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How to test if parameters exist in rails
I'm using an IF statement in Ruby on Rails to try and test if request parameters are set. Regardless of whether or not both parameters are set, the first part of the following if block gets triggered. How can I make this part ONLY get triggered if both params[:one] and params[:two] is set?
...
How to see which flags -march=native will activate?
...sted. Specifically, on gcc 4.9.2 on a Phenom, the output includes these: --param l1-cache-size=64 --param l1-cache-line-size=64 --param l2-cache-size=512
– Daniel Santos
Jan 29 '15 at 0:22
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Repeat a task with a time delay?
... * perform UIUpdates on a specified time interval.
*
* @param uiUpdater A runnable containing the update routine.
*/
public UIUpdater(final Runnable uiUpdater) {
mStatusChecker = new Runnable() {
@Override
public void ru...
Proper way to declare custom exceptions in modern Python?
...elf, message, errors):
# Call the base class constructor with the parameters it needs
super(ValidationError, self).__init__(message)
# Now for your custom code...
self.errors = errors
That way you could pass dict of error messages to the second param, and get to i...
Show all Elasticsearch aggregation results/buckets and not just 10
...
The size param should be a param for the terms query example:
curl -XPOST "http://localhost:9200/imoveis/_search?pretty=1" -d'
{
"size": 0,
"aggregations": {
"bairro_count": {
"terms": {
"field": "bair...
`ui-router` $stateParams vs. $state.params
With ui-router , it's possible to inject either $state or $stateParams into a controller to get access to parameters in the URL. However, accessing parameters through $stateParams only exposes parameters belonging to the state managed by the controller that accesses it, and its parent states,...
How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
... `unlink()`, an E_WARNING level error will be generated on failure.
*
* @param string $source absolute path to directory or file to delete.
* @param bool $removeOnlyChildren set to true will only remove content inside directory.
*
* @return bool true on success; false on failure
*/
function ...
Spring Expression Language (SpEL) with @Value: dollar vs. hash ($ vs. #)
...anguage" (EL) in the Java EE spec which is meant to be used in JSPs and by JSF. It has nothing to do with Spring EL.
– gregfqt
Mar 18 '15 at 13:59
add a comment
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CORS Access-Control-Allow-Headers wildcard being ignored?
...ime, Accept-Encoding, Accept-Ext, Accept-Features, Accept-Language, Accept-Params, Accept-Ranges, Access-Control-Allow-Credentials, Access-Control-Allow-Headers, Access-Control-Allow-Methods, Access-Control-Allow-Origin, Access-Control-Expose-Headers, Access-Control-Max-Age, Access-Control-Request-H...
What is the difference between ApplicationContext and WebApplicationContext in Spring MVC?
... classes: to configure the root application context you should use context-param tag in your web.xml
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/root-context.xml
/WEB-INF/applicationContext-security.xml
...