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flask-admin
Commit e9a9f6fa authored by P.J. Janse van Rensburg's avatar P.J. Janse van Rensburg
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add babel to sqla example and split into separate modules

parent 0fca4043
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examples/sqla/README.rst
View file @ e9a9f6fa
...@@ -9,7 +9,7 @@ To run this example: ...@@ -9,7 +9,7 @@ To run this example:
2. Create and activate a virtual environment:: 2. Create and activate a virtual environment::
virtualenv env virtualenv env -p python3
source env/bin/activate source env/bin/activate
3. Install requirements:: 3. Install requirements::
...@@ -18,10 +18,7 @@ To run this example: ...@@ -18,10 +18,7 @@ To run this example:
4. Run the application:: 4. Run the application::
python examples/sqla/app.py python examples/sqla/run_server.py
The first time you run this example, a sample sqlite database gets populated automatically. To suppress this behaviour, The first time you run this example, a sample sqlite database gets populated automatically. To start
comment the following lines in app.py::: with a fresh database: `rm examples/sqla/admin/sample_db.sqlite`, and then restart the application.
if not os.path.exists(database_path):
build_sample_db()
examples/sqla/admin/__init__.py 0 → 100644
View file @ e9a9f6fa
from flask import Flask, request, session
from flask_sqlalchemy import SQLAlchemy
from flask_babelex import Babel
app = Flask(__name__)
app.config.from_pyfile('config.py')
db = SQLAlchemy(app)
# Initialize babel
babel = Babel(app)
@babel.localeselector
def get_locale():
override = request.args.get('lang')
if override:
session['lang'] = override
return session.get('lang', 'en')
import admin.main
examples/sqla/admin/config.py 0 → 100644
View file @ e9a9f6fa
# set optional bootswatch theme
# see http://bootswatch.com/3/ for available swatches
FLASK_ADMIN_SWATCH = 'cerulean'
# Create dummy secrey key so we can use sessions
SECRET_KEY = '123456790'
# Create in-memory database
DATABASE_FILE = 'sample_db.sqlite'
SQLALCHEMY_DATABASE_URI = 'sqlite:///' + DATABASE_FILE
SQLALCHEMY_ECHO = True
SQLALCHEMY_TRACK_MODIFICATIONS = False
examples/sqla/admin/data.py 0 → 100644
View file @ e9a9f6fa
from admin import db
from admin.models import User, Post, Tag, Tree, AVAILABLE_USER_TYPES
import random
import datetime
def build_sample_db():
"""
Populate a small db with some example entries.
"""
db.drop_all()
db.create_all()
# Create sample Users
first_names = [
'Harry', 'Amelia', 'Oliver', 'Jack', 'Isabella', 'Charlie', 'Sophie', 'Mia',
'Jacob', 'Thomas', 'Emily', 'Lily', 'Ava', 'Isla', 'Alfie', 'Olivia', 'Jessica',
'Riley', 'William', 'James', 'Geoffrey', 'Lisa', 'Benjamin', 'Stacey', 'Lucy'
]
last_names = [
'Brown', 'Brown', 'Patel', 'Jones', 'Williams', 'Johnson', 'Taylor', 'Thomas',
'Roberts', 'Khan', 'Clarke', 'Clarke', 'Clarke', 'James', 'Phillips', 'Wilson',
'Ali', 'Mason', 'Mitchell', 'Rose', 'Davis', 'Davies', 'Rodriguez', 'Cox', 'Alexander'
]
countries = [
("ZA", "South Africa", 27, "ZAR", "Africa/Johannesburg"),
("BF", "Burkina Faso", 226, "XOF", "Africa/Ouagadougou"),
("US", "United States of America", 1, "USD", "America/New_York"),
("BR", "Brazil", 55, "BRL", "America/Sao_Paulo"),
("TZ", "Tanzania", 255, "TZS", "Africa/Dar_es_Salaam"),
("DE", "Germany", 49, "EUR", "Europe/Berlin"),
("CN", "China", 86, "CNY", "Asia/Shanghai"),
]
user_list = []
for i in range(len(first_names)):
user = User()
country = random.choice(countries)
user.type = random.choice(AVAILABLE_USER_TYPES)[0]
user.first_name = first_names[i]
user.last_name = last_names[i]
user.email = first_names[i].lower() + "@example.com"
user.website = "https://www.example.com"
user.ip_address = "127.0.0.1"
user.coutry = country[1]
user.currency = country[3]
user.timezone = country[4]
user.dialling_code = country[2]
user.local_phone_number = '0' + ''.join(random.choices('123456789', k=9))
user_list.append(user)
db.session.add(user)
# Create sample Tags
tag_list = []
for tmp in ["YELLOW", "WHITE", "BLUE", "GREEN", "RED", "BLACK", "BROWN", "PURPLE", "ORANGE"]:
tag = Tag()
tag.name = tmp
tag_list.append(tag)
db.session.add(tag)
# Create sample Posts
sample_text = [
{
'title': "de Finibus Bonorum et Malorum - Part I",
'content': "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor \
incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud \
exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure \
dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. \
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt \
mollit anim id est laborum."
},
{
'title': "de Finibus Bonorum et Malorum - Part II",
'content': "Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque \
laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto \
beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur \
aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi \
nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, \
adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam \
aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam \
corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum \
iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum \
qui dolorem eum fugiat quo voluptas nulla pariatur?"
},
{
'title': "de Finibus Bonorum et Malorum - Part III",
'content': "At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium \
voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati \
cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id \
est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam \
libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod \
maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. \
Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet \
ut et voluptates repudiandae sint et molestiae non recusandae. Itaque earum rerum hic tenetur \
a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis \
doloribus asperiores repellat."
}
]
for user in user_list:
entry = random.choice(sample_text) # select text at random
post = Post()
post.user = user
post.title = "{}'s opinion on {}".format(user.first_name, entry['title'])
post.text = entry['content']
post.background_color = random.choice(["#cccccc", "red", "lightblue", "#0f0"])
tmp = int(1000 * random.random()) # random number between 0 and 1000:
post.date = datetime.datetime.now() - datetime.timedelta(days=tmp)
post.tags = random.sample(tag_list, 2) # select a couple of tags at random
db.session.add(post)
# Create a sample Tree structure
trunk = Tree(name="Trunk")
db.session.add(trunk)
for i in range(5):
branch = Tree()
branch.name = "Branch " + str(i + 1)
branch.parent = trunk
db.session.add(branch)
for j in range(5):
leaf = Tree()
leaf.name = "Leaf " + str(j + 1)
leaf.parent = branch
db.session.add(leaf)
db.session.commit()
return
examples/sqla/app.py → examples/sqla/admin/main.py
View file @ e9a9f6fa
import os from admin import app, db
import os.path as op from admin.models import AVAILABLE_USER_TYPES, User, Post, Tag, Tree
from flask import Flask, Markup from flask import Markup
from flask_sqlalchemy import SQLAlchemy
from sqlalchemy.ext.hybrid import hybrid_property
from sqlalchemy.orm import composite
from sqlalchemy import sql, cast
import uuid
import random
import string
from wtforms import validators from wtforms import validators
...@@ -15,140 +8,27 @@ import flask_admin as admin ...@@ -15,140 +8,27 @@ import flask_admin as admin
from flask_admin.base import MenuLink from flask_admin.base import MenuLink
from flask_admin.contrib import sqla from flask_admin.contrib import sqla
from flask_admin.contrib.sqla import filters from flask_admin.contrib.sqla import filters
from flask_admin.contrib.sqla.form import InlineModelConverter
from flask_admin.contrib.sqla.fields import InlineModelFormList
from flask_admin.contrib.sqla.filters import BaseSQLAFilter, FilterEqual from flask_admin.contrib.sqla.filters import BaseSQLAFilter, FilterEqual
from flask_admin.babel import gettext from flask_admin.babel import gettext
from sqlalchemy_utils import ChoiceType, EmailType, UUIDType, URLType, CurrencyType, Currency
from colour import Color
from sqlalchemy_utils import ColorType, ArrowType, IPAddressType, TimezoneType
import arrow
import enum
# Create application
app = Flask(__name__)
# set optional bootswatch theme
# see http://bootswatch.com/3/ for available swatches
app.config['FLASK_ADMIN_SWATCH'] = 'cerulean'
# Create dummy secrey key so we can use sessions
app.config['SECRET_KEY'] = '123456790'
# Create in-memory database
app.config['DATABASE_FILE'] = 'sample_db.sqlite'
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + app.config['DATABASE_FILE']
app.config['SQLALCHEMY_ECHO'] = True
db = SQLAlchemy(app)
class EnumChoices(enum.Enum):
first = 1
second = 2
AVAILABLE_USER_TYPES = [
(u'admin', u'Admin'),
(u'content-writer', u'Content writer'),
(u'editor', u'Editor'),
(u'regular-user', u'Regular user'),
]
# Create models
class User(db.Model):
id = db.Column(UUIDType(binary=False), default=uuid.uuid4, primary_key=True)
# use a regular string field, for which we can specify a list of available choices later on
type = db.Column(db.String(100))
# fixed choices can be handled in a number of different ways:
enum_choice_field = db.Column(db.Enum(EnumChoices), nullable=True)
sqla_utils_choice_field = db.Column(ChoiceType(AVAILABLE_USER_TYPES), nullable=True)
sqla_utils_enum_choice_field = db.Column(ChoiceType(EnumChoices, impl=db.Integer()), nullable=True)
first_name = db.Column(db.String(100))
last_name = db.Column(db.String(100))
# some sqlalchemy_utils data types (see https://sqlalchemy-utils.readthedocs.io/)
email = db.Column(EmailType, unique=True, nullable=False)
website = db.Column(URLType)
ip_address = db.Column(IPAddressType)
currency = db.Column(CurrencyType, nullable=True, default=None)
timezone = db.Column(TimezoneType(backend='pytz'))
dialling_code = db.Column(db.Integer())
local_phone_number = db.Column(db.String(10))
featured_post_id = db.Column(db.Integer, db.ForeignKey('post.id'))
featured_post = db.relationship('Post', foreign_keys=[featured_post_id])
@hybrid_property
def phone_number(self):
if self.dialling_code and self.local_phone_number:
number = str(self.local_phone_number)
return "+{} ({}) {} {} {}".format(self.dialling_code, number[0], number[1:3], number[3:6], number[6::])
return
@phone_number.expression
def phone_number(cls):
return sql.operators.ColumnOperators.concat(cast(cls.dialling_code, db.String), cls.local_phone_number)
def __str__(self):
return "{}, {}".format(self.last_name, self.first_name)
def __repr__(self):
return "{}: {}".format(self.id, self.__str__())
# Create M2M table
post_tags_table = db.Table('post_tags', db.Model.metadata,
db.Column('post_id', db.Integer, db.ForeignKey('post.id')),
db.Column('tag_id', db.Integer, db.ForeignKey('tag.id'))
)
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(120))
text = db.Column(db.Text, nullable=False)
date = db.Column(db.Date)
# some sqlalchemy_utils data types (see https://sqlalchemy-utils.readthedocs.io/)
background_color = db.Column(ColorType)
created_at = db.Column(ArrowType, default=arrow.utcnow())
user_id = db.Column(UUIDType(binary=False), db.ForeignKey(User.id))
user = db.relationship(User, foreign_keys=[user_id], backref='posts')
tags = db.relationship('Tag', secondary=post_tags_table)
def __str__(self):
return "{}".format(self.title)
class Tag(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.Unicode(64), unique=True)
def __str__(self):
return "{}".format(self.name)
class Tree(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(64))
# recursive relationship
parent_id = db.Column(db.Integer, db.ForeignKey('tree.id'))
parent = db.relationship('Tree', remote_side=[id], backref='children')
def __str__(self):
return "{}".format(self.name)
# Flask views # Flask views
@app.route('/') @app.route('/')
def index(): def index():
return '<a href="/admin/">Click me to get to Admin!</a>' tmp = u"""
<p><a href="/admin/?lang=en">Click me to get to Admin! (English)</a></p>
<p><a href="/admin/?lang=cs">Click me to get to Admin! (Czech)</a></p>
<p><a href="/admin/?lang=de">Click me to get to Admin! (German)</a></p>
<p><a href="/admin/?lang=es">Click me to get to Admin! (Spanish)</a></p>
<p><a href="/admin/?lang=fa">Click me to get to Admin! (Farsi)</a></p>
<p><a href="/admin/?lang=fr">Click me to get to Admin! (French)</a></p>
<p><a href="/admin/?lang=pt">Click me to get to Admin! (Portuguese)</a></p>
<p><a href="/admin/?lang=ru">Click me to get to Admin! (Russian)</a></p>
<p><a href="/admin/?lang=pa">Click me to get to Admin! (Punjabi)</a></p>
<p><a href="/admin/?lang=zh_CN">Click me to get to Admin! (Chinese - Simplified)</a></p>
<p><a href="/admin/?lang=zh_TW">Click me to get to Admin! (Chinese - Traditional)</a></p>
"""
return tmp
# Custom filter class # Custom filter class
...@@ -164,13 +44,15 @@ class FilterLastNameBrown(BaseSQLAFilter): ...@@ -164,13 +44,15 @@ class FilterLastNameBrown(BaseSQLAFilter):
# Customized User model admin # Customized User model admin
def phone_number_formatter (view, context, model, name): def phone_number_formatter(view, context, model, name):
return Markup("<nobr>{}</nobr>".format(model.phone_number)) if model.phone_number else None return Markup("<nobr>{}</nobr>".format(model.phone_number)) if model.phone_number else None
def is_numberic_validator(form, field): def is_numberic_validator(form, field):
if field.data and not field.data.isdigit(): if field.data and not field.data.isdigit():
raise validators.ValidationError(gettext('Only numbers are allowed.')) raise validators.ValidationError(gettext('Only numbers are allowed.'))
class UserAdmin(sqla.ModelView): class UserAdmin(sqla.ModelView):
can_view_details = True # show a modal dialog with records details can_view_details = True # show a modal dialog with records details
...@@ -187,8 +69,8 @@ class UserAdmin(sqla.ModelView): ...@@ -187,8 +69,8 @@ class UserAdmin(sqla.ModelView):
}, },
} }
form_widget_args = { form_widget_args = {
'id':{ 'id': {
'readonly':True 'readonly': True
} }
} }
column_list = [ column_list = [
...@@ -215,7 +97,7 @@ class UserAdmin(sqla.ModelView): ...@@ -215,7 +97,7 @@ class UserAdmin(sqla.ModelView):
'enum_choice_field', 'enum_choice_field',
'sqla_utils_choice_field', 'sqla_utils_choice_field',
'sqla_utils_enum_choice_field', 'sqla_utils_enum_choice_field',
] + column_list ] + column_list
form_columns = [ form_columns = [
'id', 'id',
'type', 'type',
...@@ -265,10 +147,11 @@ class UserAdmin(sqla.ModelView): ...@@ -265,10 +147,11 @@ class UserAdmin(sqla.ModelView):
form.featured_post.query_factory = lambda: Post.query.filter(Post.user_id == form._obj.id).all() form.featured_post.query_factory = lambda: Post.query.filter(Post.user_id == form._obj.id).all()
return form return form
# Customized Post model admin # Customized Post model admin
class PostAdmin(sqla.ModelView): class PostAdmin(sqla.ModelView):
column_display_pk = True column_display_pk = True
column_list = ['id', 'user', 'title', 'date', 'tags', 'background_color', 'created_at',] column_list = ['id', 'user', 'title', 'date', 'tags', 'background_color', 'created_at', ]
column_editable_list = ['background_color', ] column_editable_list = ['background_color', ]
column_default_sort = ('date', True) column_default_sort = ('date', True)
create_modal = True create_modal = True
...@@ -346,12 +229,13 @@ class TreeView(sqla.ModelView): ...@@ -346,12 +229,13 @@ class TreeView(sqla.ModelView):
'parent', 'parent',
] ]
form_excluded_columns = ['children', ] form_excluded_columns = ['children', ]
column_filters = ['id', 'name', 'parent',] column_filters = ['id', 'name', 'parent', ]
# override the 'render' method to pass your own parameters to the template # override the 'render' method to pass your own parameters to the template
def render(self, template, **kwargs): def render(self, template, **kwargs):
return super(TreeView, self).render(template, foo="bar", **kwargs) return super(TreeView, self).render(template, foo="bar", **kwargs)
# Create admin # Create admin
admin = admin.Admin(app, name='Example: SQLAlchemy', template_mode='bootstrap3') admin = admin.Admin(app, name='Example: SQLAlchemy', template_mode='bootstrap3')
...@@ -363,145 +247,3 @@ admin.add_view(TreeView(Tree, db.session, category="Other")) ...@@ -363,145 +247,3 @@ admin.add_view(TreeView(Tree, db.session, category="Other"))
admin.add_sub_category(name="Links", parent_name="Other") admin.add_sub_category(name="Links", parent_name="Other")
admin.add_link(MenuLink(name='Back Home', url='/', category='Links')) admin.add_link(MenuLink(name='Back Home', url='/', category='Links'))
admin.add_link(MenuLink(name='External link', url='http://www.example.com/', category='Links')) admin.add_link(MenuLink(name='External link', url='http://www.example.com/', category='Links'))
def build_sample_db():
"""
Populate a small db with some example entries.
"""
import random
import datetime
db.drop_all()
db.create_all()
# Create sample Users
first_names = [
'Harry', 'Amelia', 'Oliver', 'Jack', 'Isabella', 'Charlie', 'Sophie', 'Mia',
'Jacob', 'Thomas', 'Emily', 'Lily', 'Ava', 'Isla', 'Alfie', 'Olivia', 'Jessica',
'Riley', 'William', 'James', 'Geoffrey', 'Lisa', 'Benjamin', 'Stacey', 'Lucy'
]
last_names = [
'Brown', 'Brown', 'Patel', 'Jones', 'Williams', 'Johnson', 'Taylor', 'Thomas',
'Roberts', 'Khan', 'Clarke', 'Clarke', 'Clarke', 'James', 'Phillips', 'Wilson',
'Ali', 'Mason', 'Mitchell', 'Rose', 'Davis', 'Davies', 'Rodriguez', 'Cox', 'Alexander'
]
countries = [
("ZA", "South Africa", 27, "ZAR", "Africa/Johannesburg"),
("BF", "Burkina Faso", 226, "XOF", "Africa/Ouagadougou"),
("US", "United States of America", 1, "USD", "America/New_York"),
("BR", "Brazil", 55, "BRL", "America/Sao_Paulo"),
("TZ", "Tanzania", 255, "TZS", "Africa/Dar_es_Salaam"),
("DE", "Germany", 49, "EUR", "Europe/Berlin"),
("CN", "China", 86, "CNY", "Asia/Shanghai"),
]
user_list = []
for i in range(len(first_names)):
user = User()
country = random.choice(countries)
user.type = random.choice(AVAILABLE_USER_TYPES)[0]
user.first_name = first_names[i]
user.last_name = last_names[i]
user.email = first_names[i].lower() + "@example.com"
user.website = "https://www.example.com"
user.ip_address = "127.0.0.1"
user.coutry = country[1]
user.currency = country[3]
user.timezone = country[4]
user.dialling_code = country[2]
user.local_phone_number = '0' + ''.join(random.choices('123456789', k=9))
user_list.append(user)
db.session.add(user)
# Create sample Tags
tag_list = []
for tmp in ["YELLOW", "WHITE", "BLUE", "GREEN", "RED", "BLACK", "BROWN", "PURPLE", "ORANGE"]:
tag = Tag()
tag.name = tmp
tag_list.append(tag)
db.session.add(tag)
# Create sample Posts
sample_text = [
{
'title': "de Finibus Bonorum et Malorum - Part I",
'content': "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor \
incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud \
exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure \
dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. \
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt \
mollit anim id est laborum."
},
{
'title': "de Finibus Bonorum et Malorum - Part II",
'content': "Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque \
laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto \
beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur \
aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi \
nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, \
adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam \
aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam \
corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum \
iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum \
qui dolorem eum fugiat quo voluptas nulla pariatur?"
},
{
'title': "de Finibus Bonorum et Malorum - Part III",
'content': "At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium \
voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati \
cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id \
est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam \
libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod \
maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. \
Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet \
ut et voluptates repudiandae sint et molestiae non recusandae. Itaque earum rerum hic tenetur \
a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis \
doloribus asperiores repellat."
}
]
for user in user_list:
entry = random.choice(sample_text) # select text at random
post = Post()
post.user = user
post.title = "{}'s opinion on {}".format(user.first_name, entry['title'])
post.text = entry['content']
post.background_color = random.choice(["#cccccc", "red", "lightblue", "#0f0"])
tmp = int(1000*random.random()) # random number between 0 and 1000:
post.date = datetime.datetime.now() - datetime.timedelta(days=tmp)
post.tags = random.sample(tag_list, 2) # select a couple of tags at random
db.session.add(post)
# Create a sample Tree structure
trunk = Tree(name="Trunk")
db.session.add(trunk)
for i in range(5):
branch = Tree()
branch.name = "Branch " + str(i+1)
branch.parent = trunk
db.session.add(branch)
for j in range(5):
leaf = Tree()
leaf.name = "Leaf " + str(j+1)
leaf.parent = branch
db.session.add(leaf)
db.session.commit()
return
if __name__ == '__main__':
# Build a sample db on the fly, if one does not exist yet.
app_dir = op.realpath(os.path.dirname(__file__))
database_path = op.join(app_dir, app.config['DATABASE_FILE'])
if not os.path.exists(database_path):
build_sample_db()
# Start app
app.run(debug=True)
examples/sqla/admin/models.py 0 → 100644
View file @ e9a9f6fa
from admin import db
from sqlalchemy.ext.hybrid import hybrid_property
from sqlalchemy import sql, cast
import uuid
from sqlalchemy_utils import ChoiceType, EmailType, UUIDType, URLType, CurrencyType
from sqlalchemy_utils import ColorType, ArrowType, IPAddressType, TimezoneType
import arrow
import enum
AVAILABLE_USER_TYPES = [
(u'admin', u'Admin'),
(u'content-writer', u'Content writer'),
(u'editor', u'Editor'),
(u'regular-user', u'Regular user'),
]
class EnumChoices(enum.Enum):
first = 1
second = 2
# Create models
class User(db.Model):
id = db.Column(UUIDType(binary=False), default=uuid.uuid4, primary_key=True)
# use a regular string field, for which we can specify a list of available choices later on
type = db.Column(db.String(100))
# fixed choices can be handled in a number of different ways:
enum_choice_field = db.Column(db.Enum(EnumChoices), nullable=True)
sqla_utils_choice_field = db.Column(ChoiceType(AVAILABLE_USER_TYPES), nullable=True)
sqla_utils_enum_choice_field = db.Column(ChoiceType(EnumChoices, impl=db.Integer()), nullable=True)
first_name = db.Column(db.String(100))
last_name = db.Column(db.String(100))
# some sqlalchemy_utils data types (see https://sqlalchemy-utils.readthedocs.io/)
email = db.Column(EmailType, unique=True, nullable=False)
website = db.Column(URLType)
ip_address = db.Column(IPAddressType)
currency = db.Column(CurrencyType, nullable=True, default=None)
timezone = db.Column(TimezoneType(backend='pytz'))
dialling_code = db.Column(db.Integer())
local_phone_number = db.Column(db.String(10))
featured_post_id = db.Column(db.Integer, db.ForeignKey('post.id'))
featured_post = db.relationship('Post', foreign_keys=[featured_post_id])
@hybrid_property
def phone_number(self):
if self.dialling_code and self.local_phone_number:
number = str(self.local_phone_number)
return "+{} ({}) {} {} {}".format(self.dialling_code, number[0], number[1:3], number[3:6], number[6::])
return
@phone_number.expression
def phone_number(cls):
return sql.operators.ColumnOperators.concat(cast(cls.dialling_code, db.String), cls.local_phone_number)
def __str__(self):
return "{}, {}".format(self.last_name, self.first_name)
def __repr__(self):
return "{}: {}".format(self.id, self.__str__())
# Create M2M table
post_tags_table = db.Table('post_tags', db.Model.metadata,
db.Column('post_id', db.Integer, db.ForeignKey('post.id')),
db.Column('tag_id', db.Integer, db.ForeignKey('tag.id'))
)
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(120))
text = db.Column(db.Text, nullable=False)
date = db.Column(db.Date)
# some sqlalchemy_utils data types (see https://sqlalchemy-utils.readthedocs.io/)
background_color = db.Column(ColorType)
created_at = db.Column(ArrowType, default=arrow.utcnow())
user_id = db.Column(UUIDType(binary=False), db.ForeignKey(User.id))
user = db.relationship(User, foreign_keys=[user_id], backref='posts')
tags = db.relationship('Tag', secondary=post_tags_table)
def __str__(self):
return "{}".format(self.title)
class Tag(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.Unicode(64), unique=True)
def __str__(self):
return "{}".format(self.name)
class Tree(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(64))
# recursive relationship
parent_id = db.Column(db.Integer, db.ForeignKey('tree.id'))
parent = db.relationship('Tree', remote_side=[id], backref='children')
def __str__(self):
return "{}".format(self.name)
examples/sqla/templates/admin/index.html → examples/sqla/admin/templates/admin/index.html
View file @ e9a9f6fa
...@@ -4,7 +4,7 @@ ...@@ -4,7 +4,7 @@
<div class="container"> <div class="container">
<div class="row"> <div class="row">
<div class="col-sm-10 col-sm-offset-1"> <div class="col-sm-10 col-sm-offset-1">
<h1>Flask-Admin example</h1> <h1>Flask-Admin {{ _gettext('example') }}</h1>
<p class="lead"> <p class="lead">
Basic SQLAlchemy model views. Basic SQLAlchemy model views.
</p> </p>
...@@ -14,7 +14,7 @@ ...@@ -14,7 +14,7 @@
<p> <p>
The views are generated automatically, but it is perfectly possible to customize them to suit your needs. The views are generated automatically, but it is perfectly possible to customize them to suit your needs.
</p> </p>
<a class="btn btn-primary" href="/"><i class="glyphicon glyphicon-chevron-left"></i> Back</a> <a class="btn btn-primary" href="/"><i class="glyphicon glyphicon-chevron-left"></i> {{ _gettext('Back') }}</a>
</div> </div>
</div> </div>
</div> </div>
......
examples/sqla/run_server.py 0 → 100644
View file @ e9a9f6fa
from admin import app
from admin.data import build_sample_db
import os
import os.path as op
# Build a sample db on the fly, if one does not exist yet.
app_dir = op.join(op.realpath(os.path.dirname(__file__)), 'admin')
database_path = op.join(app_dir, app.config['DATABASE_FILE'])
if not os.path.exists(database_path):
build_sample_db()
# Start app
app.run(debug=True)
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