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Rails select helper - Default selected value, how?
...llection from the database. I was trying to populate the default selection by a title, not an id of the item. This answer helped me see that issue, and once I populated my @project variable with an id from the database table, instead of a title, this code worked appended onto the back of the form.se...
What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
...t gives me null. What in the world is going on? EDIT: It is answered below by the user "30thh".
– anddero
Mar 14 '19 at 17:35
...
What are naming conventions for MongoDB?
...) If you find yourself improving the
readability of your collection name by adding underscores or
camelCasing your collection name is probably too long or should use
periods as appropriate which is the standard for collection
categorization.
Dot notation for higher detail collections: Give...
Refreshing web page by WebDriver when waiting for specific condition
...thod
driver.get("https://accounts.google.com/SignUp");
driver.findElement(By.id("firstname-placeholder")).sendKeys(Keys.F5);
Using navigate.refresh() method
driver.get("https://accounts.google.com/SignUp");
driver.navigate().refresh();
Using navigate.to() method
driver.get("https://accounts.g...
Explain “claims-based authentication” to a 5-year-old
...enance of user authorizations and user sign-in out of a (web) application, by turning authentication/authorization into a separate (web) service.
So for example, when I browse to a claims-enabled web application for the first time, it will redirect my browser to a 'logon service' which it trusts. ...
disable textbox using jquery?
...se $("input[type=radio]:eq(2)") too. Your method identify the radio button by value, which of course is valid too. :)
– o.k.w
Oct 30 '09 at 11:01
...
Adding an identity to an existing column
... If you don't have much data, then "creating the table" can be achieved by generation a script from SSMS. Right click the table > Scrip Table as > Create TABLE to > (new query editor?). Then drop it, and inside that script you can add the IDENTITY(1, 1) part with the primary key column
...
Check if a string is null or empty in XSLT
...and highly voted, is also very misleading. It really depends what you mean by "null or empty". If you want a test that succeeds if categoryName is either absent, or present with a zero-length value, you should use test="not(categoryName = '')". The supplied answer will return false if the categoryNa...
How does one remove an image in Docker?
...
Update, as commented by VonC in How to remove old Docker containers.
With Docker 1.13 (Q4 2016), you now have:
docker system prune will delete ALL unused data (i.e., in order: containers stopped, volumes without containers and images with no co...
How to select rows that have current day's timestamp?
...RE DATE(timestamp) = CURDATE() --- using DATE(timestamp)
ORDER BY timestamp ;
Explain:
ID SELECT_TYPE TABLE TYPE POSSIBLE_KEYS KEY KEY_LEN REF
1 SIMPLE test ALL
ROWS FILTERED EXTRA
6671 100 Using where; Using filesort
It filters all (6671) rows and then d...