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POPreload association when called from model's method
 

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    <p>Suppose I have this simple app working :</p> <pre><code># model class Project has_many :numbers def my_numbers numbers end end # controller class ProjectController def index @projects = Project.includes(:numbers) end end </code></pre> <p>Within my first view, no problem. I'm calling the association directly, so all numbers have already been loaded.</p> <pre><code>@projects.each do |project| project.numbers # no probleme here. Hit the cache of included numbers. end </code></pre> <p>And here is the log</p> <pre><code>Project Load (0.8ms) SELECT "projects".* FROM "projects" ProjectNumber Load (0.5ms) SELECT "project_numbers".* FROM "project_numbers" WHERE "project_numbers"."project_id" IN (1,2) </code></pre> <p>But with this second example, calling numbers from within a method call in Project, each call to my_numbers triggers a new db call, as you can see below:</p> <pre><code>@projects.each do |project| project.my_numbers end </code></pre> <p>And here is the log</p> <pre><code>Project Load (0.8ms) SELECT "projects".* FROM "projects" ProjectNumber Load (0.5ms) SELECT "project_numbers".* FROM "project_numbers" WHERE "project_numbers"."project_id" IN (1,2) ProjectNumber Load (0.5ms) SELECT "project_numbers".* FROM "project_numbers" WHERE "project_numbers"."project_id" = 1 ProjectNumber Load (0.5ms) SELECT "project_numbers".* FROM "project_numbers" WHERE "project_numbers"."project_id" = 2 </code></pre> <p>Is there anyway to avoid that? Why does my model not reusing the included numbers from the first db request?</p> <p>Thanks in advance!</p>
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    1. USchristianblais
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