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How to access app.config in a blueprint?


How to access app.config in a blueprint?

By : Islam Papaxov
Date : November 28 2020, 08:01 AM
this one helps. You could use flask.current_app to take the place of app in blueprint.
code :


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Ember blueprint that injects environment config?

Ember blueprint that injects environment config?


By : sxdong92
Date : March 29 2020, 07:55 AM
I hope this helps you . No there's no existing magic in Ember to my knowledge sorry. When you generate a route, something very similar to what you are talking about happens but the code is rather complex. The ember generate route new_route function has a call to this function
code :
function addRouteToRouter(name, options) {
  var routerPath = path.join(options.root, 'app', 'router.js');
  var source = fs.readFileSync(routerPath, 'utf-8');

  var routes = new EmberRouterGenerator(source);
  var newRoutes = routes.add(name, options);

  fs.writeFileSync(routerPath, newRoutes.code());
}
module.exports = EmberRouterGenerator;

var recast    = require('recast');
var traverse  = require('es-simpler-traverser');

var Scope     = require('./scope');
var DefineCallExpression = require('./visitors/define-call-expression.js');

var findFunctionExpression = require('./helpers/find-function-expression');
var hasRoute               = require('./helpers/has-route');
var newFunctionExpression  = require('./helpers/new-function-expression');
var resourceNode           = require('./helpers/resource-node');
var routeNode              = require('./helpers/route-node');

function EmberRouterGenerator(source, ast) {
  this.source = source;
  this.ast = ast;
  this.mapNode = null;
  this.scope = new Scope();

  this.visitors = {
    CallExpression: new DefineCallExpression(this.scope, this)
  };

  this._ast();
  this._walk();
}

EmberRouterGenerator.prototype.clone = function() {
  var route = new EmberRouterGenerator(this.source);

  return route;
};

EmberRouterGenerator.prototype._ast  = function() {
  this.ast = this.ast || recast.parse(this.source);
};

EmberRouterGenerator.prototype._walk  = function() {
  var scope = this.scope;
  var visitors = this.visitors;

  traverse(this.ast, {
    exit: function(node) {
      var visitor = visitors[node.type];

      if (visitor && typeof visitor.exit === 'function') {
        visitor.exit(node);
      }
    },

    enter: function(node) {
      var visitor = visitors[node.type];

      if (visitor && typeof visitor.enter === 'function') {
        visitor.enter(node);
      }
    }
  });
};

EmberRouterGenerator.prototype.add = function(routeName, options) {
  if (typeof this.mapNode === 'undefined') {
    throw new Error('Source doesn\'t include Ember.map');
  }

  var route = this.clone();
  var routes  = route.mapNode.arguments[0].body.body;

  route._add.call(
    route,
    routeName.split('/'),
    routes,
    options
  );

  return route;
};



EmberRouterGenerator.prototype._add = function(nameParts, routes, options) {
  options = options || {};
  var parent   =  nameParts[0];
  var name     = parent;
  var children = nameParts.slice(1);
  var route    = hasRoute(parent, routes);

  if (!route) {
    if (options.type === 'resource') {
      route = resourceNode(name, options);
      routes.push(route);
    } else {
      route = routeNode(name, options);
      routes.push(route);
    }
  }

  if (children.length > 0) {
    var routesFunction = findFunctionExpression(route.expression.arguments);

    if (!routesFunction) {
      routesFunction = newFunctionExpression();
      route.expression.arguments.push(routesFunction);
    }

    this._add(children, routesFunction.body.body, options);
  }
};

EmberRouterGenerator.prototype.remove = function(routeName) {
  if (typeof this.mapNode === 'undefined') {
    throw new Error('Source doesn\'t include Ember.map');
  }

  var route = this.clone();
  var routes  = route.mapNode.arguments[0].body.body;

  var newRoutes = route._remove.call(
    route,
    routeName.split('/'),
    routes
  );

  if (newRoutes) {
    route.mapNode.arguments[0].body.body = newRoutes;
  }

  return route;
};



EmberRouterGenerator.prototype._remove = function(nameParts, routes) {
  var parent   =  nameParts[0];
  var name     = parent;
  var children = nameParts.slice(1);
  var route    = hasRoute(parent, routes);
  var newRoutes;

  if (children.length > 0) {
    var routesFunction = route.expression && findFunctionExpression(route.expression.arguments);

    if (routesFunction) {
      newRoutes = this._remove(children, routesFunction.body.body);

      if (newRoutes) {
        routesFunction.body.body = newRoutes;
      }

      return routes;
    }
  } else {
    if (route) {
      routes = routes.filter(function(node) {
        return node !== route;
      });

      return routes;
    } else {
      return false;
    }
  }
};

EmberRouterGenerator.prototype.code = function(options) {
  options = options || { tabWidth: 2, quote: 'single' };

  return recast.print(this.ast, options).code;
};
Read Apache FOP config and fonts in OSGi blueprint container

Read Apache FOP config and fonts in OSGi blueprint container


By : Karl Schreiner
Date : March 29 2020, 07:55 AM
I hope this helps you . So, I've found the solution. We cannot use File() with "bundleresource://..." path, but we can use URI():
code :
        URL url = getClass().getClassLoader().getResource(FOP_XCONF_FILE);
        fopFactory = FopFactory.newInstance(url.toURI(), url.openStream());
Flask blueprint cannot read sqlite3 DATABASES from config file

Flask blueprint cannot read sqlite3 DATABASES from config file


By : Leland
Date : March 29 2020, 07:55 AM
like below fixes the issue Your my_cool_app is an instance of Blueprint which doesn't have a config attribute. You need to use current_app:
code :
import sqlite3
from flask import Flask, g, current_app
from .views import my_cool_app

# create application
def create_app(debug=True):
    app = Flask(__name__, instance_relative_config=True)
    app.debug = debug
    app.config.from_object('config')
    app.config.from_pyfile('config.py')
    app.register_blueprint(my_cool_app)
    return app

def connect_db():
    return sqlite3.connect(current_app.config['DATABASE'])

@my_cool_app.before_request
def before_request():
    g.db = connect_db()

@my_cool_app.teardown_request
def teardown_request(exception):
    db = getattr(g, 'db', None)
    if db is not None:
        db.close()
Retrieving config from a blueprint in Sanic app

Retrieving config from a blueprint in Sanic app


By : Emmett Fitz-hume
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I would suggest a slightly different approach, based on the 12 Factor App (very interesting read which, among others, provides a nice guideline on how to protect and isolate your sensitive info).
The general idea is to place your sensitive and configuration variables in a file that is going to be gitignored and therefore will only be available locally.
code :
MONGO_URL=http://no_peeking_this_is_secret:port/
SENSITIVE_PASSWORD=for_your_eyes_only
CONFIG_OPTION_1=config_this
DEBUG=True
...
from decouple import config


MONGO_URL = config('MONGO_URL')
CONFIG_OPTION_1 = config('CONFIG_OPTION_1', default='')
DEBUG = config('DEBUG', cast=bool, default=True)
...
import settings

...
auth_route = Blueprint('authentication')
mongo_url = settings.MONGO_URL
user_repository = UserRepository(mongo_url)
... 
AssertionError in Flask App when connecting to database using config in blueprint

AssertionError in Flask App when connecting to database using config in blueprint


By : Stanislaw Chmielewsk
Date : March 29 2020, 07:55 AM
hope this fix your issue I was able to fix this by putting my app instantiation into my extensions file instead of my init file:
extensions.py
code :
from flask import Flask
app = Flask(__name__, instance_relative_config=True)
app.config.from_pyfile("config.py")
from flask import current_app
from .._src.extensions import mysql
mysql.init_app(current_app)
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