小编sss*_*ver的帖子

是否有可能以一种从将部署它的Web目录路径中抽象出来的方式开发Angular.js应用程序？

我试图将Angular.js应用程序放在Web服务器子目录http://example.com/myproject/中,但路由器将我重定向到Web服务器根目录 - http://example.com.

下面是我的Angular.js应用程序:

var myproject = angular.module('myproject', []);

myproject.config(function($routeProvider, $locationProvider) {
  $routeProvider.
    when('/', {templateUrl: 'partials/index.html', controller: IndexCtrl}).
    otherwise({redirectTo: '/'});

  $locationProvider.html5Mode(true);
});



function IndexCtrl($scope, $location) {

}

MongoDB ID对于单个数据库群集是唯一的.是否可以使用其ID来获取文档,而无需指定集合名称？

如果有,怎么样？

如果不是,为什么不呢？

我有看起来像这样的代码：

EXPECT_EQ(
    subsystem->previousTouchscreenState,
    expectedTouchscreenState
);

当我运行时clang-format，它会将代码段重新格式化为如下所示：

EXPECT_EQ(
    subsystem->previousTouchscreenState,
    expectedTouchscreenState );

这很违反直觉。我希望我的多行函数调用（尽管EXPECT_EQ在本例中是一个宏）在其自己的行上具有右圆括号，缩进到函数名称的级别，如第一个代码段所示。

我该如何完成clang-format呢？

非常感谢。

Python的unittest和PyMongo有一个奇怪的问题.测试随机成功或失败:

import unittest
from pymongo import Connection

from tractor import Tractor




class TestTractor(unittest.TestCase):
    def setUp(self):
        self.tractor = Tractor(1)

        self.mongo = Connection()
        self.db = self.mongo.tractor

        self.db.classes.remove({'name': {'$regex':'^test_'}})

        self.action_class_id = self.db.classes.insert({'name': 'test_action',
                                                       'metaclass': 'action'})
        self.object_class_id = self.db.classes.insert({'name': 'test_object',
                                                       'metaclass': 'object'})


    def tearDown(self):
        self.tractor = None



    def test_create_class(self):
        cid1 = self.tractor.create_action_class('test_create_action_class')
        cid2 = self.tractor.create_object_class('test_create_object_class')

        self.assertNotEqual(cid1, None)
        self.assertNotEqual(cid2, None)

        action_obj = self.db.classes.find_one({'_id': cid1})
        object_obj = self.db.classes.find_one({'_id': cid2})

        self.assertNotEqual(cid1, cid2)
        self.assertEqual(action_obj['_id'], cid1)
        self.assertEqual(object_obj['_id'], cid2)

        self.assertEqual(action_obj['name'], 'test_create_action_class')
        self.assertEqual(object_obj['name'], 'test_create_object_class')

正在测试的类:

from pymongo import Connection
from pymongo.objectid …

我有以下基类:

class CorsHandler(tornado.web.RequestHandler):

    def set_default_headers(self):
        super(CorsHandler, self).set_default_headers()

        self.set_header('Access-Control-Allow-Origin', self.request.headers.get('Origin', '*'))
        self.set_header('Access-Control-Allow-Methods', 'GET, PUT, POST, DELETE, OPTIONS')
        self.set_header('Access-Control-Allow-Credentials', 'true')
        self.set_header('Access-Control-Allow-Headers', ','.join(
            self.request.headers.get('Access-Control-Request-Headers', '').split(',') +
            ['Content-Type']
        ))

        self.set_header('Content-Type', 'application/json')

    def options(self, *args, **kwargs):
        pass

以下处理程序:

def get(self, resource_id=None, field=None):
    try:
        if resource_id is None:
            response = self.resource.query.filter_by(is_deleted=False).all()

        else:
            record = self.resource.query.get(int(resource_id))

            if field is None:
                response = record
            else:
                response = {field: getattr(record, field)}

        self.db.session.commit()

    except Exception, e:
        self.db.session.rollback()

        self.send_error(500, message=e.message)

    self.write(response)

一切都很简单,除了Content-Type没有设置.请注意,正确设置了任何其他标头.

这是怎么回事？

相对于我的项目根目录meson.build所在的位置，我的所有源文件都位于src/.

是否可以在 meson.build 中指定这些源文件，而不会强迫我在它们全部加上前缀src/，因为这有点多余？

做的时候:

$ sudo pypy -m easy_install lxml

回应是:

Searching for lxml

[...snip...]

ERROR: /bin/sh: 1: xslt-config: not found

** make sure the development packages of libxml2 and libxslt are installed **

Using build configuration of libxslt 
/usr/lib/pypy/lib-python/2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
  warnings.warn(msg)
warning: no files found matching '*.txt' under directory 'src/lxml/tests'
src/lxml/lxml.etree.c:8:22: fatal error: pyconfig.h: No such file or directory
compilation terminated.
error: Setup script exited with error: command 'cc' failed with exit status 1

同时,sudo pip install …

我使用的SQLAlchemy的单表继承了Transaction,StudentTransaction和CompanyTransaction:

class Transaction(Base):
    __tablename__ = 'transaction'

    id = Column(Integer, primary_key=True)

    # Who paid? This depends on whether the Transaction is a
    # CompanyTransaction or a StudentTransaction. We use
    # SQLAlchemy's Single Table Inheritance to make this work.
    discriminator = Column('origin', String(50))
    __mapper_args__ = {'polymorphic_on': discriminator}

    # When?
    time = Column(DateTime, default=datetime.utcnow)

    # Who administered it?
    staff_id = Column(Integer, ForeignKey('staff.id'))
    staff = relationship(
        'Staff',
        primaryjoin='and_(Transaction.staff_id==Staff.id)'
    )

    # How much?
    amount = Column(Integer)  # Negative for …

我试图做这个看似微不足道的事情:

static func list() -> Promise<[Activity]> {
    let endpoint = "\(self.baseUrl)/v1/activities"

    return Promise { fulfill, reject in
        self.fetchHeaders { (headers) in
            return Alamofire.request(
                endpoint,
                method: .get,
                parameters: nil,
                encoding: JSONEncoding.default,
                headers: headers
            ).validate().responseJSON().then() { response in
                guard let json = response as? JSON else {
                    reject(ActivityError.parse("Malformed JSON"))
                }

                guard let jsonActivities = json["activities"] as? [JSON] else {
                    reject(ActivityError.parse("Missing field"))
                }

                var activities: [Activity] = []

                for jsonActivity in jsonActivities {
                    guard let activity = Activity(json: jsonActivity) else {
                        reject(ActivityError.parse("Unable to …

在以下代码中:

let cell = tableView.dequeueReusableCell(
    withIdentifier: "MyCell",
    for: indexPath
) as MyTableViewCell  // 'UITableViewCell' is not convertible to 'MyTableViewCell'; did you mean to use 'as!' to force downcast?

我们有错误抱怨UITableViewCell不能转换为MyTableViewCell.

所以编译器建议做一个强制转换:

let cell = tableView.dequeueReusableCell(
    withIdentifier: "MyCell",
    for: indexPath
) as! MyTableViewCell  // ?!?!?!

然而,这感觉很难看.

在处理时没有其他强制施法的选择tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath)吗？这真的是在Swift中实现这一目标的最惯用的方式吗？

谢谢!

我在Jenkinsfile中有以下高级脚本化管道：

stage('Generate') {
    node {
        checkout scm
    }

    parallel windows: {
        node('windows') {
            sh 'cmake . -Bbuild.windows -A x64'
        }
    },
    macos: {
        node('apple') {
            sh '/usr/local/bin/cmake . -DPLATFORM="macos" -Bbuild.macos -GXcode'
        }
    },
    ios: {
        node('apple') {
            sh '/usr/local/bin/cmake . -DPLATFORM="ios" -Bbuild.ios -GXcode'
        }
    }
}

请注意node平行的windows / macos / ios节点之前的顶部。这是否意味着checkout scm在继续执行并行步骤之前，将在每个后续的构建节点（Windows / Apple）上调用它？换句话说，上面的脚本是否保证在此构建的任何阶段都将在涉及的每个节点上检出存储库？

非常感谢。

在此代码片段中，我尝试映射[RegisteredMediaAttachment]到[BasicAttachmentInput]，但仅限于那些具有可解析 的项目uploadUrl。

    private func createSecondaryAttachments(
        _ attachments: [RegisteredMediaAttachment]
    ) -> [BasicAttachmentInput] {
        return attachments.compactMap {
            guard let name = URL(string: $0.registration.uploadUrl) else {
                return nil
            }

            return BasicAttachmentInput(
                name: name,
                contentType: $0.attachment.type.mime(),
                sizeBytes: $0.attachment.data.count,
                mediaId: $0.registration.media.id
            )
        }
    }

然而，斯威夫特在网上抱怨return nil说'nil' is not compatible with closure result type 'BasicAttachmentInput'

这让我很惊讶。我希望该函数编译并减少映射结果以仅包含nil从compactMap闭包返回的非值。上面的片段有什么问题？