Advances in Computers, Vol. 25 by Marshall C. Yovits

By Marshall C. Yovits

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The setQuery() function takes the string of a query and stores it for later use, rather than executing it right away. When we call loadObjectList(), the previously set query is run and the individual rows in the result are loaded into an array as objects. If we run into an error, we display it and stop the component. php, with the name set to adminForm (for JavaScript references). A table with the adminlist class is then started and headers are added. All the headers are typical, except for the first one that acts as a "check all" checkbox that automatically selects all the records on the screen.

Determines that the page request is intended for the reviews component, it will call BuildParseRoute() and pass in an array of the relevant URL segments. These segments are ordered the same way we set them in ReviewsBuildRoute(). We initialize an array $vars to hold the variables we return. Then we set the task and id elements of this array to the first and second elements of $segments respectively. Finally, we return the array, which Joomla! in turn sets as request variables. This way, the entire routing process is transparent to the rest of the code: all of the request variables you would normally expect to be present under a conventional script call will be there.

Com/component/reviews/view/1, this just means that you followed a non-SEF URL; this will clear up as you navigate around. Adding Comments Most visitors will take our word for it when we say that a restaurant is great (or that it isn't). However, there may be a few who disagree. Why not give them an opportunity to leave comments about their experiences with the restaurant? We'll need a place to store them, so enter the following SQL command into your database console: CREATE TABLE 'jos_reviews_comments' ( 'id' int(11) NOT NULL auto_increment, 'review_id' int(11) NOT NULL, 'user_id' int(11) NOT NULL, 'full_name' varchar(50) NOT NULL, 'comment_date' datetime NOT NULL, 'comment_text' text NOT NULL, PRIMARY KEY ('id') ) If you're using phpMyAdmin, pull up the following screen and enter jos_reviews_comments as the table name and 6 in the Number of fields section: [ 55 ] Front-End Development After clicking Go, a grid is displayed; fill in details so that it looks like the following screen: Be sure you make the field id into an automatically incremented primary key: We also want to add another database class to handle the basic functions.

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