ruby on rails 3 - Active record query relationship -

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i have models called project, gold_task , submissions.

relationship goes this:

project has_many gold_tasks

gold_tasks has_many submissions

how can submissions of gold_task through project id.

i tried in below way

p.gold_tasks.joins(:submissions)

here i'm getting gold_tasks need submissions.

thanks in advance.

i believe question right here "how can submissions of gold_task through project id?"

if have set rails associations correctly, should able this:

@project = project.find(1) @gold_tasks = @project.gold_tasks

rails automatically rows in gold_tasks table rows project id of 1 , return array of finds. furthermore, building objects easy well. let's assume have project row again:

@project = project.find(1) @gold_task = @project.gold_task.build(hash)

this build new gold_task parameter hash , assign @project id it.

check out guide: http://guides.rubyonrails.org/association_basics.html


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