '16 at 0:17 1 ...
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How to “undelete” a deleted folder in Subversion / TortoiseSVN?

... revision there your folder still exists, then right-click that folder and select "Copy to..." and enter the path there you want the folder to be re-created (probably the same path that is already in the text box). share ...
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Find unused code [closed]

... Yes, ReSharper does this. Right click on your solution and selection "Find Code Issues". One of the results is "Unused Symbols". This will show you classes, methods, etc., that aren't used. share | ...
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How can I reliably get an object's address when operator& is overloaded?

...on operator that the type comes with. Thus the f(T&,long) overload is selected (and the Integral Promotion performed). What happens for any other type ? Thus the f(T&,long) overload is selected, because there the type does not match the T* parameter. Note: from the remarks in the fil...
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Converting an array of objects to ActiveRecord::Relation

...e clause will generate a SQL statement with IN that looks something like: SELECT .... WHERE `my_models`.id IN (2, 3, 4, 6, .... Keep in mind that the ordering of the array will be lost - But since your objective is only to run a class method on the collection of these objects, I assume it won't b...
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Get lengths of a list in a jinja2 template

... Thanks @AlexMartelli. In addition we could use inline syntax like {{ form.select_field(size=5 if form.select_field.choices|count > 5 else form.select_field.choices|count) }} – Filipe Bezerra de Sousa Jun 28 at 23:52 ...