Databases
StackOverflow2013
Postsdbo
POQuery using three terms in SQL/PHP
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POQuery using three terms in SQL/PHP
    primarykey
    data
    text
    <p>I'm using WordPress, but this question is more pertaining to the SQL involved. I'll gladly move it if I need to.</p> <p>I'm working on <a href="http://www.libertyguide.com/jobs" rel="nofollow">http://www.libertyguide.com/jobs</a> and I'm trying to alter the filtering mechanics. Currently it's a global <code>OR</code> query.</p> <p>Anyways, I have three filtering lists, and I'm storing what's selected into three strings (interests, type, experience) in the following way:</p> <pre><code>"( $wpdb-&gt;terms.slug = 'webdevelopment' OR $wpdb-&gt;terms.slug = 'journalism' OR ... ) AND" </code></pre> <p>It's populated by whatever is selected in my filtering lists.</p> <p>When it comes down to it, I have this as a basic query (I'm leaving out the <code>LEFT JOINS</code>):</p> <p>Before:</p> <pre><code>SELECT * FROM $wpdb-&gt;posts WHERE ($wpdb-&gt;terms.slug = 'fromlist1' OR $wpdb-&gt;terms.slug = 'fromlist2' OR $wpdb-&gt;terms.slug = 'fromlist3') AND $wpdb-&gt;term_taxonomy.taxonomy = 'jobtype'... </code></pre> <p>After:</p> <pre><code>SELECT * FROM $wpdb-&gt;posts WHERE ($wpdb-&gt;terms.slug = 'fromlist1' OR $wpdb-&gt;terms.slug = 'fromlist1again') AND ($wpdb-&gt;terms.slug = 'fromlist2' OR $wpdb-&gt;terms.slug = 'fromlist2again') AND ($wpdb-&gt;terms.slug = 'fromlist3' OR $wpdb-&gt;terms.slug = 'fromlist3again') AND $wpdb-&gt;term_taxonomy.taxonomy = 'jobtype'... </code></pre> <p>So essentially I want to go from an </p> <p><code>OR</code> filter </p> <p><strong>to</strong> </p> <p>an <code>AND</code> filter with <code>OR</code> filtering inbetween.</p> <p>My new filtering only works when one item overall is selected, but returns nothing when I select more than one thing (that I know would match up with a few posts).</p> <p>I've thought through the logic and I don't see anything wrong with it. I know nothing is wrong with anything else, so it has to be the query itself.</p> <p>Any step in the right direction would be greatly appreciated. Thanks!</p> <p><strong>UPDATE</strong> From the confusion, basically I have this:</p> <pre><code>"SELECT ...... WHERE $terms ..." </code></pre> <p>but I WANT </p> <pre><code>"SELECT ....... WHERE $interests AND $type AND $experience" </code></pre> <p>I don't want to have it filter <code>$interest[1] OR $interest[2] OR $type[1] OR $experience[1]</code>, but instead want it to filter <code>($interest[1] OR $interest[2]) AND ($type[1]) AND ($experience[1])</code></p> <p>I hope this makes more sense</p> <p>*<strong><em>UPDATE 2</em>*</strong></p> <p>Here's and example:</p> <p>In my interests list, I select for example three things: WebDevelopment, Academia, Journalism.</p> <p>In my type list, I choose two things: Fulltime, Parttime</p> <p>In my experience list, I choose three things: Earlycareer, Midcareer, Latecareer.</p> <p>When I run my query, I want to make sure that each record has AT LEAST one of each of the three lists. Possible Results: (WebDevelopment, Parttime, Midcareer), (Academia, Fulltime, Earlycareer, Midcareer).</p> <p>NOT A RESULT: (Journalism, Earlycareer) - missing fulltime or parttime</p> <p>I really hope this clears it up more. I'm willing to give compensation if I can get this working correctly.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USJosh Allen
    1. USJosh Allen
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POQuery using three terms in SQL/PHP
      1. This table or related slice is empty.
      1. VTUpMod
    1. COMaybe this will help, as there is a lot of `WP` syntax that I know is throwing me off and might be throwing others off. Can you give a sample list of `$interest[1`, `$interest[2]`, `$type[1]`, `$experience[1]` and then show which rows you are expecting/wanting the modified query to return? As far as I can tell, you're saying it has to show up in both `experience` and `type` and at least 1 of the `interest` lists, is that right? If so, is the issue with making WP do it?
      singulars
      1. POQuery using three terms in SQL/PHP
      1. USAnthony
    2. CO@Anthony I think you got it. It's not just WP that I'm having problems with, it's the SQL statement. Look out for an update with a sample list.
      singulars
      1. POQuery using three terms in SQL/PHP
      1. USJosh Allen
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload