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Get lengths of a list in a jinja2 template
...oducts</span>
You can also use this syntax in expressions like
{% if products|length > 1 %}
jinja2's builtin filters are documented here; and specifically, as you've already found, length (and its synonym count) is documented to:
Return the number of items of a sequence or mapping....
Difference between save and saveAndFlush in Spring data jpa
...mory, until flush or commit commands are issued.
But be aware, that even if you flush the changes in transaction and do not commit them, the changes still won't be visible to the outside transactions until the commit in this transaction.
In your case, you probably use some sort of transactions me...
How can I load an object into a variable name that I specify from an R data file?
...ssion. Is there a way to safely load an object from a data file into a specified variable name without risk of clobbering existing variables?
...
What datatype to use when storing latitude and longitude data in SQL databases? [duplicate]
...
For longitudes use: Decimal(9,6), and latitudes use: Decimal(8,6)
If you're not used to precision and scale parameters, here's a format string visual:
###.###### and ##.######
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impr...
Which access modifiers are implied when not specified?
For all of the different concepts that support access modifiers, such as fields, properties, methods and classes, which access modifiers are implied if not specified?
...
How to make a transparent UIWebView
...e detail view I have to display some text and a background image (text is different for each row, but the image remains the same). The easiest way, in my opinion, is to put the text in an .rtf file and display it in a UIWebView . Then just put a UIImageView behind the UIWebView .
...
Find the host name and port using PSQL commands
...ur hosting provider; I'd guess it would be the same host as the web server if one wasn't specified. Typically this would be configured as localhost, assuming your web server and database server are on the same host.
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Difference between virtual and abstract methods [duplicate]
...omething, and any subclasses CAN override the method using the override modifier and provide a custom implementation.
public abstract class E
{
public abstract void AbstractMethod(int i);
public virtual void VirtualMethod(int i)
{
// Default implementation which can be overridd...
C libcurl get output into a string
...(struct string *s) {
s->len = 0;
s->ptr = malloc(s->len+1);
if (s->ptr == NULL) {
fprintf(stderr, "malloc() failed\n");
exit(EXIT_FAILURE);
}
s->ptr[0] = '\0';
}
size_t writefunc(void *ptr, size_t size, size_t nmemb, struct string *s)
{
size_t new_len = s->len ...
Convert PHP closing tag into comment
... you can put / and > in their own character class.
Fix using the /x modifier
The x modifier - aka PCRE_EXTENDED - ignores spaces and newlines in a regular expression (except when they occur inside a character class); this makes it possible to add spaces to separate the problematic characters. T...