hood | Database agnostic ORM for Go | Object-Relational Mapping library
kandi X-RAY | hood Summary
kandi X-RAY | hood Summary
Hood is a database agnostic ORM for Go developed by @eaignr. It was written with following points in mind:. Adding a dialect is simple. Just create a new file named .go and the corresponding struct type, and mixin the Base dialect. Then implement the methods that are specific to the new dialect (for an example see postgres.go).
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of hood
hood Key Features
hood Examples and Code Snippets
def lstm_with_backend_selection(inputs, init_h, init_c, kernel,
recurrent_kernel, bias, mask, time_major,
go_backwards, sequence_lengths,
zero_output_for_
def gru_with_backend_selection(inputs, init_h, kernel, recurrent_kernel, bias,
mask, time_major, go_backwards, sequence_lengths,
zero_output_for_mask):
"""Call the GRU with optimized bac
def experimental_distribute_dataset(self, dataset, options=None):
# pylint: disable=line-too-long
"""Creates `tf.distribute.DistributedDataset` from `tf.data.Dataset`.
The returned `tf.distribute.DistributedDataset` can be iterated over
Community Discussions
Trending Discussions on hood
QUESTION
My dataflow job has both source & sink as synapse database.
I have a source query with joins & transformations in the dataflow while extracting data from the synapse database.
As we know, dataflow under the hood will spin up the databricks cluster to execute the dataflow code.
My question here, the source query I am using in the data flow will that be executed on the synapse db/databricks cluster?
...ANSWER
Answered 2021-Jun-10 at 19:03The data flow requires a compute context, which is Spark. When you use a query in the transformation, that query will get executed from that Spark cluster, which essentially gets pushed down into the database engine for resolution.
QUESTION
I'm trying to delete an attribute from model object that is created on the go, but there seems to be some problem doing so. So, far I've searched through every place including SQLAlchemy documentation and some of its code to find a potential fix but unable to find one.
Below code works fine on python classes but not with a class inherited from declarative_base
ANSWER
Answered 2021-Jun-10 at 14:11So this was expected, as SQLAlchemy ORM mapped objects don't support this particular state for an attribute, that is, attribute doesn't exist and would raise AttributeError. for an ORM mapped class, a mapped attribute always defaults to None and/or empty collection. there's a little bit of an introduction to this here: https://docs.sqlalchemy.org/en/14/tutorial/orm_data_manipulation.html#instances-of-classes-represent-rows
For this particular problem, you can define your column as
QUESTION
AWS Transfer Family supports integration with AD Connector (https://docs.aws.amazon.com/directoryservice/latest/admin-guide/ad_connector_app_compatibility.html). As far as I understand, connectors are deployed in vpn-linked subnets that allows them to proxy calls to an on-premise Active Directory.
What exactly happens (what resources are created/updated under the hood) when I select AD connector as the authenticator for AWS Transfer? I'm specifically curious as to what changes are made in VPC to allow this integration.
...ANSWER
Answered 2021-Jun-09 at 16:39In relation to AWS Directory Service, AWS Transfer does not seem to mutate your VPC. If you create an AD and then associate it with AWS Transfer, and take a look at your VPC, there is no new networking resources of any kind. Similar to other applications (https://docs.aws.amazon.com/directoryservice/latest/admin-guide/ms_ad_manage_apps_services.html), AWS Directory Services authorizes AWS Transfer to access your AD (in this case, connector) for Transfer logins.
QUESTION
When working with text data, I understand the need to encode text labels into some numeric representation (i.e., by using LabelEncoder
, OneHotEncoder
etc.)
However, my question is whether you need to perform this step explicitly when you're using some feature extraction class (i.e. TfidfVectorizer
, CountVectorizer
etc.) or whether these will encode the labels under the hood for you?
If you do need to encode the labels separately yourself, are you able to perform this step in a Pipeline
(such as the one below)
ANSWER
Answered 2021-Jun-08 at 08:55Have a look into the scikit-learn
glossary for the term transform:
In a transformer, transforms the input, usually only X, into some transformed space (conventionally notated as Xt). Output is an array or sparse matrix of length n_samples and with the number of columns fixed after fitting.
In fact, almost all transformers only transform the features. This holds true for TfidfVectorizer
and CountVectorizer
as well. If ever in doubt, you can always check the return type of the transforming function (like the fit_transform
method of CountVectorizer
).
Same goes when you assemble several transformers in a pipeline. It is stated in its user guide:
Transformers are usually combined with classifiers, regressors or other estimators to build a composite estimator. The most common tool is a Pipeline. Pipeline is often used in combination with FeatureUnion which concatenates the output of transformers into a composite feature space. TransformedTargetRegressor deals with transforming the target (i.e. log-transform y). In contrast, Pipelines only transform the observed data (X).
So in conclusion, you typically handle the labels separately and before you fit the estimator/pipeline.
QUESTION
When combining QuerySets, what's the difference between the QuerySet.union()
method and using the OR operator between QuerySets |
?
Consider the following 2 QuerySets:
...ANSWER
Answered 2021-Jun-03 at 16:07From the QuerySet API reference:
The UNION operator selects only distinct values by default. To allow duplicate values, use the all=True argument.
The .union()
method allows some granularity in specifying whether to keep or eliminate duplicate records returned. This choice is not available with the OR operator.
Also, QuerySets created by a .union()
call cannot have .distinct()
called on them.
QUESTION
Consider the following code snippet:
...ANSWER
Answered 2021-Jun-06 at 19:38In Pandas, indexing a DataFrame returns a reference to the initial DataFrame. Thus, changing the subset will change the initial DataFrame. Thus, you'd want to use the copy if you want to make sure the initial DataFrame shouldn't change. Consider the following code:
QUESTION
The iframe with allow="geolocation" works great. But what if I want to load a link which calls getCurrentPosition() from a html anchor tag?
Example : In iframe, I'll use
I have a use case where a html embed link like
is embedded in a parent site. The parent site loads the child link inside it's own iframe
It is to be noted that The parent site's iframe has the allow="geolocation" attribute .
In this case the request is silently denied with error
errorCode :1
errorMessage: "Geolocation has been disabled in this document by permissions policy."
The feature policy document point to iframe but what about anchor tag embeds?
I understand that I can use a iframe instead of anchor tag embed but the parent site only allows anchor tag's.
PS - This is my first question here. Please assist.
Note :
- I also tried a random shot by including allow="geolocation" for anchor tag, but it doesn't work.
- This seems to work on Safari (which I'm assuming is because Safari hasn't yet implemented feature policy for cross origin site requests)
Edit 1 :
I tried my use case in jsfiddle and notice that all scripts i give (iframe or anchor tag) are loaded inside jsfiddle's iframe
If i load my iframe inside this, it works perfectly !(perfectly balanced, as all things should be...)
But if I load my anchor tag inside this, i get the error. As per granty's answer
the jsfiddle's iframe with allow='geolocation' should set jsfiddle site's feature policy that all scripts loaded inside that iframe can access geolocation right ? Why does my iframe inside jsfiddle's iframe work but anchor tag doesnt ?
Note - I have no control over the top level site. I only code the scripts for https://siteWhichCallsGetGeolocation.com
SOLUTION (if you have control over top document's feature policy or control over any intermediate </code> which have geolocation permission)</strong> (derived from granty's answer)</p>
<p>I tried the suggested solution by changing the jsfiddle's iframe attribute via inspect element to</p>
<p><code><iframe name="result" allow="midi; geolocation https://siteWhichCallsGetGeolocation.com ; microphone; camera; display-capture; encrypted-media;" sandbox="allow-modals allow-forms allow-scripts allow-same-origin allow-popups allow-top-navigation-by-user-activation allow-downloads" allowfullscreen="" allowpaymentrequest="" frameborder="0">
To highlight, I added my site next to geolocation in allowlist like
allow="midi; geolocation
https://siteWhichCallsGetGeolocation.com
;
and then loaded my anchor tag.
When the getCurrentPosition() was triggered from script loaded from https://siteWhichCallsGetGeolocation.com
, I got the browser prompt to Allow/Deny location sharing. I allowed and got the coordinates!
Wow! If only it could be as simple as editing the top level document's feature/permissions policy via inspect element.
But alas,I have no control over the top level document's feature policy. At least I understood what's going on under the hood.
...ANSWER
Answered 2021-Jun-04 at 01:33Briefly, you have to publish
QUESTION
In MyBatis documentation I see only example of adding mappers by exact name.
...ANSWER
Answered 2021-Jun-03 at 15:58From that same documentation page - you can register a package and all interfaces in the package will be registered. This is far less verbose than registering mappers individually:
QUESTION
I have 2 models, a company, and an event. I would like to track how the companies team_size and valuation changes at each event, so, I decided to add a company_team_size and a company_valuation field to the events table. Whenever the team is updated, I am trying to check if the team_size or valuation are part of the updates params, and if so, update the most recent event in the events table.
Something like:
...ANSWER
Answered 2021-Jun-03 at 00:42There's an easier way to do this. Use nested attributes.
QUESTION
I'm trying to allow users to filter strings of text using a glob pattern whose only control character is *
. Under the hood, I figured the easiest thing to filter the list strings would be to use Js.Re.test
[https://rescript-lang.org/docs/manual/latest/api/js/re#test_], and it is (easy).
Ignoring the *
on the user filter string for now, what I'm having difficulty with is escaping all the RegEx control characters. Specifically, I don't know how to replace the capture groups within the input text to create a new string.
So far, I've got this, but it's not quite right:
...ANSWER
Answered 2021-Jun-02 at 14:00Let me see if I have this right; you want to implement a character matcher where everything is literal except *. Presumably the * is supposed to work like that in Windows dir commands, matching zero or more characters.
Furthermore, you want to implement it by passing a user-entered character string directly to a Regexp match function after suitably sanitizing it to only deal with the *.
If I have this right, then it sounds like you need to do two things to get the string ready for js.re.test:
- Quote all the special regex characters, and
- Turn all instances of * into .* or maybe .*?
Let's keep this simple and process the string in two steps, each one using Js.re.replace. So the list of special characters in regex are [^$.|?*+(). Suitably quoting these for replace:
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