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classy-django-datatables-1.0.8
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مشاهده بیشتر
تبلیغات ما
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مشاهده بیشترتوضیحات
Create datatables quickly for django models.
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | classy-django-datatables-1.0.8 |
| نام | classy-django-datatables |
| نسخه کتابخانه | 1.0.8 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Stephen Mitchell |
| ایمیل نویسنده | stephen@echodot.com |
| آدرس صفحه اصلی | https://github.com/scuml/django-datatables |
| آدرس اینترنتی | https://pypi.org/project/classy-django-datatables/ |
| مجوز | Apache |
Django Datatables
======
The django datatables library makes creating tables that make use of the datatables library simple, reusable, pythonic, djangoesque, and quite a bit fun.
**Project Goals**
* Allow creation of tables in a style similar to django forms.
* Remove tedious editing of datatables javascript config to match columns.
* Configure ajax URLs automagically.
* Simplify use of Django style URLs within the datatable
Installation
------------
`pip install classy-django-datatables`
Quick Setup
-----
Download the library and place it somewhere accessable in your PYTHONPATH. The following is a basic example to demonstrate the ease to get up and running.
**settings.py**
Add `django_datables` to the `INSTALLED_APPS` setting.
```python
INSTALLED_APPS = [
...
'django_datatables',
...
]
```
**urls.py**
Add the following line to urls.py.
```python
url(r'^__django_datatables__/', include('django_datatables.urls')),
```
**views.py**
```python
from django_datatables.datatable import *
from django_datatables import column
class StudyListDatatable(Datatable):
code_name = column.TextColumn()
class Meta:
model = Study
def study_list(request)
datatable = StudyListDatatable()
return render(request, 'datatables_demo.html',
{"datatable": datatable}
)
```
**Template**
```python
{{datatable.render}}
```
Building Up
-----------
**Custom Title/Value**
In the example shown, the code_name, as the variable name is automatically used to fetch the field and then used as the header for the column. There will often be cases where the variable name will not coincide to either of these and can be overritten with the following:
```python
created_date = column.TextColumn(title='Made on')
scientist = column.TextColumn(value='scientist__scientist_name')
```
**CSS Class**
A css class to apply to each cell in the column.
```python
scientist = column.TextColumn(css_class='text-danger')
```
**Joined tables**
Fields in joined tables are accessed using the same syntax used in django.
```python
scientist = column.TextColumn(value='scientist__scientist_name')
```
**Adding links**
Links support django's URL dispatcher. Just add the URL name to the link attribute and the arguments that get passed to the link. You don't even need the column listed -- Django Datables will integentally fetch the needed field and populate the links accordingly.
```python
code_name = column.TextColumn(link='edit_study', link_args=['slug'])
```
**Data from multiple fields**
To pull data from multiple fields into one column, declare the column as a `StringColumn`. If needed, add the fields to be requested from the database in the `Meta.extra_fields` attribute. Finally, render the desired with the render_* method.
```python
name = column.StringColumn()
class Meta:
model = Employee
extra_fields = ('first_name', 'last_name')
def render_name(self, row):
return "{} {}".format(row['first_name'], row['last_name']).strip()
```
Other Querysets
---------------
The initial queryset can be overridden if a more complex query is needed, or if a default filter needs to be in place.
```python
def get_initial_queryset(self, request):
return Employee.objects.filter(manager=request.user)
```
Meta
----
**model**: the primary model to be displayed in the table
```python
model = Study
```
**order_columns**: a list of the columns that can be sorted
```python
order_columns = ['study_name', 'created_date', 'modified_date', 'scientist']
```
**initial_order**: the inital sort of the table
```python
initial_order = ['created_date', 'scientist']
```
**searching**: (default: `false`) Enable the search box
**search_fields** the fields that the search box will search for content. This can be more finely controlled in the filter_by_search() method.
```python
search_fields = ['study_name', 'code_name', 'scientist__scientist_name']
```
**title**: The title of the report. Only used for the filename and sheet name of the excel export.
```python
title = "Study List"
```
**export_to_excel**: If openpyxl is installed and set to true, will display a link to download an excel file containing all rows in the table.
```python
export_to_excel = True
```
Custom rendering
-------
Any field can have it's render method extended using render_*
```python
def render_code_name(self, value):
return value.lower()
def render_created_date(self, value):
return value.strftime("%m/%d/%Y")
```
Columns
-------
**Attributes**
* title - Displayed in the header
* css_class - A CSS class to apply to the column
* value - The value in the database to use
* link - The django url name this column will link to
* link_args - the link arguments
The following column types are available in the django_datatables.column module.
**TextColumn**: A standard column that will display the contents of a single field.
**ConstantTextColumn(text)**: Will display text independant of the database. Ex: Edit, or Delete
**StringColumn**: A column that will render text using multiple fields. Request the data with `Meta.extra_fields` and format the text with the render_* method.
**CheckBoxColumn**: Render a checkbox.
**GlyphiconColumn(icon)**: Displayan icon from bootstrap's v3 glyphicon set.
**FontAwesome4(icon)**: Display an icon from the Font Awesome 4 library. Ex: `column.FontAwesome4Column('stop-circle fa-2x')`
(Must manually include bootstrap in source.)
**DateColumn**: Render a date in Y-m-d format.
Filters
-------
Filter forms can be connected to the datatable by assigning a django form to Meta.filter_form. Naming the fields as django queryset keys (eg: `name__icontains`, `count__gte`) will auto filter the form as needed.
### Filter example
```python
class EmployeeFilterForm(forms.Form):
last_name__icontains = forms.CharField(label="Last Name", required=False)
class StudyListDatatable(datatable.Datatable):
name = column.StringColumn()
class Meta:
model = Employee
filter_form = EmployeeFilterForm
extra_fields = ('first_name', 'last_name')
def render_name(self, row):
return "{} {}".format(row['first_name'], row['last_name']).strip()
```
In the template, the form can be displayed with the following. There /must/ be a `.datatable-form` class attached to the form.
```html
<form class='datatable-form'>
{{datatable.filter_form}}
<button type="submit">Submit</button>
</form>
```
Permissions
-----------
It's important to not just lock down the view, but also the ajax call that retrieves the data. Fortunately, authentication is easily handled with mixins. Django 1.9 ships with LoginRequiredMixin, UserPassesTestMixin, and PermissionRequiredMixin which handle most use cases. Ensure the permission-related mixins are stated first.
More information regarding mixins can be found at the official
[django authentication doc](https://docs.djangoproject.com/en/1.9/topics/auth/default/#the-loginrequired-mixin).
```python
from django.contrib.auth.mixins import LoginRequiredMixin
class EmployeeListDatatable(LoginRequiredMixin, datatable.Datatable):
...
```
نیازمندی
| مقدار | نام |
|---|---|
| >=2 | django |
| - | pyquerystring |
زبان مورد نیاز
| مقدار | نام |
|---|---|
| >=3.6 | Python |
نحوه نصب
نصب پکیج whl classy-django-datatables-1.0.8:
pip install classy-django-datatables-1.0.8.whl
نصب پکیج tar.gz classy-django-datatables-1.0.8:
pip install classy-django-datatables-1.0.8.tar.gz