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django-modelish-0.1
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مشاهده بیشترتوضیحات
A simple markup and processor to make initial models.py less tedious
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | django-modelish-0.1 |
| نام | django-modelish |
| نسخه کتابخانه | 0.1 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Preston Holmes |
| ایمیل نویسنده | preston@ptone.com |
| آدرس صفحه اصلی | http://github.com/ptone/django-modelish |
| آدرس اینترنتی | https://pypi.org/project/django-modelish/ |
| مجوز | BSD |
django-modelish
===============
.. pull-quote::
Because programmers are lazy...
Modelish is a quick attempt to save a few keystrokes. Many data modeling tools
are a GUI nightmare, with dropdowns and lots of buttons. But sometimes,
especially when you are sketching something out, writing out full Django models
can be a bit tedious.
Modelish will parse a file with a simplified model declaration in a flavor of
YAML and generate Python code for model definition.
Normally I would say source code generation is a "Bad Idea", but really even
in Python, Django models are a mostly declarative syntax
Quickstart
----------
Install django-predicate:
.. code-block:: console
pip install django-modelish
You can then start banging out models like this
.. code-block:: yaml
Poll:
doc: This is the poll model
question:
type: char
max_length: 200
pub_date:
type: datetime
args: date published
Choice:
poll:
type: fk
args: [Poll]
choice_text-char:
max_length: 200
votes:
type: int
You then just use the CLI tool:
.. code-block:: console
modelish path-to-file.yml
This will generate code like this:
.. code-block:: python
class Poll(models.Model):
"""This is the poll model"""
pub_date = models.DateTimeField(
'date published')
question = models.CharField(
max_length=200,
blank=True)
class Choice(models.Model):
choice_text = models.CharField(
max_length=200,
blank=True)
poll = models.ForeignKey(
'Poll')
votes = models.IntegerField()
Syntax
------
The syntax is pretty simple::
<ModelName>:
[doc: docstring]
<fieldname>[-type-alias]:
[type: type-alias],
[args: arglist],
kwarg: value
The field type is represented by a shortened 'type' alias so 'char' becomes
'models.CharField' etc (see grammarish below).
The type can be specified one of two ways, either following the field name with
a hyphen, or explicitly declared as a ``type`` in the field definition.
Positional args to the model specified as an explicit list in square brackets,
or as a comma delimited string.
The remaining block of the field definition consists of kwarg/value pairs.
Working with grammarish
-----------------------
Modelish works with a grammar composed of type aliases and defaults. The standard
types are:
.. code-block:: yaml
auto: AutoField
bigint: BigIntegerField
bool: BooleanField
char: CharField
date: DateField
datetime: DateTimeField
decimal: DecimalField
email: EmailField
file: FileField
float: FloatField
image: ImageField
int: IntegerField
ip: IPAddressField
gip: GenericIPAddressField
nbool: NullBooleanField
pint: PositiveIntegerField
psint: PositiveSmallIntegerField
slug: SlugField
sint: SmallIntegerField
text: TextField
time: TimeField
url: URLField
fk: ForeignKey
m2m: ManyToManyField
timestamp: DateTimeField
For each type - a set of default kwargs is defined in the grammar as
``defaults``:
.. code-block:: yaml
defaults:
bool:
default: true
char:
max_length: 100
blank: true
nbool:
null: true
timestamp:
auto-now: true
This default grammar can be replace, or enhanced by passing your own yaml files
to the command. Use ``--grammar`` to replace the default grammer, and use
``--extra-grammar`` to merge in and update the default grammer with your own
additions or changes.
That's it - this isn't meant to be any sort of full featured model builder or
data modeler, it is just a simple DSLish bootstrap tool to give you
a models.py starting point with a little less typing.
نحوه نصب
نصب پکیج whl django-modelish-0.1:
pip install django-modelish-0.1.whl
نصب پکیج tar.gz django-modelish-0.1:
pip install django-modelish-0.1.tar.gz