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Fixes #11331: Created random generator to fetch nodes randomly as cards #11332

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Fixes #11331: Created random generator to fetch nodes randomly as cards #11332

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8ae260f
Fixes #11331: Created random generator to fetch nodes randomly as cards
KarishmaVanwari Aug 5, 2022
73ab354
fixes to sidebar html and get_recommendations unit test
jywarren Sep 5, 2022
1850bf3
Update test/unit/tag_test.rb
jywarren Sep 6, 2022
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5 changes: 5 additions & 0 deletions app/controllers/wiki_controller.rb
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Expand Up @@ -60,6 +60,11 @@ def show
if !@node.nil? # it's a place page!
@tags = @node.tags
@tags += [Tag.find_by(name: params[:id])] if Tag.find_by(name: params[:id])

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Trailing whitespace detected.

tag1, tag2 = @node.normal_tags(:followers).includes(:tag).pluck(:name).first(2)
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@jywarren jywarren Aug 15, 2022 •
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Suggested change
tag1, tag2 = @node.normal_tags(:followers).includes(:tag).pluck(:name).first(2)
puts ">>>>>>>>>>>>>>>>>>>>>>>>>>>"
puts @node.inspect
puts ">>>>>>>>>>>>>>>>>>>>>>>>>>>"
tag1, tag2 = @node.normal_tags(:followers).includes(:tag).pluck(:name).first(2)


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Trailing whitespace detected.

# get recommendations
@recommendations = Tag.get_recommendations(tag1, tag2)
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Hi @KarishmaVanwari, since you want the random cards to be displayed in the dashboard's sidebar shouldn't this be in home_controller?

plots2/app/controllers/home_controller.rb

Lines 39 to 59 in ca319fc

def dashboard_v2
@title = I18n.t('dashboard._header.dashboard')
# The new dashboard displays the blog and topics list
if current_user
@blog = Tag.find_nodes_by_type('blog', 'note', 1).limit(1).first
# Tags without the blog tag and everything tag to avoid double display
exclude_tids = Tag.where(name: %w(blog everything)).pluck(:tid)
@pagy, @tag_subscriptions = pagy(
TagSelection
.select('tag_selections.tid, term_data.name')
.where(user_id: current_user.id, following: true)
.where.not(tid: exclude_tids)
.joins("INNER JOIN term_data ON tag_selections.tid = term_data.tid")
.order("term_data.activity_timestamp DESC")
)
@trending_tags = trending
render template: 'dashboard_v2/dashboard'
else
redirect_to '/research'
end
end

Please let me know if I'm wrong or missing something.

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What if we put it in a reusable named methodin application_controller so it can be used in multiple places?

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I tried placing this piece of code on line 54 in home_conroller but it gives the following error -
NoMethodError in HomeController#dashboard_v2
undefined method normal_tags for nil:NilClass .

@TildaDares @jywarren

else # it's a new wiki page!
@title = I18n.t('wiki_controller.new_wiki_page')
if current_user
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30 changes: 30 additions & 0 deletions app/models/tag.rb
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Expand Up @@ -478,4 +478,34 @@ def span(start, fin)
def range(fin, week)
(fin.to_i - week.weeks.to_i).to_s..(fin.to_i - (week - 1).weeks.to_i).to_s
end

def self.get_recommendations(tag1, tag2)
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private (on line 464) does not make singleton methods private. Use private_class_method or private inside a class << self block instead.


tag1_content_nids = find_recommended_nodes(tag1)
tag2_content_nids = find_recommended_nodes(tag2)

random_content_nids = tag1_content_nids.sample(3) + tag2_content_nids.sample(3)

Node.where("nid IN (?)", random_content_nids)
end

def self.find_recommended_nodes(tagnames, limit = 10)
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private (on line 464) does not make singleton methods private. Use private_class_method or private inside a class << self block instead.


date_ranges = [1.years.ago..3.years.ago, 4.years.ago..6.years.ago, 7.years.ago..9.years.ago]

selected_date_range = date_ranges.sample(1)

nodes = Node.where("cached_likes > 20 AND views > 100", status: 1)
.where(created: selected_date_range)
.includes(:tag)
.references(:term_data)
.where('term_data.name IN (?)', tagnames)

Node.where('node.nid IN (?)', nodes.collect(&:nid))
.includes(:revision, :tag)
.references(:node_revisions)
.where(status: 1)
.limit(limit)
.pluck(:nid)
end
end
14 changes: 13 additions & 1 deletion app/views/dashboard_v2/_sidebar.html.erb
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Expand Up @@ -55,7 +55,19 @@
</div>
</div>
</div>

<div>
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could we move this into its own partial - to load with <%= render partial: "nodes/random" %> and the partial template would be _random.html.erb.

<% @recommendations ||= Tag.get_recommendations("blog", "three") %>
<% @recommendations.each do |node| %>
<div class="card recommendations" style="width: 18rem;">
<img class="card-img-top" src="#" alt="Card image cap">
<div class="card-body">
<h5 class="card-title"><%= node.nid %></h5>
<p class="card-text">Post content here</p>
<a href="#" class="btn btn-primary">Read more button here</a>
</div>
</div>
<% end %>
</div>

<style>

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6 changes: 6 additions & 0 deletions test/unit/tag_test.rb
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Expand Up @@ -294,4 +294,10 @@ def setup
assert lat.location_tag?
assert lon.location_tag?
end

test 'Tag.get_recommendations' do
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OK, here's the unit test. Let's ensure it returns something! We could even test how many nodes it returns, or something else. But most importantly that it returns nodes at all!

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@jywarren jywarren Sep 6, 2022 •
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OK, see below where I made a further suggestion about the unit test: #11332 (comment) (it got collapsed because I accepted the change)

nodes = Tag.get_recommendations("blog", "test")
assert_not_nil nodes
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assert nodes.length > 0
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Aha! This assertion failed! So, looks like we have been getting an empty array back:

https://github.com/publiclab/plots2/runs/8217990567?check_suite_focus=true#step:5:85

TagTest#test_Tag.get_recommendations (23.30s)
        Expected false to be truthy.
        test/unit/tag_test.rb:301:in `block in <class:TagTest>'

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Great, so now, we can try to fix that. Once we push a fix up as a commit to this PR, the test will start to pass again -- that's actually "Test Driven Development" -- we set up a specific enough test condition (or "assertion") that our test will pass once it's working properly. The test actually precedes the final solution!

end
end