fix: Fixed csv file export for 0 chars is not appear

apps/common/drf/parsers/csv.py

@@ -4,13 +4,25 @@
 import chardet
 import unicodecsv
 
+from common.utils import lazyproperty
 from .base import BaseFileParser
+from ..const import CSV_FILE_ESCAPE_CHARS
 
 
 class CSVFileParser(BaseFileParser):
-
     media_type = 'text/csv'
 
+    @lazyproperty
+    def match_escape_chars(self):
+        chars = []
+        for c in CSV_FILE_ESCAPE_CHARS:
+            dq_char = '"{}'.format(c)
+            sg_char = "'{}".format(c)
+            chars.append(dq_char)
+            chars.append(sg_char)
+        return tuple(chars)
+
+
     @staticmethod
     def _universal_newlines(stream):
         """
@@ -18,6 +30,14 @@ class CSVFileParser(BaseFileParser):
         """
         for line in stream.splitlines():
             yield line
+    
+    def __parse_row(self, row):
+        row_escape = []
+        for d in row:
+            if isinstance(d, str) and d.strip().startswith(self.match_escape_chars):
+                d = d.lstrip("'").lstrip('"')
+            row_escape.append(d)
+        return row_escape
 
     def generate_rows(self, stream_data):
         detect_result = chardet.detect(stream_data)
@@ -25,4 +45,5 @@ class CSVFileParser(BaseFileParser):
         lines = self._universal_newlines(stream_data)
         csv_reader = unicodecsv.reader(lines, encoding=encoding)
         for row in csv_reader:
+            row = self.__parse_row(row)
             yield row