gen | Converts a database into gorm structs and RESTful api
kandi X-RAY | gen Summary
kandi X-RAY | gen Summary
The gen tool produces a CRUD (Create, read, update and delete) REST api project template from a given database. The gen tool will connect to the db connection string analyze the database and generate the code based on the flags provided. By reading details from the database about the column structure, gen generates a go compatible struct type with the required column names, data types, and annotations. It supports gorm tags and implements some usable methods. Generated data types include support for nullable columns sql.NullX types or guregu null.X types and the expected basic built in go types. gen is based / inspired by the work of Seth Shelnutt's db2struct, and Db2Struct is based/inspired by the work of ChimeraCoder's gojson package gojson.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of gen
gen Key Features
gen Examples and Code Snippets
function genStrings(curArr, index, len, digits, map) {
var length = curArr.length,
next = [],
temp,
i,
j;
if (index === len) {
return curArr;
}
for (i = 0; i < length; i++) {
function genPath(result, root, curArr, curSum, target) {
curArr.push(root.val);
curSum += root.val;
if ((curSum === target) && !root.left && !root.right) {
result.push(curArr);
return;
}
i
function genPartition(s, result, index, curArr, isPal) {
if (index === s.length) {
result.push(curArr);
return;
}
var len = s.length,
j;
for (j = index; j < len; j++) {
if (isPal[index]
Community Discussions
Trending Discussions on gen
QUESTION
It seems that JDK 8 and JDK 13 have different floating points.
I get on JDK 8, using Math:
ANSWER
Answered 2022-Mar-20 at 18:16This seems to be caused by a JVM intrinsic function for Math.cos
, which is described in the related issue JDK-8242461. The behavior experienced there is not considered an issue:
The returned results reported in this bug are indeed adjacent floating-point values [this is the case here as well]
[...]
Therefore, while it is possible one or the other of the returned values is outside of the accuracy bounds, just have different return values for Math.cos is not in and of itself evidence of a problem.
For reproducible results, use the StrictMath.cos instead.
And indeed, disabling the intrinsics using -XX:+UnlockDiagnosticVMOptions -XX:DisableIntrinsic=_dcos
(as proposed in the linked issue), causes Math.cos
to have the same (expected) result as StrictMath.cos
.
So it appears the behavior you are seeing here is most likely compliant with the Math
documentation as well.
QUESTION
It has been almost a year since I saw Jonathan Worthington presenting the new RakuAST in the YouTube video A Raku API to Raku programs the journey so far from TRC 2021. In the video, he showed that we could dump this new RakuAST using RAKUDO_RAKUAST=1
like this:
ANSWER
Answered 2022-Mar-08 at 11:46You need to checkout and build the rakuast
branch of Rakudo. The RakuAST work is still very much in progress, and has not landed in the main branch let.
QUESTION
I am working on certain stock-related projects where I have had a task to scrape all data on a daily basis for the last 5 years. i.e from 2016 to date. I particularly thought of using selenium because I can use crawler and bot to scrape the data based on the date. So I used the use of button click with selenium and now I want the same data that is displayed by the selenium browser to be fed by scrappy. This is the website I am working on right now. I have written the following code inside scrappy spider.
...ANSWER
Answered 2022-Jan-14 at 09:30The 2 solutions are not very different. Solution #2 fits better to your question, but choose whatever you prefer.
Solution 1 - create a response with the html's body from the driver and scraping it right away (you can also pass it as an argument to a function):
QUESTION
In the dataframe below:
...ANSWER
Answered 2021-Dec-25 at 08:46Just use the df.apply
method to average across each column based on series
and AIC_TRX
grouping.
QUESTION
I am gradually rewriting an application with React to TypeScript into ReScript.
I've already implemented few components in ReScript, but this is the first one, where I use ReactDOM.Style.t
as property to my component.
Here is my minimized component code:
...ANSWER
Answered 2021-Dec-21 at 15:33This is because rescript bindings to react do not come with GenType, so in case you want it, you have to type it yourself (cf the docs to import types):
QUESTION
Today I did some tests on the nightly module std::lazy
. It works well in local variable. However, when I defined a const
variable, it gave me two different values. Seems the Colsure is called multiple times.
ANSWER
Answered 2021-Dec-15 at 09:27This is my code, can anyone tell me why?
Because you're confusing const
and static
.
Per the official documentation:
A constant item is an optionally named constant value which is not associated with a specific memory location in the program. Constants are essentially inlined wherever they are used, meaning that they are copied directly into the relevant context when used. This includes usage of constants from external crates, and non-
Copy
types. References to the same constant are not necessarily guaranteed to refer to the same memory address.
(note that the phrasing of the last sentence indicates consts could be promoted to statics and share a memory address, but there's no guarantee there, and while statics can be inlined it probably should not be observable through safe rust so should mostly be irrelevant).
In essence, your snippet is semantically equivalent to:
QUESTION
What is the preferred way to make a VS connected service (NSwag) injected into classes/controllers. I have found a lot of suggestions on the net to use this form:
...ANSWER
Answered 2021-Sep-26 at 13:24Ok, I actually solved this problem by poking around through OpenApiReference
, but it requires manual modification of csproj file. Additional Options
node has to be added to OpenApiReference
item group, to instruct NSwag to NOT expose BaseUrl and to also generate an interface, which eases the work with setting up DI without additional code.
Visual Studio team should really add these two checkboxes to Connected Services screens/configuration for OpenAPI.
QUESTION
I'm using a program coded in Haskell to which I passed +RTS -N3 -M9G -s -RTS
in order to obtain runtime statistics at the end of the execution. I've occasionally had a result where the productivity is negative. Also, the program ran its task successfully but MUT is zero.
- How come productivity is negative?
- How is it possible for MUT to be zero if the program is completed successfully?
ANSWER
Answered 2021-Nov-19 at 18:31There appears to be something very wrong with the calculated GC CPU time. It's 41010 secs compared to 2737 sec elapsed, which doesn't make sense if you're only running on three capabilities.
This miscalculation means that the calculated MUT CPU time, which is just total CPU time minus INIT, GC, and EXIT time, is actually a large negative number (5073-41010-2 = -35939). This gives a productivity of -35939/5073=-708%. When the MUT seconds are displayed, negative numbers are truncated at zero, to avoid reporting small negative numbers when MUT is very low and there's a clock precision error, which is why the displayed MUT time is 0 instead of -35939.
I don't know why the GC time is so badly miscalculated. My best guess is this. If you're running on Windows, there are known issues with CPU time clock precision, and it's possible that certain unusual patterns of garbage collection timing might result in precision errors occuring in only one direction, slightly overestimating the actual GC time more often than it underestimates it. Over 2.4 million collections (see your GC stats), this difference could accumulate to a huge positive error.
I looked through GitLab issues, and except for the report on general Windows CPU time imprecision and a couple of probably unrelated negative MUT reports here and here, I didn't see anything helpful.
QUESTION
I'm going thru Get Programming with Haskell
, and try to extend some examples. Having a problem for a function to get the maxBound
of Enum:
ANSWER
Answered 2021-Nov-14 at 18:09You can work with the ScopedTypeVariables
and TypeApplications
extensions. In that case we define rotGen
as:
QUESTION
I have a complex nested dictionary structured like this:
...ANSWER
Answered 2021-Nov-05 at 09:13I was able to get about 25 % faster by combining the three processes.
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