scinote-web/app/controllers/project_comments_controller.rb

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class ProjectCommentsController < ApplicationController
before_action :load_vars
before_action :check_view_permissions, only: :index
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before_action :check_add_permissions, only: [:create]
before_action :check_edit_permissions, only: [:edit, :update]
before_action :check_destroy_permissions, only: [:destroy]
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def index
@comments = @project.last_comments(@last_comment_id, @per_page)
respond_to do |format|
format.json do
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# 'index' partial includes header and form for adding new
# messages. 'list' partial is used for showing more
# comments.
partial = 'index.html.erb'
partial = 'list.html.erb' if @last_comment_id > 0
more_url = ''
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if @comments.count > 0
more_url = url_for(project_project_comments_url(format: :json,
from: @comments
.first.id))
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end
render json: {
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perPage: @per_page,
resultsNumber: @comments.length,
moreUrl: more_url,
html: render_to_string(
partial: partial,
locals: {
comments: @comments,
more_comments_url: more_url
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}
)
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}
end
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end
end
def create
@comment = Comment.new(
message: comment_params[:message],
user: current_user)
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respond_to do |format|
if (@comment.valid? && @project.comments << @comment)
# Generate activity
Activity.create(
type_of: :add_comment_to_project,
user: current_user,
project: @project,
message: t(
'activities.add_comment_to_project',
user: current_user.full_name,
project: @project.name
)
)
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format.json {
render json: {
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html: render_to_string(
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partial: 'comment.html.erb',
locals: {
comment: @comment
}
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),
date: @comment.created_at.strftime('%d.%m.%Y')
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}, status: :created
}
else
response.status = 400
format.json {
render json: {
errors: @comment.errors.to_hash(true)
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}
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}
end
end
end
def edit
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@update_url =
project_project_comment_path(@project, @comment, format: :json)
respond_to do |format|
format.json do
render json: {
html: render_to_string(
partial: '/comments/edit.html.erb'
)
}
end
end
end
def update
@comment.message = comment_params[:message]
respond_to do |format|
format.json do
if @comment.save
# Generate activity
Activity.create(
type_of: :edit_project_comment,
user: current_user,
project: @project,
message: t(
'activities.edit_project_comment',
user: current_user.full_name,
project: @project.name
)
)
render json: {}, status: :ok
else
render json: { errors: @comment.errors.to_hash(true) },
status: :unprocessable_entity
end
end
end
end
def destroy
respond_to do |format|
format.json do
if @comment.destroy
# Generate activity
Activity.create(
type_of: :delete_project_comment,
user: current_user,
project: @project,
message: t(
'activities.delete_project_comment',
user: current_user.full_name,
project: @project.name
)
)
render json: {}, status: :ok
else
render json: { message: I18n.t('comments.delete_error') },
status: :unprocessable_entity
end
end
end
end
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private
def load_vars
@last_comment_id = params[:from].to_i
@per_page = Constants::COMMENTS_SEARCH_LIMIT
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@project = Project.find_by_id(params[:project_id])
unless @project
render_404
end
end
def check_view_permissions
unless can_view_project_comments(@project)
render_403
end
end
def check_add_permissions
unless can_add_comment_to_project(@project)
render_403
end
end
def check_edit_permissions
@comment = Comment.find_by_id(params[:id])
render_403 unless @comment.present? && can_edit_project_comment(@comment)
end
def check_destroy_permissions
@comment = Comment.find_by_id(params[:id])
render_403 unless @comment.present? && can_delete_project_comment(@comment)
end
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def comment_params
params.require(:comment).permit(:message)
end
end