jet | Type safe SQL builder with code generation | SQL Database library
kandi X-RAY | jet Summary
kandi X-RAY | jet Summary
Jet is a complete solution for efficient and high performance database access, consisting of type-safe SQL builder with code generation and automatic query result data mapping. Jet currently supports PostgreSQL, MySQL, MariaDB and SQLite. Future releases will add support for additional databases. Jet is the easiest, and the fastest way to write complex type-safe SQL queries as a Go code and map database query result into complex object composition. It is not an ORM.
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Trending Discussions on jet
QUESTION
While working with the matplotlib, when I got to the colormap, I realized that the default colormap is jet colormap, but I heard that this choice is not very good. Can someone tell me the reason or is there a reason that this was chosen by default?
...ANSWER
Answered 2022-Apr-04 at 18:39The current default colormap is 'Viridis'. For an introduction to color theory and how 'viridis' was generated watch Nathaniel Smith and Stéfan van der Walt's talk from SciPy2015. Watch: https://www.youtube.com/watch?v=xAoljeRJ3lU&t=2s
QUESTION
I'm relatively new to coding and entirely self taught, so please have patience with me.
I've been scouring the internet for an answer to this, but everything I've found is either waaaaaaayyy too technical and looks like ancient greek, or doesn't even apply to my situation.
I'm developing an app for work for my managers to record employee information. The page I'm currently working on is for injuries, however this will apply to multiple pages if I can figure it out. I know I'm probably over-complicating something and it's going to be a stupid answer but I've tried everything I can think of so far.
What I'm trying to do is capture handwritten notes as images and then save them to a database for us in the office to type up and translate if needed. (a lot of my managers don't type) but this would apply to collecting multiple signatures as well i.e. on write ups.
I've got the images saved, but when it comes time to write them to the database, the first image will write just fine, but the second one I start getting the "Data type mismatch in the criteria expression" error.
I've tried isolating the 2nd and third images to see if it's a syntax issue, but I still get the error. I've rebuilt the database table to make sure the destination field is an OLE object, same error. I've been searching for a few days now for the answer and I'm not finding it, so if someone can please help.
I know it's going to be something silly like not disposing of something in the right place, but that is beyond my current knowledge. Thank you in advance for any help.
...ANSWER
Answered 2022-Mar-30 at 18:40Some entities use "unmanaged resources" which need to be explicitly taken care of by calling Dispose() on them. There is a way to have that happen automatically for you: the Using statement.
As it happens, both database connections (e.g. OleDbConnection) and the Image type are such entities.
Here is an example of how you could modify your code:
QUESTION
Hello I am trying to plot a chart in Jupyter Notebook. I have been following this tutorial.
I am using the following nuget packages to read a data and then plot it using plotly
So I have this block of code which produces a scatter plot,
...ANSWER
Answered 2021-Sep-21 at 21:31I was able to show the plot using latest XPlot
version and interactive (XPlot.Plotly.Interactive
) package :
QUESTION
I am using below to plot contour, I’d like to set color the white(not shown) if value is outside contour range like below z_min. For my plot, everything below z_min is still same color of blue color as zmin. I saw it is working from the below website example after setting start=, end= inside contour=dict(). Thanks for your help.
...ANSWER
Answered 2022-Jan-19 at 20:21At the moment I can't think of any direct way to make the contour white.
One possible solution could be to replace any values outside of the contour range in your array with np.nan
before passing the array to the parameter z
in go.Contour
.
The NaN values in the array won't render and will appear transparent, meaning the tickmark lines and background can be seen. Then you can set the paper and plot background to be white so that the NaN values appear white.
Here is an example of how that can be accomplished. The larger the dimensions of the array you are plotting, the smoother the contours will be. In this 101 x 101
array, the change from the contour to the white background is not perfect, but pretty smooth.
QUESTION
I used the following codes (related to my question)
...ANSWER
Answered 2022-Jan-03 at 08:59you can change this line:
QUESTION
I tried to cluster my dataset using K-mean, but there is a categorical data in column 9; so when I ran k-mean it had an error like this:
...ANSWER
Answered 2021-Dec-17 at 17:31To solve your specific issue, you can generate dummy variables to run your desired clustering.
One way to do it is using the dummy_columns()
function from the fastDummies
package.
QUESTION
I'm trying to implement the EPIC FHIR SMART Backend Services (Backend OAuth 2.0) on go programming language.
I've created my dev account, uploaded the public key there, and selecting the backend system
as the application audience.
I'm pretty sure my jwt token is correct. I've inspected it on jwt.io, the signature is correct. However, I always get this error:
{ "error": "invalid_client", "error_description": null }
I've tried other possible solutions as well such as:
- ensuring the expiration date within the jet claim is below 5 minutes
- placing the payload in the body with the correct content type, which is
application/x-www-form-urlencoded
- ensuring to use the sandbox
client_id
- using the correct jwt sign in method (
RS384
)
What should I do to resolve this issue?
Btw, I also saw several discussions on the google groups saying that it's worth to wait for one or two days after the dev account is created.
Below is my code. Appreciate the help!
...ANSWER
Answered 2021-Sep-27 at 15:04Fantastic, I got it working now.
The solution is simply waiting! it was confusing because I can't find any explanation about this on the doc, and also the error message isn't user-friendly.
in summary, after the dev app is created, and the public key is uploaded there, we have to wait for a few hours/days, and then the credentials will eventually be usable.
The waiting part is applied to both open epic and app orchard dev accounts.
QUESTION
I was trying to an example of the book -"Dynamical Systems with Applications using Python" and I was asked to plot the phase portrait of Verhulst equation, then I came across this post: How to plot a phase portrait of Verhulst equation with SciPy (or SymPy) and Matplotlib?
I'm getting the same plot as the user on the previous post. Whenever, I try to use the accepted solution I get a "division by zero" error. Why doesn't the accepted solution in How to plot a phase portrait of Verhulst equation with SciPy (or SymPy) and Matplotlib? works?
Thank you very much for you help!
Edit:
Using the code from the previous post and the correction given by @Lutz Lehmann
...ANSWER
Answered 2021-Nov-11 at 18:31With the help of @Lutz Lehmann I could rewrite the code to get want I needed.
The solutions is something like this:
QUESTION
I am using the jetpack navigation component for the navigation of fragments, I created an anim at res directory and added this animation-transition
:
ANSWER
Answered 2021-Sep-30 at 18:24
findNavController().navigate(R.id.reg2Fragment)
Here the version of the navigate(destinationId)
method doesn't involve the animation as the R.id.reg2Fragment
doesn't provide any information more than the destination fragment id.
But in order to include the animation in the navigation, you need to use the navigate() method that accepts a navDirection
argument which is typically the method of the generated Direction class for this particular action.
So, as the id of the action
is action_reg1Fragment2_to_reg2Fragment
:
QUESTION
I would like to create a 3D Streamtube Plot with Plotly.
Here is a cross-section of the vector field in the middle of the plot to give you an idea of how it looks like:
The final vector field should have rotational symmetry.
My Attempt- Download the data here: https://filebin.net/x6ywfuo6v4851v74
- Run the code bellow:
Code:
...ANSWER
Answered 2021-Sep-27 at 18:20I have rewritten my answer to reflect the history of conversation but in a disciplined manner.
The situation is:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install jet
(Go1.16+) Install jet generator using go install: go install github.com/go-jet/jet/v2/cmd/jet@latest
Install jet generator to GOPATH/bin folder: cd $GOPATH/src/ && GO111MODULE=off go get -u github.com/go-jet/jet/cmd/jet
Install jet generator into specific folder: git clone https://github.com/go-jet/jet.git cd jet && go build -o dir_path ./cmd/jet
For this quick start example we will use PostgreSQL sample 'dvd rental' database. Full database dump can be found in ./tests/testdata/init/postgres/dvds.sql. Schema diagram of interest for example can be found here.
connect to postgres database and retrieve information about the tables, views and enums of dvds schema
delete everything in schema destination folder - ./gen/jetdb/dvds,
and finally generate SQL Builder and Model types for each schema table, view and enum.
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