title: How can I edit string array fields in nested_form_for rails?
body: <p>First Row in fields_for with "0" index :</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;tr class="ui-state-disabled" id="bold_col"&gt;    
      &lt;td class="col-sm-2 drag-enable"&gt;      
          &lt;input class="form-control diminished-font educations education col1"
                 name="resume[educations_attributes][0][ecolumns][]" value="Institution"
                 placeholder="Institution" type="text" id="1"&gt;
      &lt;/td&gt;
      &lt;td class="col-sm-2 drag-enable"&gt;
          &lt;input class="form-control diminished-font educations education col2"
                 name="resume[educations_attributes][0][ecolumns][]" value="City"
                 placeholder="City" type="text" id="2"&gt;
      &lt;/td&gt;
  &lt;/tr&gt;
  </code></pre>
  
  <p>Second Row in fields_for with "1" index:</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;tr class="fields"&gt;
      &lt;td class="col-sm-2 drag-enable"&gt;
          &lt;%= text_field_tag 'resume[educations_attributes][1][ecolumns][]',"",:class=&gt;"form-control diminished-font col1 educations educations",:placeholder=&gt;"" %&gt;
      &lt;/td&gt;
      &lt;td class="col-sm-2 drag-enable" &gt;
          &lt;%= text_field_tag 'resume[educations_attributes][1][ecolumns][]',"",:class=&gt;"form-control diminished-font col2 educations educations",:placeholder=&gt;"" %&gt;
      &lt;/td&gt;
  &lt;/tr&gt;
  </code></pre>
  
  <p>I can add any number of rows in table through "link_to_add" functionality. On creation it is working fine, but on edit, I am having issues because the name of all this fields created manually. How can I go with rails stuff here? Is there any good approach?  </p>