Adding qiime-map property to the prep template

Author: josenavas

qiita_db/metadata_template/prep_template.py

@@ -505,3 +505,25 @@ def status(self):
         pd_statuses = conn_handler.execute_fetchall(sql, (self._id,))
 
         return infer_status(pd_statuses)
+
+    @property
+    def qiime_map_fp(self):
+        """The QIIME mapping file path of the prep template
+
+        Returns
+        -------
+        str
+            The filepath of the QIIME mapping file
+        """
+        conn_handler = SQLConnectionHandler()
+
+        sql = """SELECT filepath_id, filepath
+                 FROM qiita.filepath
+                    JOIN qiita.{0} USING (filepath_id)
+                    JOIN qiita.filepath_type USING (filepath_type_id)
+                 WHERE {1} = %s AND filepath_type = 'qiime_map'
+                 ORDER BY filepath_id DESC""".format(self._filepath_table,
+                                                     self._id_column)
+        fn = conn_handler.execute_fetchall(sql, (self._id,))[0][1]
+        base_dir = get_mountpoint('templates')[0][1]
+        return join(base_dir, fn)

qiita_db/metadata_template/test/test_prep_template.py

@@ -1293,6 +1293,12 @@ def test_update_category(self):
         self.assertEqual(self.tester['1.SKB8.640193']['center_name'], 'FOO')
         self.assertEqual(self.tester['1.SKD8.640184']['center_name'], 'BAR')
 
+    def test_qiime_map_fp(self):
+        pt = PrepTemplate(1)
+        exp = join(get_mountpoint('templates')[0][1],
+                   '1_prep_1_qiime_19700101-000000.txt')
+        self.assertEqual(pt.qiime_map_fp, exp)
+
 
 EXP_PREP_TEMPLATE = (
     'sample_name\tbarcodesequence\tcenter_name\tcenter_project_name\t'