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Give all the permissions to a user on a DB

...-- use instead of EXECUTE to see generated commands EXECUTE ( SELECT string_agg(format('GRANT USAGE ON SCHEMA %I TO my_user', nspname), '; ') FROM pg_namespace WHERE nspname <> 'information_schema' -- exclude information schema and ... AND nspname NOT LIKE 'pg\_%' -...
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Rails Root directory path?

... 3 and newer: Rails.root which returns a Pathname object. If you want a string you have to add .to_s. If you want another path in your Rails app, you can use join like this: Rails.root.join('app', 'assets', 'images', 'logo.png') In Rails 2 you can use the RAILS_ROOT constant, which is a string...
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What is the most efficient way to store tags in a database?

...ome the many-to-many obstacle. Something like: Table: Items Columns: Item_ID, Item_Title, Content Table: Tags Columns: Tag_ID, Tag_Title Table: Items_Tags Columns: Item_ID, Tag_ID It might be that your web app is very very popular and need de-normalizing down the road, but it's pointless muddy...
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How to detect if a stored procedure already exists

... After that, you can ALTER the stored procedure to your liking. IF object_id('YourSp') IS NULL EXEC ('create procedure dbo.YourSp as select 1') GO ALTER PROCEDURE dbo.YourSp AS ... This way, security settings, comments and other meta deta will survive the deployment. ...
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Remove array element based on object property

... if the array is a tree structure ar beforeDeleteOperationArray=[ { "id": 3.1, "name": "test 3.1", "activityDetails": [ { "id": 22, "name": "test 3.1" }, { "id": 23, "name": "changed test 23" } ] } ] and I want to delete id...
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Cast an instance of a class to a @protocol in Objective-C

...c is a UIViewController object that conforms to MyProtocol", whereas using id <MyProtocol> translates to "vc is an object of an unknown class that conforms to MyProtocol". This way the compiler will give you proper type checking on vc - the compiler will only give you a warning if any method ...
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What are all the different ways to create an object in Java?

...you could describe class loading as creating new objects (such as interned Strings). A literal array as part of the initialisation in a declaration (no constructor for arrays). The array in a "varargs" (...) method call (no constructor for arrays). Non-compile time constant string concatenation (hap...
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How can you list the matches of Vim's search?

..." highlight matches, in normal mode try typing * or even g* when cursor on string set hlsearch " yank those cheat commands, in normal mode type q: than p to paste in the opened cmdline " how-to search for a string recursively " :grep! "\<doLogErrorMsg\>" . -r " " how-t...
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What is the syntax for an inner join in LINQ to SQL?

... DealerContact join dealer in Dealer on contact.DealerId equals dealer.ID select contact; Since you are looking for the contacts, not the dealers. share | ...
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How to render a DateTime object in a Twig template

...te totally different, like extending the \DateTime class, and adding a __toString() method to it that checks the locale and acts accordingly. Edit: As pointed out by @Nic in a comment, if you use the Intl extension of Twig, you will have a localizeddate filter available, which shows the date in th...