大约有 47,000 项符合查询结果（耗时：0.0499秒） [XML]
Rails: fields_for with index?
...:namespace] = options[:namespace]
case record_name
when String, Symbol
if nested_attributes_association?(record_name)
return fields_for_with_nested_attributes(record_name, record_object, fields_options, block)
end
else
re...
Javascript sort array by two fields
...ion(a, b){
for(var x in _args){
var ax = a[_args[x].substring(1)];
var bx = b[_args[x].substring(1)];
var cx;
ax = typeof ax == "string" ? ax.toLowerCase() : ax / 1;
bx = typeof bx == "string" ? bx.toLowerCase() : bx / 1;
...
Why does Oracle 9i treat an empty string as NULL?
...efore there was a SQL standard, Oracle made the design decision that empty strings in VARCHAR/VARCHAR2 columns were NULL and that there was only one sense of NULL (there are relational theorists that would differentiate between data that has never been prompted for, data where the answer exists but ...
Extract only right most n letters from a string
How can I extract a substring which is composed of the rightmost six letters from another string ?
21 Answers
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How to check what version of jQuery is loaded?
...ote a third simple command to pull the jQuery version. $_ should return a string containing the version number.
If you get back a version number -- usually as a string -- then jQuery is loaded and that is what version you're working with. If not loaded then you should get back undefined or mayb...
How to write URLs in Latex? [closed]
... of the \url macro that uses only Tex primitives:
\def\url#1{\expandafter\string\csname #1\endcsname}
This url absolutely won't break over lines, though; the hypperef package is better for that.
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Multiple inputs with same name through POST in php
...wer in POSTing Form Fields with same Name Attribute you also can interplay strings or integers without quoting.
The answers assume that you don't mind the key value coming back for PHP however you can set name=[yourval] (string or int) which then allows you to refer to an existing record.
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Do Google refresh tokens expire?
...refresh token. Why not just have a permanent access token, and cut out the extra call for the refresh token.
– Charles Robertson
Dec 15 '15 at 22:24
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Does SQLAlchemy have an equivalent of Django's get_or_create?
...= 'countries'
id = Column(Integer, primary_key=True)
name = Column(String, unique=True)
To get or create my object I write :
myCountry = get_or_create(session, Country, name=countryName)
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Wildcards in a Windows hosts file
...ntries to the hosts file, because (as previously said), it's not that much extra work when you already are editing the apache config file.
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