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sgrif's profile
Miss Dada 🏳️‍⚧️
Miss Dada 🏳️‍⚧️
Miss Dada  🏳️‍⚧️
@sgrif

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Miss Dada  🏳️‍⚧️

@sgrif

Co lead of the http://crates.io  team. Creator of @dieselframework. Former host of @_bikeshed and @_yakshave. Former Rails comitter. Enby. they/them

Albuquerque, NM
patreon.com/seantheprogram…
Joined November 2008

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    1. Gary Bernhardt‏ @garybernhardt 26 Jun 2018
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      I want to run multiple test processes against one database. Each process needs to see the database as if it were the only process. Nested transactions (putting the whole test in a transaction) would do it, but Postgres can't do that. Is there another way?

      23 replies 0 retweets 13 likes
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    2. Gary Bernhardt‏ @garybernhardt 26 Jun 2018
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      I don't think transactions help at all. The app under test will use transactions. You can't nest transactions in Postgres, so wrapping the whole test run in a transaction would preclude the app's normal use of them.

      3 replies 0 retweets 4 likes
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    3. Miss Dada  🏳️‍⚧️‏ @sgrif 26 Jun 2018
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      Replying to @garybernhardt

      You can emulate nested transactions with savepoints.

      1 reply 0 retweets 1 like
    4. Gary Bernhardt‏ @garybernhardt 26 Jun 2018
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      Replying to @sgrif

      Yeah, but the app already does transactions in the usual way, so I don't think I can do that without modifying the app?

      1 reply 0 retweets 0 likes
    5. Miss Dada  🏳️‍⚧️‏ @sgrif 26 Jun 2018
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      Replying to @garybernhardt

      How is the app executing its queries? Are you just using raw SQL? No abstraction layer that can help? (e.g. something like https://github.com/diesel-rs/diesel/blob/master/diesel/src/connection/transaction_manager.rs#L86-L126 …)

      1 reply 0 retweets 0 likes
    6. Gary Bernhardt‏ @garybernhardt 26 Jun 2018
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      Replying to @sgrif

      AR

      1 reply 0 retweets 0 likes
      Miss Dada  🏳️‍⚧️‏ @sgrif 26 Jun 2018
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      Replying to @garybernhardt

      AR should already do nested transaction emulation as long as you do requires_new: true

      1:55 PM - 26 Jun 2018 from Albuquerque, NM
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        1. Miss Dada  🏳️‍⚧️‏ @sgrif 26 Jun 2018
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          Replying to @sgrif @garybernhardt

          See the nested transaction section http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/DatabaseStatements.html#method-i-transaction …

          0 replies 0 retweets 0 likes
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