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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...
git diff renamed file
...
The issue with the difference between HEAD^^ and HEAD is that you have an a.txt in both commits, so just considering those two commits (which is what diff does), there is no rename, there is a copy and a change.
To detect copies, you can use -C...
image processing to improve tesseract OCR accuracy
...y pixellated - for example that generated by fax machines - is especially difficult for tesseract to process - presumably all those jagged edges to the characters confound the shape-recognition algorithms.
...
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?
...
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 ...
How to quickly open a file in Visual Studio 2012
I am trying VS2012 RC but find one good feature no available any more (or if it still is, please let me know): in VS2010, if I know a file name, for example, MyFile.cs , I can quickly open it by typing Ctrl + D (or whatever shortcut assigned) to go to Find tool, and then type >of myfile.cs , ...
Choosing between MEF and MAF (System.AddIn)
... addons completely, even running them inside a separate app domain so that if an addon crashes, it won't take down your application. It also provides a very complete way of decoupling the addons from depending on anything but the contract you give them. In fact, you can versionize your contract ada...
What XML parser should I use in C++? [closed]
...oy XML, real XML. You need to be able to read and write all of the XML specification, not just the low-lying, easy-to-parse bits. You need Namespaces, DocTypes, entity substitution, the works. The W3C XML Specification, in its entirety.
The next question is: Does your API need to conform to DOM or S...
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...