How do I create DIVs with rounded corners
In this post I want to describe a way I use to get a “DIV” with nice rounded corners like this one. This way isn’t something new, but as I noticed it is used not so often as other ways. Let’s go through it and see its advantages and disadvantages.
Reset form with jQuery (part II)
Here I noted how to reset a form with jQuery, however, later I noticed some fields aren’t reset() correctly: in my form I have hidden fields with initial value of “0″ (or just an empty value) and these fields are supposed to be changed interactively upon a user’s input using jQuery. These fields weren’t reset correctly for some reason, at least in Firefox, thus I had to change my original function to something like this:
1 2 3 4 5 | function resetForm(id) { $('#' + id + ' :input').each(function(){ // I decided not to have different reset routine for different field types $(this).val(''); }); } |
Probably less elegant, but works… 
How to .reset() form with jQuery
Such jQuery call won’t work:
1 2 | $('#formId').reset(); // error: $("#formId").reset() is not a function |
As the tutorial shows (yes, I never read manuals before I get into troubles as well, but always google answers before think, lol), we can have the following:
1 2 3 4 5 | function resetForm(id) { $('#'+id).each(function(){ this.reset(); }); } |
…and somewhere on a page this:
1 | <input type="button" onclick="resetForm('formId');" /> |
Propel: Call to a member function XXXX on a non-object
Want to write down a simple trick I use to avoid errors like the subject says.
Let’s take we have described tables in our schema.xml:
Listing 1
1 2 3 4 5 6 7 8 9 10 11 12 13 | <table name="User" phpName="User" idMethod="native"> <column name="id" phpName="Id" peerName="ID" type="INTEGER" required="true" autoIncrement="true" primaryKey="true"></column> <column name="username" phpName="UserName" peerName="USERNAME" type="VARCHAR" size="32" required="true" default=""></column> <column name="state_id" phpName="StateId" peerName="STATEID" type="INTEGER" required="true" default="0"></column> <foreign-key foreignTable="State"> <reference local="state_id" foreign="id"/> </foreign-key> </table> <table name="State" phpName="State" idMethod="native"> <column name="id" phpName="Id" peerName="ID" type="INTEGER" required="true" autoIncrement="true" primaryKey="true"></column> <column name="state_name" phpName="StateName" peerName="NAME" type="CHAR" size="25" required="true" default=""></column> </table> |
Thanx to relation definition in lines 5-7 we can do a call like this:
Listing 2
1 2 | // assuming $user is a valid instance of User echo $user->getState()->getStateName(); |
But what happens if a certain user has no `state_id` set for some reason? We’ll get the message: Error: Call to a member function getName() on a non-object…
(Obviously as $user->getState() doesn’t produce a correct State instance without `state_id`)
In case `state_id` isn’t something nitty-gritty in our application we can extend our User class with the following:
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