我使用的仪器输出数据的CSV文件,但是我无法控制列名。我想在导入数据之前更改标题行(无需编辑原始CSV文件),以便可以使用以下代码将其导入数据库:
def self.import(file)
CSV.foreach(file.path, headers: true) do |row|
Foo.create! row.to_hash
end
end
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如何用自己的一个完全替换标题行?
我有2个组件:
Vue.component('repo-button', {
props:["check_in_id", "repo_id"],
template: '#repo-button',
methods: {
fetchRepo: function() {
url = window.location.href.split("#")[0] + "/check_ins/" + this.check_in_id + "/repositionings/" + this.repo_id + ".json"
cl(url)
cl(this)
var that;
that = this;
$.ajax({
url: url,
success: function(data) {
cl(data)
that.showRepo();
}
})
},
showRepo: function() {
// what do I put here to display the modal
}
},
data: function() {
var that = this;
return {
}
}
});
Vue.component('repo-modal', {
template: "#repo-modal",
data: function() {
return {
status: …Run Code Online (Sandbox Code Playgroud) 我有 2 个型号:
class User < ActiveRecord::Base
has_one :client
end
class Client < ActiveRecord::Base
belongs_to :user
end
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我通常创建user第一个,并有一个过滤器,在创建后after_create创建。clientuser
after_create :create_client
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我有一个新的案例,其中存在,并且我想在已经存在的情况下client创建。在这种情况下,当我创建时我想跳过过滤器。 user clientuserafter_create
我知道我需要after_create :create_client, unless: ____,但我不知道如何区分这一点。
我看过其他类似的问题,但仍然很困惑。当我使用 运行我的应用程序时ionic serve,我的控制台告诉我:
ionic-pro.min.js:1 the cordova-plugin-ionic plugin is not installed. Install it for better device information for runtime errors.
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但是当我运行时:
cordova plugin add cordova-plugin-ionic --variable APP_ID=app_id --variable CHANNEL_NAME=Production
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它说:
Plugin "cordova-plugin-ionic" already installed on android.
Plugin "cordova-plugin-ionic" already installed on browser.
Plugin "cordova-plugin-ionic" already installed on ios.
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我有一种感觉,这与我的其他问题之一有关,即 Ionic Pro 的 Deploy 服务未按预期工作。
这是我的环境:
cli packages: (/usr/local/lib/node_modules)
@ionic/cli-utils : 1.14.0
ionic (Ionic CLI) : 3.14.0
global packages:
cordova (Cordova CLI) : 7.0.1
local packages:
@ionic/app-scripts : 2.1.4
Cordova …Run Code Online (Sandbox Code Playgroud) 我有一个简单的模型测试,我正在测试我的验证,出于某种原因,我需要在测试通过之前打印对象。
以下测试失败(失败输出如下所示):
RSpec.describe HealthProfile, type: :model do
let(:client) { create(:client) }
let(:intro_hp) { create(:health_profile, :no_callbacks, :with_issues, client_id: client.id)}
describe "should validate that" do
it "diabetes is required in exit if present in intro" do
exit_hp = build(:health_profile, :end, :no_callbacks, client_id: client.id)
exit_hp.valid?
expect(exit_hp.errors.keys).to include(:diabetic)
end
end
end
Failures:
1) HealthProfile should validate that diabetes is required in exit if present in intro
Failure/Error: expect(exit_hp.errors.keys).to include(:diabetic)
expected [:weight_mindset_one, :weight_mindset_two, :weight_mindset_three] to include :diabetic
Diff:
@@ -1,2 +1,2 @@
-[:diabetic]
+[:weight_mindset_one, :weight_mindset_two, …Run Code Online (Sandbox Code Playgroud) 我是新来的反应,并试图理解为什么我会看到这个错误:
Error: could not find react-redux context value; please ensure the component is wrapped in a <Provider>
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应用程序.js
export default function App() {
const selectedNumber = useSelector(selectChosenNumber) // This line causes the error
function pickedNumberHandler() {
console.log("called")
}
let screen = <StartGameScreen />;
pickedNumberHandler()
store.subscribe(pickedNumberHandler)
return (
<Provider store={store}>
<LinearGradient colors={['#4e0329', '#ddb52f']} style={styles.rootScreen}>
<ImageBackground
source={require('./assets/images/background.png')}
resizeMode="cover"
style={styles.rootScreen}
imageStyle={{opacity: 0.15}}
>
{screen}
</ImageBackground>
</LinearGradient>
</Provider>
);
}
const styles = StyleSheet.create({
rootScreen: {
flex: 1,
}
})
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selectedNumberReducer.ts
export const chosenNumberSlice …Run Code Online (Sandbox Code Playgroud)