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	<title>Comments for Derivante</title>
	<atom:link href="http://www.derivante.com/comments/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.derivante.com</link>
	<description>to obtain or receive from a source</description>
	<lastBuildDate>Mon, 08 Mar 2010 16:36:12 -0500</lastBuildDate>
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	<item>
		<title>Comment on SEO: Taking control of search by Петр</title>
		<link>http://www.derivante.com/2009/03/30/seo-taking-control-of-search/comment-page-1/#comment-416</link>
		<dc:creator>Петр</dc:creator>
		<pubDate>Mon, 08 Mar 2010 16:36:12 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=265#comment-416</guid>
		<description>Самарский Техникум приглашает на учёбу  на профессии Судоводитель - помощник механика судов речного флота.
Подробнее на сайте feo-flot.ru</description>
		<content:encoded><![CDATA[<p>Самарский Техникум приглашает на учёбу  на профессии Судоводитель &#8211; помощник механика судов речного флота.<br />
Подробнее на сайте feo-flot.ru</p>
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	<item>
		<title>Comment on Amazon&#8217;s EBS (Elastic Block Store) by Malika Pergola</title>
		<link>http://www.derivante.com/2008/08/21/amazons-ebs-elastic-block-store/comment-page-1/#comment-415</link>
		<dc:creator>Malika Pergola</dc:creator>
		<pubDate>Fri, 05 Mar 2010 05:21:24 +0000</pubDate>
		<guid isPermaLink="false">http://justinleider.wordpress.com/?p=28#comment-415</guid>
		<description>Can I order more then one at a time?</description>
		<content:encoded><![CDATA[<p>Can I order more then one at a time?</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on SOLR Performance Benchmarks – Single vs. Multi-core Index Shards by Terry Jones</title>
		<link>http://www.derivante.com/2009/05/05/solr-performance-benchmarks-single-vs-multi-core-index-shards/comment-page-1/#comment-414</link>
		<dc:creator>Terry Jones</dc:creator>
		<pubDate>Mon, 01 Mar 2010 15:12:05 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=350#comment-414</guid>
		<description>These graphs are amazing - does anyone know what tool was used to generate them?</description>
		<content:encoded><![CDATA[<p>These graphs are amazing &#8211; does anyone know what tool was used to generate them?</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on PHP ActiveRecord Available for Beta Testing by Kien La</title>
		<link>http://www.derivante.com/2009/05/19/php-activerecord-available-for-beta-testing/comment-page-3/#comment-413</link>
		<dc:creator>Kien La</dc:creator>
		<pubDate>Sat, 27 Feb 2010 15:59:21 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=548#comment-413</guid>
		<description>That&#039;s good to hear. You&#039;re welcome to submit patches by forking the project on github or just emailing us.</description>
		<content:encoded><![CDATA[<p>That&#8217;s good to hear. You&#8217;re welcome to submit patches by forking the project on github or just emailing us.</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on PHP ActiveRecord Available for Beta Testing by Peter</title>
		<link>http://www.derivante.com/2009/05/19/php-activerecord-available-for-beta-testing/comment-page-3/#comment-412</link>
		<dc:creator>Peter</dc:creator>
		<pubDate>Fri, 26 Feb 2010 17:24:57 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=548#comment-412</guid>
		<description>Thank you for publishing these tools!  This project has been a huge help to our development efforts.  We&#039;ve been doing seo website design and development at industryforge.com for a long time, and love the efficiencies we gain from using your tools.  We now have this code running in multiple production environments.  We would love to contribute if desired.</description>
		<content:encoded><![CDATA[<p>Thank you for publishing these tools!  This project has been a huge help to our development efforts.  We&#8217;ve been doing seo website design and development at industryforge.com for a long time, and love the efficiencies we gain from using your tools.  We now have this code running in multiple production environments.  We would love to contribute if desired.</p>
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	</item>
	<item>
		<title>Comment on PHP GIS Functions by Arun</title>
		<link>http://www.derivante.com/2009/04/14/php-gis-functions/comment-page-1/#comment-411</link>
		<dc:creator>Arun</dc:creator>
		<pubDate>Tue, 16 Feb 2010 16:22:26 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=313#comment-411</guid>
		<description>1) True. I agree. My latlongs are very close  http://txtb.in/djf
results: your centroid: 
12.982224693774, 77.624733038687
mean centroid: 
12.982286543056, 77.624984548135

I haven&#039;t tested this manually yet. But I am supposed to get a latlong a bit northeast. 

I didn&#039;t get enough time to test it with other latlong sets. Will do it.</description>
		<content:encoded><![CDATA[<p>1) True. I agree. My latlongs are very close  <a href="http://txtb.in/djf" rel="nofollow">http://txtb.in/djf</a><br />
results: your centroid:<br />
12.982224693774, 77.624733038687<br />
mean centroid:<br />
12.982286543056, 77.624984548135</p>
<p>I haven&#8217;t tested this manually yet. But I am supposed to get a latlong a bit northeast. </p>
<p>I didn&#8217;t get enough time to test it with other latlong sets. Will do it.</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on PHP GIS Functions by Clay vanSchalkwijk</title>
		<link>http://www.derivante.com/2009/04/14/php-gis-functions/comment-page-1/#comment-410</link>
		<dc:creator>Clay vanSchalkwijk</dc:creator>
		<pubDate>Tue, 16 Feb 2010 15:47:02 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=313#comment-410</guid>
		<description>1) I&#039;m using a flat-earth model for performance and simplicity in the example above, which for the majority of calculations will suffice.  If you need to do long distance calculations, you will need to switch over great-circle distance calculation.

2) Can you give me the example of this you are working with so I can try to debug the problem.</description>
		<content:encoded><![CDATA[<p>1) I&#8217;m using a flat-earth model for performance and simplicity in the example above, which for the majority of calculations will suffice.  If you need to do long distance calculations, you will need to switch over great-circle distance calculation.</p>
<p>2) Can you give me the example of this you are working with so I can try to debug the problem.</p>
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	</item>
	<item>
		<title>Comment on PHP GIS Functions by Arun</title>
		<link>http://www.derivante.com/2009/04/14/php-gis-functions/comment-page-1/#comment-409</link>
		<dc:creator>Arun</dc:creator>
		<pubDate>Tue, 16 Feb 2010 13:51:10 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=313#comment-409</guid>
		<description>Good. But two problems:
1) you don&#039;t seem to consider the curvature of the earth&#039;s surface in to consideration. 
2) in some cases, the centroid calculation is erroneous compared to a normal mean of the lat longs calculated separately.  

Or am I missing something completely?</description>
		<content:encoded><![CDATA[<p>Good. But two problems:<br />
1) you don&#8217;t seem to consider the curvature of the earth&#8217;s surface in to consideration.<br />
2) in some cases, the centroid calculation is erroneous compared to a normal mean of the lat longs calculated separately.  </p>
<p>Or am I missing something completely?</p>
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	</item>
	<item>
		<title>Comment on PHP ActiveRecord Available for Beta Testing by Kien La</title>
		<link>http://www.derivante.com/2009/05/19/php-activerecord-available-for-beta-testing/comment-page-3/#comment-408</link>
		<dc:creator>Kien La</dc:creator>
		<pubDate>Fri, 12 Feb 2010 03:49:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=548#comment-408</guid>
		<description>Hey Kirk, if you could provide more specifics on the headaches you mentioned I can see if I can address them since more than likely other people have run across the same things and I&#039;d like to get it fixed. Just drop me an email.

We would definitely like for people to contribute. Just fork the project on github or you can email patches to me.</description>
		<content:encoded><![CDATA[<p>Hey Kirk, if you could provide more specifics on the headaches you mentioned I can see if I can address them since more than likely other people have run across the same things and I&#8217;d like to get it fixed. Just drop me an email.</p>
<p>We would definitely like for people to contribute. Just fork the project on github or you can email patches to me.</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on PHP ActiveRecord Available for Beta Testing by Kirk Bushell</title>
		<link>http://www.derivante.com/2009/05/19/php-activerecord-available-for-beta-testing/comment-page-3/#comment-407</link>
		<dc:creator>Kirk Bushell</dc:creator>
		<pubDate>Fri, 12 Feb 2010 03:31:59 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=548#comment-407</guid>
		<description>First and foremost - great work guys. I&#039;ve been using this in a production environment (with a few headaches), but there&#039;s a few things I thought I might offer in terms of what I think the library should/shouldn&#039;t have.

I think you&#039;ve made a blooper with the design decision to force standards in PHP. With a library like Rails, it&#039;s easy to do because developers are either starting new projects with it, or are working on projects that already use it. I&#039;ve had quite a few problems trying to get the library working with one of our legacy systems. I got there - but not without some changes. First and foremost is PHPActiveRecord&#039;s use of converting field names - this is a problem as all our field names have a capslocked suffix (don&#039;t ask).

Secondly, this was also a problem when reporting errors - as the library tried to humanize the field names, so where we had fields like price_ADV, in the error - it would show up as &quot;price a d v&quot;, as it stuck to it&#039;s own naming conventions.

I&#039;m sure for most cases, the library isn&#039;t going to be an issue, but I think considering that it&#039;s a new library, and a lot of people are going to want to drop it in as a solution to easy database connectivity, forcing standards may not work out as you had hoped.

Keep up the good work :)

PS - is there any way for us to contribute directly?</description>
		<content:encoded><![CDATA[<p>First and foremost &#8211; great work guys. I&#8217;ve been using this in a production environment (with a few headaches), but there&#8217;s a few things I thought I might offer in terms of what I think the library should/shouldn&#8217;t have.</p>
<p>I think you&#8217;ve made a blooper with the design decision to force standards in PHP. With a library like Rails, it&#8217;s easy to do because developers are either starting new projects with it, or are working on projects that already use it. I&#8217;ve had quite a few problems trying to get the library working with one of our legacy systems. I got there &#8211; but not without some changes. First and foremost is PHPActiveRecord&#8217;s use of converting field names &#8211; this is a problem as all our field names have a capslocked suffix (don&#8217;t ask).</p>
<p>Secondly, this was also a problem when reporting errors &#8211; as the library tried to humanize the field names, so where we had fields like price_ADV, in the error &#8211; it would show up as &#8220;price a d v&#8221;, as it stuck to it&#8217;s own naming conventions.</p>
<p>I&#8217;m sure for most cases, the library isn&#8217;t going to be an issue, but I think considering that it&#8217;s a new library, and a lot of people are going to want to drop it in as a solution to easy database connectivity, forcing standards may not work out as you had hoped.</p>
<p>Keep up the good work <img src='http://www.derivante.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>PS &#8211; is there any way for us to contribute directly?</p>
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	</item>
	<item>
		<title>Comment on PHP ActiveRecord Available for Beta Testing by Björn Göransson</title>
		<link>http://www.derivante.com/2009/05/19/php-activerecord-available-for-beta-testing/comment-page-3/#comment-406</link>
		<dc:creator>Björn Göransson</dc:creator>
		<pubDate>Thu, 11 Feb 2010 09:20:39 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=548#comment-406</guid>
		<description>Hi,

I&#039;m coming from CodeIgniter Active Record DB library, where one has the ability to specify a TABLE PREFIX (eg &quot;myapp_&quot;) that will be prepended on all table names.

Is this feature available already (I haven&#039;t found it yet, though)

Thanks for a versatile tool.</description>
		<content:encoded><![CDATA[<p>Hi,</p>
<p>I&#8217;m coming from CodeIgniter Active Record DB library, where one has the ability to specify a TABLE PREFIX (eg &#8220;myapp_&#8221;) that will be prepended on all table names.</p>
<p>Is this feature available already (I haven&#8217;t found it yet, though)</p>
<p>Thanks for a versatile tool.</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on PHP Rapid Application Development with ZF1.8 and AR by Internet Banking</title>
		<link>http://www.derivante.com/2009/05/21/php-rapid-application-development-with-zf18-and-ar/comment-page-1/#comment-405</link>
		<dc:creator>Internet Banking</dc:creator>
		<pubDate>Thu, 04 Feb 2010 07:18:27 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=627#comment-405</guid>
		<description>Just  blowing some  in between class time on  Stumbleupon and I found your  article .  Not  typically what I  prefer to  learn about, but it was  absolutely worth my time. Thanks.</description>
		<content:encoded><![CDATA[<p>Just  blowing some  in between class time on  Stumbleupon and I found your  article .  Not  typically what I  prefer to  learn about, but it was  absolutely worth my time. Thanks.</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on SOLR Performance Benchmarks – Single vs. Multi-core Index Shards by Leon</title>
		<link>http://www.derivante.com/2009/05/05/solr-performance-benchmarks-single-vs-multi-core-index-shards/comment-page-1/#comment-404</link>
		<dc:creator>Leon</dc:creator>
		<pubDate>Tue, 02 Feb 2010 12:32:17 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=350#comment-404</guid>
		<description>Good overview. Have you any experience with sharding by document content or type, e.g., by date ranges per shard? http://www.lucidimagination.com/Community/Hear-from-the-Experts/Articles/Scaling-Lucene-and-Solrhttp://www.lucidimagination.com/Community/Hear-from-the-Experts/Articles/Scaling-Lucene-and-Solr</description>
		<content:encoded><![CDATA[<p>Good overview. Have you any experience with sharding by document content or type, e.g., by date ranges per shard? <a href="http://www.lucidimagination.com/Community/Hear-from-the-Experts/Articles/Scaling-Lucene-and-Solrhttp://www.lucidimagination.com/Community/Hear-from-the-Experts/Articles/Scaling-Lucene-and-Solr" rel="nofollow">http://www.lucidimagination.com/Community/Hear-from-the-Experts/Articles/Scaling-Lucene-and-Solrhttp://www.lucidimagination.com/Community/Hear-from-the-Experts/Articles/Scaling-Lucene-and-Solr</a></p>
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	<item>
		<title>Comment on SOLR Performance Benchmarks – Single vs. Multi-core Index Shards by Subroto</title>
		<link>http://www.derivante.com/2009/05/05/solr-performance-benchmarks-single-vs-multi-core-index-shards/comment-page-1/#comment-403</link>
		<dc:creator>Subroto</dc:creator>
		<pubDate>Sat, 23 Jan 2010 19:34:59 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=350#comment-403</guid>
		<description>The writeup by Mr. Justin was very informative. Please let me know if it is possible to partition indexes using SOLR. Apache has provided a whitepaper regarding the issue. I need some more detailed information on it.</description>
		<content:encoded><![CDATA[<p>The writeup by Mr. Justin was very informative. Please let me know if it is possible to partition indexes using SOLR. Apache has provided a whitepaper regarding the issue. I need some more detailed information on it.</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on SEO: Taking control of search by Jasun Douglarr</title>
		<link>http://www.derivante.com/2009/03/30/seo-taking-control-of-search/comment-page-1/#comment-402</link>
		<dc:creator>Jasun Douglarr</dc:creator>
		<pubDate>Mon, 04 Jan 2010 17:37:02 +0000</pubDate>
		<guid isPermaLink="false">http://www.derivante.com/?p=265#comment-402</guid>
		<description>This is classical in terms of search engine optimization. Nothing appears to annoy upon it than this.</description>
		<content:encoded><![CDATA[<p>This is classical in terms of search engine optimization. Nothing appears to annoy upon it than this.</p>
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