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Is there documentation for the Rails column types?
...
when nil, 4; 'int'
when 5..8; 'bigint'
else raise(ActiveRecordError, "No integer type has byte size #{limit}")
end
end
# and text ..
def text_to_sql(limit) # :nodoc:
case limit
when 0..0xff; 'tinytext'
when nil, 0x100..0xffff; 'text'
when 0x10...
Using Transactions or SaveChanges(false) and AcceptAllChanges()?
...lse to SaveChanges() and then call AcceptAllChanges() if there are no errors:
3 Answers
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How do I measure time elapsed in Java? [duplicate]
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Because it is senselessly error-prone (as the comment illustrates) and harder to read.
– Kevin Bourrillion
Nov 7 '14 at 18:34
7
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Cannot refer to a non-final variable inside an inner class defined in a different method
... as that will prevent me from updating the values however I am getting the error I describe in the initial question below:
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Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...record, three and four are also dramatically faster than capturing the key error in a try/except construct.
– Jeff
Jun 15 '17 at 19:44
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sho...
boost Composite keys - C/C++ - 清泛网 - 专注C/C++及内核技术
...ey:
// try to locate streets in quadrants with x==0
// compile-time error: hashed indices do not allow such operations
std::pair<street_locator::iterator,street_locator::iterator> p=
sl.equal_range(boost::make_tuple(0));
The reason for this limitation is quite logical: as the hash va...
Calling C++ class methods via a function pointer
... would fail with:
main.cpp: In function ‘int main()’:
main.cpp:19:18: error: must use ‘.*’ or ‘->*’ to call pointer-to-member function in ‘p (...)’, e.g. ‘(... ->* p) (...)’
19 | assert(c.*p(2) == 3);
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C++11 standard
.* and ->* are a single operators in...
How to sign an android apk file
...mall overview without reference or eclipse around, so leave some space for errors, but it works like this
Open your project in eclipse
Press right-mouse - > tools (android tools?) - > export signed application (apk?)
Go through the wizard:
Make a new key-store. remember that password
Sign yo...
Converting an array of objects to ActiveRecord::Relation
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ActiveRecord::StatementInvalid (PG::TooManyArguments: ERROR: cannot pass more than 100 arguments to a function) This workaround can not stand over 100 arguments to a function, thus, it works with relations of total length up to 100, ids like 112 and 12 won't be separated from ...
Latest jQuery version on Google's CDN
...dating your code to the latest jQuery version. Doing so might even add NEW errors to your code which didn't exist before. No responsible developer would automatically include new code from another site without testing it thoroughly.
There's simply no good reason to ALWAYS be using the latest versio...