vb.net qr code library CHANGING THE LOOK OF YOUR BLOG in Visual Basic .NET

Maker DataMatrix in Visual Basic .NET CHANGING THE LOOK OF YOUR BLOG

CHAPTER 16 CHANGING THE LOOK OF YOUR BLOG
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Figure 16-15. Recent comments listed
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This is a useful addition to the blog, but it could be better. It doesn t show to which story or post the comments belong. A reader might be particularly interested in what other people have to say about a story he commented on recently. A contributor might be looking for comments on her own stories. As its name implies, the Customizable Comment Listings plug-in is flexible enough to accommodate such additions. Let s replace the simple call to the plug-in function with the code shown in Listing 16-11. This is another example provided in the plug-in s documentation. Listing 16-11. New Version of the get_recent_comments Template Function in index.php <h2>< php _e('Recent Comments'); ></h2> <ul class="recentcomments"> < php c2c_get_recent_comments(5, "<li>%comment_author% said \"%comment_excerpt%\" in <br />%post_URL%</li>"); > </ul> This function looks complicated, but it has only one more parameter. It uses a very powerful format template Scott has defined. Each of the terms enclosed in percent signs (%) is substituted by some data from the list of recent comments. The substitution names are fairly
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CHAPTER 16 CHANGING THE LOOK OF YOUR BLOG
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self-explanatory. For example, %comment_author% will be replaced with the comment author s name, and %comment_excerpt% will be replaced with the first few words from the comment. You could also have the plug-in output a link to the comment author s web site, if the comment writer provided one. The rest of the format parameter (taken from the plug-in author s example) puts the comment details in a list item with the link to the post on a separate line. Figure 16-16 shows the output.
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Figure 16-16. A different version of the recent comments list
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This version gives more information, but it seems rather cluttered and the most important information the name of the post and its link isn t easy to discern. So, let s make one more change to this code. You will remove the comment excerpt and just link to the comment, but with the post title. Surprisingly, although this plug-in has more than 40 replaceable tags, none of them match the desired format exactly. You could have the post title as a link to the post, or the post title as a link to the top of the comment section, but none have the post title as a link to the specific comment. However, you can create this format by using two separate replaceable tags, as shown in Listing 16-12.
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CHAPTER 16 CHANGING THE LOOK OF YOUR BLOG
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Listing 16-12. Final Version of the Recent Comments Code in index.php <h2>< php _e('Recent Comments'); ></h2> <ul class="recentcomments"> < php c2c_get_recent_comments(5, "<li>%comment_author% on <a href=\"%comment_url%\" " . "title=\"%comment_excerpt%\" >%post_title%</a></li>"); > </ul> As you can see in Figure 16-17, the list is much less cluttered now. As a bonus, hovering over the link to the comment gives the comment excerpt as a tool tip. That s the title part of the code in the format parameter used in Listing 16-12.
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Figure 16-17. The finished recent comment list
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Cleaning Up the Code
You have modified an existing theme, expanding it to do what you want. However, a couple areas could use some cleaning up. These involve making the PHP code safer and eliminating duplication in the CSS rules.
CHAPTER 16 CHANGING THE LOOK OF YOUR BLOG
Safer PHP Code
I mentioned earlier that if a theme requires a plug-in and that plug-in is not present, you will get errors on your blog. Sometimes, depending on the place the error occurs, your blog page may not work at all. Take a look at Figure 16-18. Here, I have disabled the RSS Link List plug-in. The error on the page is at exactly the place the plug-in template function is called. No more of the template code is executed, even though the rest of the page would have displayed correctly. Imagine if you had a call to a template function at the beginning of your theme template. The resultant page might contain a cryptic error message and nothing else!
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