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queries_controller.rb
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queries_controller.rb
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module Blazer
class QueriesController < BaseController
before_action :set_query, only: [:show, :edit, :update, :destroy, :refresh]
def home
if params[:filter] == "dashboards"
@queries = []
else
set_queries(1000)
end
if params[:filter] && params[:filter] != "dashboards"
@dashboards = [] # TODO show my dashboards
else
@dashboards = Blazer::Dashboard.order(:name)
@dashboards = @dashboards.includes(:creator) if Blazer.user_class
end
@dashboards =
@dashboards.map do |d|
{
id: d.id,
name: d.name,
creator: blazer_user && d.try(:creator) == blazer_user ? "You" : d.try(:creator).try(Blazer.user_name),
to_param: d.to_param,
dashboard: true
}
end
end
def index
set_queries
render json: @queries
end
def new
@query = Blazer::Query.new(
data_source: params[:data_source],
name: params[:name]
)
if params[:fork_query_id]
@query.statement ||= Blazer::Query.find(params[:fork_query_id]).try(:statement)
end
end
def create
@query = Blazer::Query.new(query_params)
@query.creator = blazer_user if @query.respond_to?(:creator)
if @query.save
redirect_to query_path(@query, variable_params)
else
render_errors @query
end
end
def show
@statement = @query.statement.dup
process_vars(@statement, @query.data_source)
@smart_vars = {}
@sql_errors = []
data_source = Blazer.data_sources[@query.data_source]
@bind_vars.each do |var|
smart_var, error = parse_smart_variables(var, data_source)
@smart_vars[var] = smart_var if smart_var
@sql_errors << error if error
end
Blazer.transform_statement.call(data_source, @statement) if Blazer.transform_statement
end
def edit
end
def run
@statement = params[:statement]
data_source = params[:data_source]
process_vars(@statement, data_source)
@only_chart = params[:only_chart]
@run_id = blazer_params[:run_id]
@query = Query.find_by(id: params[:query_id]) if params[:query_id]
data_source = @query.data_source if @query && @query.data_source
@data_source = Blazer.data_sources[data_source]
if @run_id
@timestamp = blazer_params[:timestamp].to_i
@result = @data_source.run_results(@run_id)
@success = !@result.nil?
if @success
@data_source.delete_results(@run_id)
@columns = @result.columns
@rows = @result.rows
@error = @result.error
@just_cached = !@result.error && @result.cached_at.present?
@cached_at = nil
params[:data_source] = nil
render_run
elsif Time.now > Time.at(@timestamp + (@data_source.timeout || 600).to_i + 5)
# query lost
Rails.logger.info "[blazer lost query] #{@run_id}"
@error = "We lost your query :("
@rows = []
@columns = []
render_run
else
continue_run
end
elsif @success
@run_id = blazer_run_id
options = {user: blazer_user, query: @query, refresh_cache: params[:check], run_id: @run_id, async: Blazer.async}
if Blazer.async && request.format.symbol != :csv
result = []
Blazer::RunStatementJob.perform_async(result, @data_source, @statement, options)
wait_start = Time.now
loop do
sleep(0.02)
break if result.any? || Time.now - wait_start > 3
end
@result = result.first
else
@result = Blazer::RunStatement.new.perform(@data_source, @statement, options)
end
if @result
@data_source.delete_results(@run_id) if @run_id
@columns = @result.columns
@rows = @result.rows
@error = @result.error
@cached_at = @result.cached_at
@just_cached = @result.just_cached
render_run
else
@timestamp = Time.now.to_i
continue_run
end
else
render layout: false
end
end
def refresh
data_source = Blazer.data_sources[@query.data_source]
@statement = @query.statement.dup
process_vars(@statement, @query.data_source)
Blazer.transform_statement.call(data_source, @statement) if Blazer.transform_statement
data_source.clear_cache(@statement)
redirect_to query_path(@query, variable_params)
end
def update
if params[:commit] == "Fork"
@query = Blazer::Query.new
@query.creator = blazer_user if @query.respond_to?(:creator)
end
unless @query.editable?(blazer_user)
@query.errors.add(:base, "Sorry, permission denied")
end
if @query.errors.empty? && @query.update(query_params)
redirect_to query_path(@query, variable_params)
else
render_errors @query
end
end
def destroy
@query.destroy if @query.editable?(blazer_user)
redirect_to root_url
end
def tables
render json: Blazer.data_sources[params[:data_source]].tables
end
def schema
@schema = Blazer.data_sources[params[:data_source]].schema
end
def cancel
Blazer.data_sources[params[:data_source]].cancel(blazer_run_id)
render json: {}
end
private
def continue_run
render json: {run_id: @run_id, timestamp: @timestamp}, status: :accepted
end
def render_run
@checks = @query ? @query.checks.order(:id) : []
@first_row = @rows.first || []
@column_types = []
if @rows.any?
@columns.each_with_index do |column, i|
@column_types << (
case @first_row[i]
when Integer
"int"
when Float, BigDecimal
"float"
else
"string-ins"
end
)
end
end
@filename = @query.name.parameterize if @query
@min_width_types = @columns.each_with_index.select { |c, i| @first_row[i].is_a?(Time) || @first_row[i].is_a?(String) || @data_source.smart_columns[c] }.map(&:last)
@boom = @result.boom if @result
@linked_columns = @data_source.linked_columns
@markers = []
[["latitude", "longitude"], ["lat", "lon"], ["lat", "lng"]].each do |keys|
lat_index = @columns.index(keys.first)
lon_index = @columns.index(keys.last)
if lat_index && lon_index
@markers =
@rows.select do |r|
r[lat_index] && r[lon_index]
end.map do |r|
{
title: r.each_with_index.map{ |v, i| i == lat_index || i == lon_index ? nil : "<strong>#{@columns[i]}:</strong> #{v}" }.compact.join("<br />").truncate(140),
latitude: r[lat_index],
longitude: r[lon_index]
}
end
end
end
respond_to do |format|
format.html do
render layout: false
end
format.csv do
send_data csv_data(@columns, @rows, @data_source), type: "text/csv; charset=utf-8; header=present", disposition: "attachment; filename=\"#{@query.try(:name).try(:parameterize).presence || 'query'}.csv\""
end
end
end
def set_queries(limit = nil)
@my_queries =
if limit && blazer_user && !params[:filter] && Blazer.audit
queries_by_ids(Blazer::Audit.where(user_id: blazer_user.id).where("created_at > ?", 30.days.ago).where("query_id IS NOT NULL").group(:query_id).order("count_all desc").count.keys)
else
[]
end
@queries = Blazer::Query.named.select(:id, :name, :creator_id, :statement)
@queries = @queries.includes(:creator) if Blazer.user_class
if blazer_user && params[:filter] == "mine"
@queries = @queries.where(creator_id: blazer_user.id).reorder(updated_at: :desc)
elsif blazer_user && params[:filter] == "viewed" && Blazer.audit
@queries = queries_by_ids(Blazer::Audit.where(user_id: blazer_user.id).order(created_at: :desc).limit(500).pluck(:query_id).uniq)
else
@queries = @queries.where("id NOT IN (?)", @my_queries.map(&:id)) if @my_queries.any?
@queries = @queries.limit(limit) if limit
@queries = @queries.order(:name)
end
@queries = @queries.to_a
@more = limit && @queries.size >= limit
@queries = (@my_queries + @queries).select { |q| !q.name.to_s.start_with?("#") || q.try(:creator).try(:id) == blazer_user.try(:id) }
@queries =
@queries.map do |q|
{
id: q.id,
name: q.name,
creator: blazer_user && q.try(:creator) == blazer_user ? "You" : q.try(:creator).try(Blazer.user_name),
vars: extract_vars(q.statement).join(", "),
to_param: q.to_param
}
end
end
def queries_by_ids(favorite_query_ids)
queries = Blazer::Query.named.where(id: favorite_query_ids)
queries = queries.includes(:creator) if Blazer.user_class
queries = queries.index_by(&:id)
favorite_query_ids.map { |query_id| queries[query_id] }.compact
end
def set_query
@query = Blazer::Query.find(params[:id].to_s.split("-").first)
end
def query_params
params.require(:query).permit(:name, :description, :statement, :data_source)
end
def blazer_params
params[:blazer] || {}
end
def csv_data(columns, rows, data_source)
CSV.generate do |csv|
csv << columns
rows.each do |row|
csv << row.each_with_index.map { |v, i| v.is_a?(Time) ? blazer_time_value(data_source, columns[i], v) : v }
end
end
end
def blazer_time_value(data_source, k, v)
data_source.local_time_suffix.any? { |s| k.ends_with?(s) } ? v.to_s.sub(" UTC", "") : v.in_time_zone(Blazer.time_zone)
end
helper_method :blazer_time_value
def blazer_run_id
params[:run_id].to_s.gsub(/[^a-z0-9\-]/i, "")
end
end
end