I hope this does not feel like a plug:
https://github.com/metaskills/named_seeds
There is a talk I have around this gem/concept I have been using for several
years. The general idea is:
* Factories generate Valid Garbage™ which is 100% random.
* Test fixtures take advantage of said factories but are explicit in their IDs
and properties.
This idea is to have a minimal fixture set (not driven by YAML) allowing ad-hoc
tests to create valid garbage as needed for testing purposes. NamedSeeds even
allows these fixture personas to populate your development DB.
I realize this is slightly tangential to the way you are doing things, but I
wanted to share. Either way I kind of believe that Rails is doing it right now
and solutions like these are best done in gems and projects like ours. Hope it
is helpful.
- Cheers,
Ken
On February 18, 2016 at 3:28:19 AM, Ben Colon (ben.co...@gmail.com) wrote:
A consistent database ... but with some random fields ;)
I guess, it's simpler to run a seed with
10000.times { User.create! :first_name => Faker::Name.first_name }
than loading an hardcoded file with 10000 users.
Ben
Le mercredi 17 février 2016 20:21:30 UTC+1, Derek Prior a écrit :
Interesting idea. If what you're after is consistent data, why are you
randomizing anything?
On Wed, Feb 17, 2016 at 9:48 AM, Ben Colon <ben....@gmail.com> wrote:
Hey there,
In many projects, I guess like everyone, we're using the seed file to generate
a bunch of models with random data.
Obviously, after running db:seed task, each developer has a "different"
database. Not cool.
If we need to sync those data, we prefix seed.rb code with something like
```
generator = Rand.new(1234567890)
```
and replace all "rand" calls by "generator.rand"
As we do that in many projects, I could write a gem which would override the
Railties `load_seed` method and insert a fixed `srand` call before seed.rb
load, so all `rand` calls during seed will be "predictable".
But is it make sense to make a Railties pull request with this (with a config
options to enable/disable "predictable" seed) ?
Something like :
```
def load_seed
srand(config.predictable_seed) if config.predictable_seed
seed_file = paths["db/seeds.rb"].existent.first
load(seed_file) if seed_file
ensure
srand if config.predictable_seed
end
```
Thoughts ?
Thank you
Ben
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