idb | IndexedDB, but with promises | Reactive Programming library
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kandi X-RAY | idb Summary
IndexedDB, but with promises
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Lines of Code : 163
License : No License
Copy // 载入数据配置，数据库开启成功后会拿到db来对数据库进行操作
import Idb from 'idb-js' // 引入Idb
import db_student_config from './db_student_config' // 引入数据库配置
Idb(db_student_config).then(student_db => { // 载入配置，数据库开启成功后返回该数据库实例
/**
import {Connector} from './dist/es2015/connection/connector.js';
const settings = {
name : 'nameOfDatabase',
version : 1, //version of database
migrations : [{
name : 'users', //name of table
primary : 'id', //auto incre import Idb from 'idb-js' // 引入Idb
import db_student_config from './db_student_config'
Idb(db_student_config).then(student_db => {...})
create table TableA (
ID int not null,
Firstname nvarchar(255) not null);
create table TableB (
ID int not null,
Lastname nvarchar(255) not null);
create table TableAB(
IDA int not null,
IDB int not null);
GO
(async () => {
// in ServiceWorker while disconnected
const request = buildRequest();
// extract the FormData
const fd = await request.formData();
const serialized = {
url: request.url,
method: request.method,
mode create table TABLE_A(idA int, yearA int);
insert into TABLE_A values( 1 , 2010 );
insert into TABLE_A values( 2 , 2011 );
insert into TABLE_A values( 3 , 2012 );
insert into TABLE_A values( 4 , 201SELECT tb1.idF
, tb1.[name]
, SUM(tb1.Give) AS TG
FROM tblGive tb1
GROUP BY tb1.idF
, tb1.[name]
SELECT tb2.IDB
, tb2.[name]
, SUM(tb2.Have) AS TH
FROM tblHave tb2
GROUP BY tb2.IDB
CREATE TABLE A (
idA INT PRIMARY KEY,
idB INT
);
CREATE TABLE B (
idB INT PRIMARY KEY,
idA INT FOREIGN KEY REFERENCES A(idA)
);
ALTER TABLE A
ADD CONSTRAINT FK_A_B FOREIGN KEY (idB) REFERENCES B(idB);
Data
- idA FK
- idB FK
- idC FK
export const IDBContext = React.createContext({
readFromIDB: null,
setReadFromIDB: () => {}
});
export const IDBContextProvider = ({ children }) => {
const [readFromIDB, setReadFromIDB] = useState(0);
return (
{chCommunity Discussions
Trending Discussions on idb
QUESTION
In a Chrome Extension, I have no problem adding, updating, and removing data to/from an IndexedDB database accessed by my service worker with Chrome Runtime Messaging sent from my content script. My trouble is doing a full table read from my content script. I do a console.log() to dump out the property before I send it back in my sendResponse in the Chrome Runtime Messaging, and I see the data there properly, but the content script receives an undefined. I assume this is because of the asynchronous nature of getting the data. I tried promises and async/await and the combination thereof and I just can't seem to get anything except an undefined in my content script on the message back from the service worker. I also ran sending a test array back and that worked just fine -- but receiving the IndexedDB table data does not work in the message passing. I also tried to JSONify the data and that didn't help either. What's the catch?
service-worker.js
...ANSWER
Answered 2022-Apr-16 at 17:32Chrome extensions API, unlike Firefox WebExtensions, can't handle Promise returned from a callback or provided in sendResponse, https://crbug.com/1185241.
There's also a bug in your readTable: you need to add return before new Promise((resolve)
The solution is two-fold:
- Use
return truefrom the callback to allow asynchronous sendResponse - Call
sendReponseinside.thenof a Promise chain.
QUESTION
I have JSON like below:
...ANSWER
Answered 2022-Apr-15 at 08:48The error says responseBody is not defined and the error is from prerequest script
responseBody is a global object that contains the response , this variable is available only in test script , and as pre-request is executed before the request is even send, requestBody variable wont be accessible
QUESTION
A table1 contains a list of ids. The goal is to check if inside a table3 (for each id from the table1) there is a row which contains this id. If not, I would like to insert a new row which contains a list of values.
I've tried to do it with this block:
...ANSWER
Answered 2022-Mar-31 at 21:29MERGE is working as RIGHT JOIN. In your case join condition is always fulfilled so NOT MATCHED action is never performed.
QUESTION
ANSWER
Answered 2022-Mar-30 at 17:19If you implement equals in B, this could be one of the solution.
QUESTION
I am developing a RN app in Expo with firebase as backend. So far, the app only uses firebase auth and firestore and for whatever reason, I randomly started getting the error of ReferenceError: Can't find variable: IDBIndex. I adjusted my firebase config to suit the v9 standards instead of using the compat package. I ensured my app was not using Google Analytics. I have also downgraded to firebase@9.1.0 which matches up with the expo documentation and this other similar post.
I have also git reverted into previous versions of the app (with earlier dependencies and code) when it was working but still got back the same error. When this occurred, I entirely reinstalled node and npm because I thought that was the only other possible reason this could be happening but that was to no avail as well (getting the same IDB error). I still think this is a firebase related issue, but I am pretty much all out of ideas as to what it could be.
Here is my firebase config:
...ANSWER
Answered 2022-Mar-07 at 22:22I've been getting the same issue, I've tried all the same things as you to no avail. I symbolicated the logs from firebase test lab and came up with this:
Generally I have no idea how all of these libraries work together, but are you using typesense with firestore? I wonder if your stack trace calls out the same files, but I can't find any smoking gun here. I'll keep updating this thread if I find something. (I would have commented but I don't have the rep yet)
Update: Looks like my build just fixed itself somehow, even submitting builds from this weekend that would constantly crash. So truly I'm not sure what happened but it may be resolved
QUESTION
Question :
Do I need to remove generic on my interface IAbstractUserService ?
Is it related to this answer with type erasure ? https://stackoverflow.com/a/31266152/6698175
Problem :
I'm getting this exception :
org.hibernate.WrongClassException: Object [id=1] was not of the specified subclass [com.faz.idb.models.Adviser] : loaded object was of wrong class class com.faz.idb.models.Customer
when trying to load entity with :
...ANSWER
Answered 2022-Mar-19 at 11:11Problem solved.
I was using @MapsId without @JoinColumn(name="id") in the child entity of @OneToOne relation.
Explanation:
"AbstracUser" is extended by a "Customer" entity and he has @OneToOne relation with "PersonDetails".
So in Customer I had :
QUESTION
I have an IDB with the following structure :
...ANSWER
Answered 2022-Mar-10 at 20:35IndexedDB won't help you with that, you'll have to handle it in your application code. Auto incrementing keys in IndexedDB are only for the primary key of the object.
QUESTION
I have plugin in JMeter, which throws java.lang.NoSuchMethodError: org.openqa.selenium.chrome.ChromeOptions.setBinary when I want to run plugin. Im pretty sure, that ChromeOptions.set binary method is on my classpath, maybe some library discrepancy. My build.xml :
...ANSWER
Answered 2022-Mar-01 at 05:55Your "plugin" depends on selenium-java 3.5.3, you need to make sure that exactly this library is present in the Classpath of the JMeter where you're running this plugin.
In case of inconsistencies between your plugin compiled code and the API available in JMeter Classpath you will get the errors like you've reported.
So either build everything into an "uber jar" including your plugin code and dependencies or make sure to supply the exact dependencies to your JMeter installation.
By the way, are you aware of JMeter WebDriver Sampler plugin?
QUESTION
I have a DataFrame like this:
...ANSWER
Answered 2022-Feb-26 at 23:11IIUC, you could use groupby + ngroup:
QUESTION
I have wicket aplication, and I want to set one select value. Problem is that chrome driver returns error with RESPONSE FindElement ERROR
...ANSWER
Answered 2022-Feb-25 at 13:16Try adding a wait there to make elements loaded before accessing them.
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