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Understanding the Rails Authenticity Token
... authenticity_token, stores this token in the session, and places it in a hidden field in the form. When the user submits the form, Rails looks for the authenticity_token, compares it to the one stored in the session, and if they match the request is allowed to continue.
Why it happens
Since the a...
c# datatable insert column at position 0
...e how to do :
DataTable dt = new DataTable();
dt.Columns.Add("ID");
dt.Columns.Add("FirstName");
dt.Columns.Add("LastName");
dt.Columns.Add("Address");
dt.Columns.Add("City");
// The table structure is:
//ID FirstName LastName Address ...
Turn off autosuggest for EditText?
...e same question but I still wanted to set this option in my XML file so I did a little more research until I found it out myself.
Add this line into your EditText.
android:inputType="textFilter"
Here is a Tip. Use this line if you want to be able to use the "enter" key.
android:inputType="text...
How do I trigger the success callback on a model.save()?
...bone.html ]. it seems that the attr is mandatory.. if only 'option' is provided the functions assumes it to be the 'attr' and messes up the call
– Kumaresan
Dec 7 '12 at 10:34
...
Unioning two tables with different number of columns
...he use of * as column list specifier. This type of errors can be easily avoided by entering the column list explicitly:
select col_a, col_b, col_c from test1_1790
union all
select col_a, col_b, col_c from test2_1790;
A more frequent scenario for this error is when you inadvertently swap (or shift) ...
Is jQuery “each()” function synchronous?
consider this scenario for validating:
9 Answers
9
...
PatternSyntaxException: Illegal Repetition when using regex in Java
...e error message: "Illegal repetition".
You should escape them: "\\{\"user_id\" : [0-9]*\\}".
And since you seem to be trying to parse JSON, I suggest you have a look at Jackson.
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How to create function that returns nothing
...
Use RETURNS void like below:
CREATE FUNCTION stamp_user(id int, comment text) RETURNS void AS $$
#variable_conflict use_variable
DECLARE
curtime timestamp := now();
BEGIN
UPDATE users SET last_modified = curtim...
Use HTML5 to resize an image before upload
...at I ended up doing and it worked great.
First I moved the file input outside of the form so that it is not submitted:
<input name="imagefile[]" type="file" id="takePictureField" accept="image/*" onchange="uploadPhotos(\'#{imageUploadUrl}\')" />
<form id="uploadImageForm" enctype="multipa...
Why can I change value of a constant in javascript
...hat this is not a bug, but it should work this way? Because I thought that idea of the constant is that it can not be changed. Basically a programmer has trust that no matter what will happen, nothing can change the value inside of my constant.
– Salvador Dali
...