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Primary key or Unique index?
...ork we have a big database with unique indexes instead of primary keys and all works fine.
15 Answers
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Combine two ActiveRecord::Relation objects
...lation.or(last_name_relation)
† Only in ActiveRecord 5+; for 4.2 install the where-or backport.
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String strip() for JavaScript? [duplicate]
...eplace(...) to String(this).replace(...) or ('' + this).replace(...); this allows to call() or apply() the function to non-string values
– Christoph
Sep 13 '09 at 19:14
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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=? and f3=?")
st.execute(f1, f2, f3)
st...
Wait for page load in Selenium
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does this really work all the time? Maybe Im missing something from your code but you are waiting for the dom to be in ready state. But consider that if your code executes too fast the previous page might not be unloaded yet and it will ...
How to increase timeout for a single test case in mocha
...(done){
this.timeout(500);
[Put network code here, with done() in the callback]
})
For arrow function use as follows:
it('accesses the network', (done) => {
[Put network code here, with done() in the callback]
}).timeout(500);
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Concurrent vs serial queues in GCD
...ou wouldn't use either of the last two for long running processes. You normally see it when you're trying to update the UI (always on the main thread) from something that may be running on another thread.
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Using javadoc for Python documentation [closed]
... from the Napolean documentation linked above.
A comprehensive example on all types of docstrings here.
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Get Android Phone Model programmatically
...uld like to know if there is a way for reading the Phone Model programmatically in Android.
16 Answers
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How to create loading dialogs in Android?
Those dark spinning progress dialogs in the Amazon and Engadget apps - are those standard in Android?
2 Answers
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