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python - Dealing with duplicate primary keys on insert in SQLAlchemy (declarative style)

My application is using a scoped session and the declarative style of SQLALchemy. It's a web-app and a ... -with-duplicate-primary-keys-on-insert-in-sqlalchemy-declarative-style...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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166 views

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c++ - Efficiency of the STL priority_queue

I have an application (C++) that I think would be well served by an STL priority_queue. The ... /stackoverflow.com/questions/2974470/efficiency-of-the-stl-priority-queue...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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281 views

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haskell - Using the Maybe Monad in "reverse"

Let's say I have a number of functions: f :: a -> Maybe a g :: a -> Maybe a h :: a - ... question from:https://stackoverflow.com/questions/5606228/using-the-maybe-monad-in-reverse...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Is 0 a valid OpenGL texture ID?

(This question already has answers here): question from:https://stackoverflow.com/questions/1108589/is-0-a-valid-opengl-texture-id...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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162 views

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Vim: Showing an error message from a Vim Script

I am trying to show an error message in a Vim script: function! Foo() " ... endfunction au BufWritePost *. ... com/questions/2312813/vim-showing-an-error-message-from-a-vim-script...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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file - Is it possible to read categorical columns with pandas' read_csv?

I have tried passing the dtype parameter with read_csv as dtype={n: pandas.Categorical} but this does not work ... is-it-possible-to-read-categorical-columns-with-pandas-read-csv...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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239 views

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What is the reason JavaScript setTimeout is so inaccurate?

I got this code over here: var date = new Date(); setTimeout(function(e) { var currentDate = new ... /questions/21097421/what-is-the-reason-javascript-settimeout-is-so-inaccurate...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Entity Framework 4.1 DbContext Override SaveChanges to Audit Property Change

I am trying to implement a constrained 'audit log' of property changes to a properties in a set of ... -framework-4-1-dbcontext-override-savechanges-to-audit-property-change...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql - Difference between timezones America/Los_Angeles and US/Pacific and PST8PDT?

I need to convert a bunch of dates in a MySQL database from Pacific time (America/Los_Angeles) to UTC. ... -between-timezones-america-los-angeles-and-us-pacific-and-pst8pdt...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How do I erase elements from STL containers?

How do I erase elements from STL containers, having a specified value, or satisfying some condition? Is there a ... /questions/16013545/how-do-i-erase-elements-from-stl-containers...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Mysql count performance on very big tables

I have a table with more than 100 millions rows in Innodb. I have to know if there is more than ... stackoverflow.com/questions/10976328/mysql-count-performance-on-very-big-tables...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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git - Delete a remote branch with the same name as tag

I have a branch and a tag by the name 3.0.0. Now how do i only delete the branch not the tag. I tried ... .com/questions/32927154/delete-a-remote-branch-with-the-same-name-as-tag...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - iOS9 - This application is modifying the autolayout engine from a background thread -- where?

For searching, the error message is: This application is modifying the autolayout engine from a background thread, ... -is-modifying-the-autolayout-engine-from-a-background-thr...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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271 views

1 answer

git - Github commit message links

Is it possible to create a commit message with link to other repository commit? Eg. something like [ ... https://stackoverflow.com/questions/3832227/github-commit-message-links...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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108 views

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android - Multiple Apps use same content provider

I am developing a set of apps that are distinguished only in certain brandings (think different sports teams) ... .com/questions/3306639/multiple-apps-use-same-content-provider...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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559 views

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tensorflow - tf.data with multiple inputs / outputs in Keras

For the application, such as pair text similarity, the input data is similar to: pair_1, pair_2. In these ... com/questions/52582275/tf-data-with-multiple-inputs-outputs-in-keras...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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164 views

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android - Best practice for displaying error messages

What is the best way of displaying error messages to the user? Assume the following scenario (just for ... .com/questions/14400298/best-practice-for-displaying-error-messages...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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96 views

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android - ALLOW button not working after update

On the devices which have installed the latest update of Android Marshmallow - that is June2016 update, when ... .com/questions/37829165/allow-button-not-working-after-update...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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671 views

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casting Arrays.asList causing exception: java.util.Arrays$ArrayList cannot be cast to java.util.ArrayList

I'm new to Java and am trying to understand why the first code snippet doesn't cause this exception but ... -arrays-aslist-causing-exception-java-util-arraysarraylist-cannot-be-ca...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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305 views

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android - Inter-fragment communication applied to Nested Fragments?

The Android developers site has a great article on how to use interfaces to communicate between: A ... /questions/14831690/inter-fragment-communication-applied-to-nested-fragments...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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334 views

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nomenclature - What is the relation between GTK, GTK+ and GTK2?

I'm confused by the GTK terminology. According to Wikipedia, there seem to be bindings to GTK+ that are called ... /questions/5830731/what-is-the-relation-between-gtk-gtk-and-gtk2...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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590 views

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c++ - Reference to non-static member function must be called

I'm using C++ (not C++11). I need to make a pointer to a function inside a class. I try ... .com/questions/26331628/reference-to-non-static-member-function-must-be-called...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Java/Tomcat standalone, how to log/access all the HTTP GET requests

I'm running Tomcat in standalone mode. The "standalone" part is very important: I am not going to install Apache ... -tomcat-standalone-how-to-log-access-all-the-http-get-requests...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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215 views

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Call methods from Swift initializer

Let's say I have the following class in Swift (which has obvious problems) class MyClass { let ... //stackoverflow.com/questions/24119026/call-methods-from-swift-initializer...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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212 views

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What is the default culture for C# 6 string interpolation?

In C# 6 what is the default culture for the new string interpolation? I've seen conflicting reports of both ... what-is-the-default-culture-for-c-sharp-6-string-interpolation...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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301 views

1 answer

Cancellable threading.Timer in Python

I am trying to write a method that counts down to a given time and unless a restart command is ... ://stackoverflow.com/questions/9812344/cancellable-threading-timer-in-python...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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372 views

1 answer

rest - "404 Resource Not Found" From Azure Blob Storage Document from PUT

I'm attempting to do a PUT request to create a new BLOB. After some initial trouble with Authorization header, ... 404-resource-not-found-from-azure-blob-storage-document-from-put...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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385 views

1 answer

javascript - How can I show data using a modal when clicking a table row (using bootstrap)?

I'm sort of a beginner on the whole web development thing and after researching a lot I still couldn't get this ... -data-using-a-modal-when-clicking-a-table-row-using-bootstrap...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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