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Cookie overflow in rails application?

... You've got a 4kb limit on what you can store in a cookie, and when Rails converts your object into text for writing to the cookie its probably bigger than that limit. Ruby on Rails ActionDispatch::Cookies::CookieOverflow error That way this Co...
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Spring @Transactional - isolation, propagation

... Isolation Defines the data contract between transactions. Read Uncommitted: Allows dirty reads. Read Committed: Does not allow dirty reads. Repeatable Read: If a row is read twice in the same transaction, the result will always be the same. Serializable: Performs all transactions in a sequence...
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Is it possible to implement dynamic getters/setters in JavaScript?

...data property. In the normal case this is the proxy or something that inherits from it, but it can be anything since the trap may be triggered by Reflect.get. This lets you create an object with the catch-all getter and setter feature you want: "use strict"; if (typeof Proxy == "undefined") ...
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Best way to concatenate List of String objects? [duplicate]

...s documented in the Java API and very unlikely to change, there's a chance it could. It's far more reliable to implement this yourself (loops, StringBuilders, recursion whatever you like better). Sure this approach may seem "neater" or more "too sweet" or "money" but it is, in my opinion, a worse a...
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Indenting code in Sublime text 2?

... You can find it in Edit → Line → Reindent, but it does not have a shortcut by default. You can add a shortcut by going to the menu Preferences → Keybindings → User, then add there: { "keys": ["f12"], "command": "reindent", "args"...
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Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (38)

...r file my.cnf (usually in the /etc/mysql/ folder) is correctly configured with socket=/var/lib/mysql/mysql.sock you can check if mysql is running with the following command: mysqladmin -u root -p status try changing your permission to mysql folder. If you are working locally, you can try: sud...
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Responsive css background images

I have a website (g-floors.eu) and I want to make the background (in css I have defined a bg-image for the content) also responsive. Unfortunately I really don't have any idea on how to do this except for one thing that I can think of but it's quite a workaround. Creating multiple images and then us...
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How do I test a file upload in rails?

... Searched for this question and could not find it, or its answer on Stack Overflow, but found it elsewhere, so I'm asking to make it available on SO. The rails framework has a function fixture_file_upload (Rails 2 Rails 3, Rails 5), which will search your fixtures direct...
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Using python map and other functional tools

This is quite n00bish, but I'm trying to learn/understand functional programming in python. The following code: 9 Answers ...
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What is a patch in git version control?

I am new to both git and version control so I am trying to figure out what a patch is and how is it different from the rest of activities I do in git? ...