Changes between Version 21 and Version 22 of BossaExampleOne

Timestamp:

Jul 30, 2008, 9:44:22 AM (17 years ago)

Author:

davea

Comment:

--

BossaExampleOne

@@ -1 @@
-= Bossa example 1 =
+= Example 1: the basics =
 
 In this application volunteers view synthetic images,
@@ -56 +56 @@
 The display function is:
 {{{
-function job_show($job, $inst, $user) {
-    $info = $job->get_info($job);
-    $path = $info->path;
-    page_head("Find the Ellipse");
-    echo "
-        <form method=get action=bossa_job_finished.php>
-        Click on the center of the ellipse.
-        If you don't see one, click here:
-        <input type=submit name=submit value=None>
-        <br><br>
-        <input type=hidden name=bji value=$inst->id>
-        <input type=image name=pic src=$path>
-        </form>
-    ";
-    page_tail();
-}
+     9  function job_show($job, $inst, $user) {
+    10      $info = $job->get_info($job);
+    11      $path = $info->path;
+    12      page_head("Find the Ellipse");
+    13      echo "
+    14          <form method=get action=bossa_job_finished.php>
+    15          Click on the center of the ellipse.
+    16          If you don't see one, click here:
+    17          <input type=submit name=submit value=None>
+    18          <br><br>
+    19          <input type=hidden name=bji value=$inst->id>
+    20          <input type=image name=pic src=$path>
+    21          </form>
+    22      ";
+    23      page_tail();
+    24  }
+
 }}}
+
+It calls a Bossa API function to get the job's opaque data (line 9).
+Then it generates a web page containing the image
+within a form, so that clicking on the image (or on the None button)
+will invoke '''bossa_job_finished.php'''.
 
 The policy functions are as follows.