ruby - xpath selecting text from link in <td> & text from <td> -


i have following code works well:

rows = diary_html.xpath('//*[@id="main"]/div[2]/table/tbody/tr') food_diary = rows.collect |row|   detail = {}   [     ["food", 'td[1]/text()'],        ["calories", 'td[2]/text()'],     ["carbs", 'td[3]/text()'],     ["fat", 'td[4]/text()'],     ["protein", 'td[5]/text()'],     ["cholest", 'td[6]/text()'],   ].each |name, xpath|     detail[name] = row.at_xpath(xpath).to_s.strip   end   detail end

however "food" td not include text, link want text.

i know can use 'td[1]/a/text()'to link text, how do both?

'td[1]/a/text()' or 'td[1]/text()'

edited - added snippet.

i trying include <tr class="meal_header"> <td class="first alt">breakfast</td> on first row, lines other regular tds on other rows whilst excluding td1 on bottom row. 

<tr class="meal_header">   <td class="first alt">breakfast</td>   <td class="alt">calories</td>   <td class="alt">carbs</td>   <td class="alt">fat</td>   <td class="alt">protein</td>   <td class="alt">sodium</td>   <td class="alt">sugar</td> </tr> <tr>   <td class="first alt">               <a onclick="showeditfood(3992385560);" href="#">hovis (uk - white bread (40g) toasted flora light marg, 2 slice</a> </td>   <td>262</td>      <td>36</td>   <td>9</td>   <td>7</td>   <td>0</td>   <td>3</td> </tr> <tr class="bottom">   <td class="first alt" style="z-index: 10">     <a href="/food/add_to_diary?meal=0" class="add_food">add food</a>     <div class="quick_tools">     <a href="#quick_tools_0" class="toggle_diary_options">quick tools</a>     <div id="quick_tools_0" class="quick_tools_options hidden">     <ul>       <li><a onclick="showlightbox(200, 250, '/food/quick_add?meal=0&amp;date=2013-04-15'); return false;">quick add calories</a></li>      <li><a href="/meal/new?meal=0">remember meal</a></li>      <li><a href="/food/copy_meal?date=2013-04-15&amp;from_date=2013-04-14&amp;meal=0&amp;username=nickwild1">copy yesterday</a></li>        <li><a href="#recent_meals_0" class="toggle_diary_options">copy date</a></li>                   <li><a href="#recent_meals_copy_to_0" class="toggle_diary_options">copy date</a></li>     </ul>     </div>    <div id="recent_meals_0" class="recent_meal_options hidden">     <ul id="recent_meal_options_0">     <li class="header">copy date?</li>             <li><a href="/food/copy_meal?date=2013-04-15&amp;from_date=2013-04-14&amp;meal=0&amp;username=nickwild1">sunday, april 14</a></li>     <li><a href="/food/copy_meal?date=2013-04-15&amp;from_date=2013-04-13&amp;meal=0&amp;username=nickwild1">saturday, april 13</a></li>     </ul>     </div>     </div>   </td>   <td>285</td>   <td>39</td>   <td>9</td>   <td>10</td>   <td>0</td>   <td>3</td>   <td></td>

the short answer is: use nokogiri::xml::element#text, give text of element plus subelements (your a example).

you can clean code quite bit:

keys = ["food", "calories", "carbs", "fat", "protein", "cholest"] food_diary = rows.collect |row|   hash[keys.zip row.search('td').map(&:text)] end

and final tip, avoid using xpath html, css nicer.


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