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Rails find record with zero has_many records associated [duplicate]

...overflow.com/a/5570221/417872 City.includes(:photos).where(photos: { city_id: nil }) share | improve this answer | follow | ...
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How to implement an android:background that doesn't stretch?

...t, etc up here // Now adjust button sizes Button b = (Button) findViewById(R.id.somebutton); int someDimension = 50; //50pixels b.setWidth(someDimension); b.setHeight(someDimension); } share | ...
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android - How to set the Rating bar is non clickable and touchable in HTC mobile

...droid.view.View.OnTouchListener; RatingBar ratingBar = (RatingBar)findViewById(R.id.ratingBar); ratingBar.setOnTouchListener(new OnTouchListener() { public boolean onTouch(View v, MotionEvent event) { return true; } }); So basically you intercept the touch and do n...
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Ignore mouse interaction on overlay image

... Keep in mind that pointer-events isn't supported by all major browsers yet. IE doesn't support it (surprise...), and I think Safari doesn't support it either. – Hatchmaster Oct 9 '12 at 16:22 ...
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Is there a way to create your own html tag in HTML5?

...n tags on your page, and make them all backwards-compatible with IE6, just by adding an array of all of the tag names you want to use, and then creating each one inside a for-loop, in your page head, before you start using any of them. That's how the html5shim works in the first place. Just be pre...
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Authenticate Jenkins CI for Github private repository

... To follow up on the comment by @garmoncheg, note that /var/lib/jenkins is the home directory (~) for the jenkins user. – David Harkness Aug 13 '13 at 23:40 ...
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Best explanation for languages without null

...mental effort to ensure that the class never gets into this state (perhaps by explicitly coding an invariant). In contrast, if I were using a language with algebraic data types or checked enumerations that lets me define type DoorState = | Open | ShutAndUnlocked | ShutAndLocked then I could ...
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jquery's append not working with svg element?

...oke: 'black', 'stroke-width': 2, fill: 'red'}); document.getElementById('s').appendChild(circle); circle.onmousedown= function() { alert('hello'); }; </script> </body></html> *: well, there's DOM Level 3 LS's parseWithContext, but browser s...
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Spring: Why do we autowire the interface and not the implemented class?

... imageUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
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String comparison in Python: is vs. == [duplicate]

...e same value. Also, is it generally considered better to just use '==' by default, even when comparing int or Boolean values? You use == when comparing values and is when comparing identities. When comparing ints (or immutable types in general), you pretty much always want the former. Ther...