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Laravel Eloquent Sum of relation's column
...all sum on a collection object, rather than on the builder object returned by products(). It's worth clarifying which one you mean here, and ideally provide a link to explain both.
– Benubird
Nov 5 '14 at 10:59
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Mercurial move changes to a new branch
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As suggested by Mark, the MqExtension is one solution for you problem. IMHO a simpler workflow is to use the rebase extension. Suppose you have a history like this:
@ changeset: 2:81b92083cb1d
| tag: tip
| summary: my ne...
Observer Design Pattern vs “Listeners”
...ing design, the implementation of a given pattern will often be influenced by the language and platform being used. As such, a particular implementation of the Observer pattern within a given framework (which may happen to use the term "listener" to describe the role of the ConcreteObserver) might ...
How to create ENUM type in SQLite?
...ntation does not fully emulate enum because it makes it impossible to sort by the integer index of the values (which is possible with an actual enum field). Just, everyone, keep that in mind.
– Boris D. Teoharov
Dec 12 '19 at 15:07
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Best way to implement keyboard shortcuts in a Windows Forms application?
...the event handler method directly (no need for it to be exclusively called by an event) or refactor the common logic into a separate method.
– Hans Passant
Jun 10 '14 at 11:26
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PowerShell script not accepting $ (dollar) sign
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Escape it by using backtick (`) as an escape character for the dollar sign ($).
Also, try to enclose the statement in single-quotes instead of the double-quotes you are using now.
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Named placeholders in string formatting
In Python, when formatting string, I can fill placeholders by name rather than by position, like that:
19 Answers
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Grep characters before and after match?
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The awk version by @amit_g is much faster.
– ssobczak
Jul 4 '14 at 12:46
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Media Player called in state 0, error (-38,0)
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You need to call mediaPlayer.start() in the onPrepared method by using a listener.
You are getting this error because you are calling mediaPlayer.start() before it has reached the prepared state.
Here is how you can do it :
mp.setDataSource(url);
mp.setOnPreparedListener(this);
mp.pr...
Mercurial for Beginners: The Definitive Practical Guide
Inspired by Git for beginners: The definitive practical guide.
22 Answers
22
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