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Hi, I'm interested in learning more about this library and profunctor optics in general so was hoping to read the docs but the "Getting Started" link on the site leads to this 404 page: https://sagifo…
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I have been looking into alternative database libraries to use, as I've solely been using persistent/esqueleto for a while now. I like a lot of the Opaleye design but I have to say that the `a b c d e…
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With the c480f69 version of cabal-install:
```
$ cabal install distributive-0.5.3 --flags="semigroups tagged"
Resolving dependencies...
Configuring distributive-0.5.3...
Failed to install distrib…
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## Idea and motivation
I find myself wanting the following instance of `HasField`, without exaggeration, almost every day:
```haskell
instance (Functor f, HasField str r a) => HasField str (f r) …
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In Monocle 1.x and 2.x, we implemented `Traversal` using the Van Laarhoven encoding, meaning all functions within `Traversal` are defined in terms of `modifyF`:
```scala
trait Traversal[A, B] {
…
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Using current cabal at c2dfc3310b71193a491424dddb8c4ab868c55b6e built with GHC 8.0.2,
configuring for use with GHC ghc-8.2 branch at b3f7e9b54d9f36938effd265c84d5567b34c905b, with a brand new insta…
alanz updated
2 years ago
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Requested by @williamyaoh. I'll have to refamiliarise myself with it.
https://haskell-webapps.readthedocs.io/en/latest/docs/opaleye/opaleye.html
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I'm trying to return some data from my database representing a one-to-many relation, and am trying to do it in a single query, but don't see how to accomplish it. There is `arrayAgg :: Aggregator (Fie…
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This is with Haskell Platform 2014.2.0.0, ghc 7.8.3, cabal 1.20.0.3, Windows Server 2008 R2.
## The working setup
As of 0f5367cd57
network-2.4.2.3 is preinstalled.
But without trifecta >=1.5.1.2 or…
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### General summary/comments (optional)
When setting-up a stack project with Nix and `nix.path` refering to file with a relative path in `stack.yaml`, building from anywhere but the root of the pro…