first commit

Author: remigermain

.gitignore

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+
+# Created by https://www.toptal.com/developers/gitignore/api/python
+# Edit at https://www.toptal.com/developers/gitignore?templates=python
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# End of https://www.toptal.com/developers/gitignore/api/python

.vscode/launch.json

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+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Python: Current File",
+            "type": "python",
+            "request": "launch",
+            "program": "${file}",
+            "console": "integratedTerminal"
+        }
+    ]
+}

.vscode/settings.json

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+{
+    "python.defaultInterpreterPath": "./venv/bin/python"
+}

README.md

@@ -1 +1,28 @@
-# nested-multi-dimentional-parser
+# nested-multi-dimentional-parser
+
+Parser for nested data in multipart form
+
+# Usage
+
+```python
+from nested_multipart_parser import parser
+...
+
+class YourViewSet(viewsets.ViewSet):
+	parser_classes = (NestedMultipartParser,)
+```
+
+To enable JSON and multipart
+
+```python
+from drf_nested_field_multipart import NestedMultipartParser
+from rest_framework.parsers import JSONParser
+from rest_framework import viewsets
+
+class YourViewSet(viewsets.ViewSet):
+	parser_classes = (JSONParser, NestedMultipartParser)
+```
+
+# Installation
+
+`pip install drf-nested-field-multipart`

nested_multipart_parser/__init__.py

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+from .parser import NestedParser
+
+__all__ = [
+    'NestedParser'
+]

nested_multipart_parser/drf.py

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+from .parser import NestedParser as NestPars
+from rest_framework.parsers import MultiPartParser
+from django.http.multipartparser import MultiPartParserError
+from django.http import QueryDict
+
+
+class NestedParser(NestPars):
+
+    @property
+    def validate_data(self):
+        dtc = QueryDict(mutable=True)
+        dtc.update(super().validate_data)
+        dtc.mutable = False
+        return dtc
+
+
+class DrfNestedParser(MultiPartParser):
+
+    def parse(self, stream, media_type=None, parser_context=None):
+        parsed = super().parse(stream, media_type, parser_context)
+
+        copy = parsed.data.copy()
+        if parsed.files:
+            copy.update(parsed.files)
+        parser = NestedParser(copy)
+        if parser.is_valid():
+            return parser.validate_data
+        if parser.errors:
+            raise MultiPartParserError(parser.errors)
+        return parsed

nested_multipart_parser/parser.py

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+import re
+
+
+class NestedParser:
+    _valid = None
+    errors = None
+    _reg = re.compile(r"\[|\]")
+
+    def __init__(self, data):
+        self.data = data
+
+    def split_key(self, key):
+        # remove space
+        k = key.replace(" ", "")
+        # remove empty string and count key length for check is a good format
+        # reduce + filter are a hight cost so do manualy with for loop
+        results = []
+        check = -2
+
+        for select in self._reg.split(k):
+            if select:
+                results.append(select)
+                check += len(select) + 2
+
+        if len(k) != check:
+            raise Exception(f"invalid format from key {key}")
+        return results
+
+    def set_type(self, dtc, key, value, full_keys):
+        if key.isdigit():
+            key = int(key)
+            if len(dtc) < key:
+                raise Exception(
+                    f"key \"{full_keys}\" is upper than actual list")
+            if len(dtc) == key:
+                dtc.append(value)
+                return key
+        elif key not in dtc:
+            dtc[key] = value
+        return key
+
+    def construct(self, data):
+        dictionary = {}
+
+        for key in data:
+            keys = self.split_key(key)
+            tmp = dictionary
+
+            # optimize with while loop instend of for in with zip function
+            i = 0
+            lenght = len(keys) - 1
+            while i < lenght:
+                set_type = [] if keys[i+1].isdigit() else {}
+                tmp = tmp[self.set_type(tmp, keys[i], set_type, key)]
+                i += 1
+
+            self.set_type(tmp, keys[-1], data[key], key)
+        return dictionary
+
+    def is_valid(self):
+        self._valid = False
+        try:
+            self.__validate_data = self.construct(self.data)
+            self._valid = True
+        except Exception as err:
+            self.errors = err
+        return self._valid
+
+    @property
+    def validate_data(self):
+        if self._valid is None:
+            raise ValueError(
+                "You need to be call is_valid() before access validate_data")
+        if self._valid is False:
+            raise ValueError("You can't get validate data")
+        return self.__validate_data

requirements/common.txt

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+-r common.txt
+Django
+djangorestframework

requirements/dev.txt

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+[metadata]
+description-file = README.md