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Why do some functions have underscores “__” before and after the function name?

...ml", title = _("Title"), data = self.application.db.query("select ... where object_id=%s", self.object_id) ) ... share | improve this answer | follow ...
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Android splash screen image sizes to fit all devices

...ly stretched without compromising the end result With this, Android will select the appropriate file for the device's image density, then it will stretch the image according to the 9-patch standard. end of tl;dr. Full post ahead I am answering in respect to the design-related aspect of the quest...
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Which is more efficient: Multiple MySQL tables or one large table?

...ectly then you should only need the intense lookup by doing something like select * from users where name="bob". Once you have bob then you are using an index to find the joined tables to bob which is significantly faster because you are using bob's id. This happens regardless of if you are doing a ...
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Why doesn't Dijkstra's algorithm work for negative weight edges?

... the "closed" nodes is indeed minimal, and thus the node that will next be selected is also minimal. The idea of it is: If we have a vertex in open such that its cost is minimal - by adding any positive number to any vertex - the minimality will never change. Without the constraint on positive numb...
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How to get a pixel's x,y coordinate color from an image?

Is there any way to check if a selected(x,y) point of a PNG image is transparent? 4 Answers ...
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PHP & mySQL: Year 2038 Bug: What is it? How to solve it?

...ything, I asked my backend (MSSQL) to do this job instead of PHP! $qry = "select DATEADD(month, 1, :date) next_date "; $rs_tmp = $pdo->prepare($qry); $rs_tmp->bindValue(":date", '2038/01/15'); $rs_tmp->execute(); $row_tmp = $rs_tmp->fetch(PDO::FETCH_ASSOC); echo $row_tmp['next_date']; ...
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Unit Test? Integration Test? Regression Test? Acceptance Test?

... @Honey Well, the regression test suite is mostly a selection of some or all of your unit and integration tests. It's a policy thing, how much regression testing you want to do. The main difference is that Unit tests are done in active development while regression tests is mor...
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how to provide a swap function for my class?

...declared in the same namespace as the type for which they are provided get selected through argument-dependent lookup over this generic version. But note that directly using the std::swap function for a user-defined class calls the generic version of std::swap instead of the user-defined swap: my...
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How do I print the full value of a long string in gdb?

...rinting a SQL query results in: (gdb) x/300sb stmt.c_str() 0x9cd948: "SELECT article.r"... 0x9cd958: "owid FROM articl"... .. share | improve this answer | follow ...
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What is @ModelAttribute in Spring MVC?

...the form to display to the user. For example it can be used to fill a HTML select: 2.Method argument public String findPerson(@ModelAttriute(value="person") Person person) { //..Some logic with person return "person.jsp"; } An @ModelAttribute on a method argument indicates the argument...