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How to execute a raw update sql with dynamic binding in rails
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It doesn't look like the Rails API exposes methods to do this generically. You could try accessing the underlying connection and using it's methods, e.g. for MySQL:
st = ActiveRecord::Base.connection.raw_connection.prepare("update table set f1=? where f2=...
PHP + MySQL transactions examples
...e
and PDO::ATTR_ERRMODE and PDO::ERRMODE_EXCEPTION
else, with some other API, you might have to test the result of the function used to execute a query, and throw an exception yourself.
Unfortunately, there is no magic involved. You cannot just put an instruction somewhere and have transactions ...
TypeError: got multiple values for argument
...only, and some legacy code had it passed as a positional argument. The new API was expecting color, and got a 4x4 matrix instead.
– Tomasz Gandor
Aug 16 '17 at 19:15
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How can I parse a local JSON file from assets folder into a ListView?
...ailable() is incorrect as per the Java docs: docs.oracle.com/javase/7/docs/api/java/io/… "Note that while some implementations of InputStream will return the total number of bytes in the stream, many will not. It is never correct to use the return value of this method to allocate a buffer int...
How to detect online/offline event cross-browser?
...ethods:
https://developer.mozilla.org/en/Online_and_offline_events
"If the API isn't implemented in the browser, you can use other signals to detect if you are offline including listening for AppCache error events and responses from XMLHttpRequest"
This links to an example of the "listening for AppC...
Streaming video from Android camera to server
...inless experience.
The SDK demonstrates use of Android 4.3's MediaCodec API to direct the device hardware encoder's packets directly to FFmpeg for RTMP (with librtmp) or HLS streaming of H.264 / AAC. It also demonstrates realtime OpenGL Effects (titling, chroma key, fades) and background recordin...
Is there a naming convention for git repositories?
... words are hard to understand. I know, I'm German. "Donaudampfschifffahrtskapitänspatentausfüllungsassistentenausschreibungsstellenbewerbung."
"_" is harder to type than "-"
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The input is not a valid Base-64 string as it contains a non-base 64 character
...aracters solved my problem. The decrypt function in Azure's Key Vault REST API needs this process and doesn't document it.
– used2could
Jul 8 '19 at 23:42
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How to access test resources in Scala?
... @akauppi this can be done with docs.spring.io/spring-framework/docs/2.5.x/api/org/…
– dk14
Aug 13 '16 at 18:50
this...
Ruby on Rails Server options [closed]
...g or Rails 4 template streaming).
Workloads in which the app performs HTTP API calls.
The hybrid I/O model in Phusion Passenger Enterprise 4 or later makes it an excellent choice for these kinds of workloads.
Other app servers require the user to run at least one instance per application. By con...