eager-loading

I'm using Devise for authentication in my Rails app. I'd like to eager load some of a users associated models in some of my controllers. Something like this: class TeamsController < ApplicationController def show @team = Team.includes(:members).find params[:id] current_user.includes(:saved_listings) # normal controller stuff end end How can I achieve this? I ran into the same issue and although everyone keeps saying there's no need to do this, I found that there is, just like you. So this works for me: # in application_controller.rb: def current_user @current_user ||= super && User.includes(

I've got a Hibernate object which's properties are all loaded lazy. Most of these properties are other Hibernate objects or PersistentSets. Now I want to force Hibernate to eager load these properties for just one time. Of course I could "touch" each of these properties with object.getSite().size() but maybe there's another way to achieve my goal. The documentation puts it like this: You can force the usual eager fetching of properties using fetch all properties in HQL. References Hibernate Core Reference Guide 19.1.7. Using lazy property fetching stephen.hanson This is an old question, but I

I have created a simple Spring boot project with Spring data. I have a TagGroup Entity which has one to many relation with Tags. @Entity @Table(name = "TAG_GROUP") public class TagGroup{ @OneToMany(fetch=FetchType.LAZY,mappedBy = "tagGroup") private Set<Tag> tagList; } The Tag Entity is as below @Entity @Table(name = "TAGS") public class Tag { @ManyToOne(optional = false,fetch=FetchType.LAZY) @JoinColumn(name = "TAG_GROUP_ID") private TagGroup tagGroup; } I am using Spring data extending the JPArepository and using its findAll method. The problem , the Lazy fetch doesn't work BUT Infact it is

I am trying to get Eager-Loading nested relationships, with constraints, to work. Everyone seems to be giving the same example of eager-loading nested relationships: $users = User::with('posts.comments')->get(); What I want to do instead is get all the the Users related to a post of a given id. But at the same time, I also want to get the comments associated with that post. In 4.1, I to achieve the latter, I could do: $comments = Comment::whereHas('post', function($query) { $query->whereId(1); })->get(); Is there a way to marry this two and constrain a nested relationship? Actually found it a

<?php class Cat extends Eloquent { public function user() { return $this->belongsTo('User'); } } class User extends Eloquent { public function cats() { return $this->hasMany('Cat'); } } Now: $cats = Cat::with('user')->get(); Performs 2 queries: select * from `cats` select * from `users` where `users`.`id` in ('1', '2', 'x') Why can't it just do: select * from cats inner join users on cats.user_id = users.id For those saying that there are both id columns in the table, that could be easily avoided with aliases: select c.id as cats__id, c.name as cats__name, c.user_id as cats__user_id, b.id as

In the documentation for eager loading it is stated that: If you eager load an association with a specified :limit option, it will be ignored, returning all the associated objects: class Picture < ActiveRecord::Base has_many :most_recent_comments, :class_name => 'Comment', :order => 'id DESC', :limit => 10 end Picture.find(:first, :include => :most_recent_comments).most_recent_comments # => returns all associated comments. If this is the case then what is the best way to achieve the "limit" on the loading? Let's say we're eager loading the last 10 blog posts onto the front page of a blog, we