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rails - Devise - Handling - devise_error_messages
...::Error
It also appears to be defined in a higher scope (probably coming from the controller), so it can be accessed in a variety of places.
Anywhere in your Helper
module DeviseHelper
def devise_error_messages1!
resource.errors.full_messages.map { |msg| content_tag(:li, msg) }.join
end
...
Best exception for an invalid generic type argument
...cumentation clearly states that it should be used for a different purpose. From the MSDN class remarks:
There are methods that are not
supported in the base class, with the
expectation that these methods will be
implemented in the derived classes
instead. The derived class might
implem...
Undo a Git merge that hasn't been pushed yet
...he "one prior the merge" will be the most recent commit that was merged in from the other branch -- it won't be the most recent commit on the current branch. Right? (This might just be a result of what git log chooses to show by default -- maybe there is a different output of git log or git reflog c...
Export/import jobs in Jenkins
...ing jobs between servers
The trick probably was the need to reload config from the Jenkins Configuration Page.
Update 2020.03.10
The JenkinsCI landscape has changed a lot... I've been using Job DSL for a while now.
We have a SEED Job that generates the rest of the jobs.
This helps us both recrea...
Math - mapping numbers
...line, with Y=f(X)=m*X+b, where m and b have been determined simultaneously from the following two constraint equations that result from substituting the values of X and Y at the required endpoints: C=m*A+b and D=m*B+b
– Chris Chiasson
Mar 9 '17 at 16:57
...
Pretty graphs and charts in Python [closed]
... a Matlab-style interactive API.
Chaco is a more modern plotting library from the folks at Enthought. It uses Enthought's Kiva vector drawing library and currently works only with Wx and Qt with OpenGL on the way (Matplotlib has backends for Tk, Qt, Wx, Cocoa, and many image types such as PDF, EPS...
Declaring and initializing variables within Java switches
...
Switch statements are odd in terms of scoping, basically. From section 6.3 of the JLS:
The scope of a local variable declaration in a block (§14.4) is the rest of the block in which the declaration appears, starting with its own initializer and including any further declarators...
Should everything really be a bundle in Symfony 2.x?
...del outside of any bundle, I've changed the doctrine section in config.yml from
doctrine:
# ...
orm:
# ...
auto_mapping: true
to
doctrine:
# ...
orm:
# ...
mappings:
model:
type: annotation
dir: %kernel.root...
How can I count the number of matches for a regex?
...
Solution for Java 8 and older
You'll have to do the following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count++;
Btw, matcher.groupCount() is something completely different.
Complete example:
import java.util.regex.*;
class Test {
public...
How do I pull from a Git repository through an HTTP proxy?
Note: while the use-case described is about using submodules within a project, the same applies to a normal git clone of a repository over HTTP.
...