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How to execute a raw update sql with dynamic binding in rails
...
It doesn't look like the Rails API exposes methods to do this generically. You could try accessing the underlying connection and using it's methods, e.g. for MySQL:
st = ActiveRecord::Base.connection.raw_connection.prepare("update table set f1=? where f2=? and f3=?")
st.execute(f1, f2, f3)
st...
jQuery selector regular expressions
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James Padolsey created a wonderful filter that allows regex to be used for selection.
Say you have the following div:
<div class="asdf">
Padolsey's :regex filter can select it like so:
$("div:regex(class, .*sd.*)")
Also, check the official documentation on se...
How to get the difference between two arrays in JavaScript?
... The fastest way is the most obviously naive solution. I tested all of the proposed solutions for symmetric diff in this thread, and the winner is: function diff2(a, b) { var i, la = a.length, lb = b.length, res = []; if (!la) return b; else if (!lb) r...
Code for Greatest Common Divisor in Python [closed]
... the result will have the same sign as b", hence gcd(1, -1) == -1 seems totally legit to me.
– Marco Bonelli
Jan 11 '15 at 2:30
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Does C# have an equivalent to JavaScript's encodeURIComponent()?
...er my 4 hour experiments I found this
c# CODE:
string a = "!@#$%^&*()_+ some text here али мамедов баку";
a = System.Web.HttpUtility.UrlEncode(a);
a = a.Replace("+", "%20");
the result is:
!%40%23%24%25%5e%26*()_%2b%20some%20text%20here%20%d0%b0%d0%bb%d0%b8%20%d0%bc%d0%b0%d0%bc...
How to export DataTable to Excel
....Select(val => $"\"{val}\"")));
lines.AddRange(valueLines);
File.WriteAllLines("excel.csv", lines);
This will write a new file excel.csv into the current working directory which is generally either where the .exe is or where you launch it from.
...
Splitting string into multiple rows in Oracle
...ct 108 Name, 'test' Project, 'Err1, Err2, Err3' Error from dual
union all
select 109, 'test2', 'Err1' from dual
)
select distinct
t.name, t.project,
trim(regexp_substr(t.error, '[^,]+', 1, levels.column_value)) as error
from
temp t,
table(cast(multiset(select level from dual conne...
Replace part of a string with another string
...string, "$name", "Somename");
In response to a comment, I think replaceAll would probably look something like this:
void replaceAll(std::string& str, const std::string& from, const std::string& to) {
if(from.empty())
return;
size_t start_pos = 0;
while((start_pos...
Add a new column to existing table in a migration
... });
}
Then you can run your migrations:
php artisan migrate
This is all well covered in the documentation for both Laravel 3:
Schema Builder
Migrations
And for Laravel 4 / Laravel 5:
Schema Builder
Migrations
Edit:
use $table->integer('paid')->after('whichever_column'); to add ...
Using ConfigurationManager to load config from an arbitrary location
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How can I get programmatically strConfigPath value for my ASP.NET WebForms application hosted in sub.domain.com/virtualDir2 and path C:\Portals\App1\v2 and config file in C:\Portals\App1\v2\web.config ?
– Kiquenet
...