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How to run `rails generate scaffold` when the model already exists?
... available to you.
Rails:
controller
generator
helper
integration_test
mailer
migration
model
observer
performance_test
plugin
resource
scaffold
scaffold_controller
session_migration
stylesheets
If you'd like to generate a controller scaffold for your model, see scaf...
How to select rows that have current day's timestamp?
...o show the difference that this makes on the actual execution plans, we'll test with an SQL-Fiddle (an extremely helpful site):
CREATE TABLE test --- simple table
( id INT NOT NULL AUTO_INCREMENT
,`timestamp` datetime --- index timestamp
, d...
How to add a custom right-click menu to a webpage?
...
Tested on Opera 11.01, Firefox 3.6.13, Chrome 9, Safari 5 (all 4 via addEventListener) and IE 8 (attachEvent).
– Radek Benkel
Feb 5 '11 at 20:26
...
Local and global temporary tables in SQL Server
... temp table is how I'd expect it to behave (coming from other DBs), but my testing shows that what actually happens in SQL Server is: "Global temporary tables are automatically dropped when the session that created the table ends and all other tasks have stopped referencing them"
...
CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...?IsRunningInRPCSS@@YGHXZ ;IsRunningInRPCSS(void)
769AEF83 test eax, eax ;判断当前进程是否是RPCSS
769AEF85 jnz loc_76A0B8ED ;如果是（即返回非0）则返回“灾难性故障”的错...
Folder structure for a Node.js project
...le when using git as source control)
/spec contains specifications for BDD tests.
/tests contains the unit-tests for an application (using a testing
framework, see
here)
NOTE: both /vendor and /support are deprecated since NPM introduced a clean package management. It's recommended to handle all 3...
How do I remove the last comma from a string using PHP?
...
You can use substr function to remove this.
$t_string = "'test1', 'test2', 'test3',";
echo substr($t_string, 0, -1);
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How do you query for “is not null” in Mongo?
...dding some examples due to interest in this answer
Given these inserts:
db.test.insert({"num":1, "check":"check value"});
db.test.insert({"num":2, "check":null});
db.test.insert({"num":3});
This will return all three documents:
db.test.find();
This will return the first and second documents only:
...
Java 8: Lambda-Streams, Filter by Method with Exception
...er examples on how to use it (after statically importing UtilException):
@Test
public void test_Consumer_with_checked_exceptions() throws IllegalAccessException {
Stream.of("java.lang.Object", "java.lang.Integer", "java.lang.String")
.forEach(rethrowConsumer(className -> System.out...
How do you check that a number is NaN in JavaScript?
...ng whether any value is NaN, instead of just numbers, see here: How do you test for NaN in Javascript?
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