Class: Blazer::QueriesController

Inherits:
BaseController
  • Object
show all
Defined in:
app/controllers/blazer/queries_controller.rb

Instance Method Summary collapse

Instance Method Details

#cancel ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 226

def cancel
  @data_source.cancel(blazer_run_id)
  head :ok
end

#create ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 56

def create
  @query = Blazer::Query.new(query_params)
  @query.creator = blazer_user if @query.respond_to?(:creator)
  @query.status = "active" if @query.respond_to?(:status)

  if @query.save
    redirect_to query_path(@query, params: variable_params(@query))
  else
    render_errors @query
  end
end

#destroy ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 207

def destroy
  @query.destroy if @query.editable?(blazer_user)
  redirect_to root_path
end

#docs ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 216

def docs
  @smart_variables = @data_source.smart_variables
  @linked_columns = @data_source.linked_columns
  @smart_columns = @data_source.smart_columns
end

#edit ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 91

def edit
end

#home ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 6

def home
  set_queries(1000)

  if params[:filter]
    @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

#index ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 28

def index
  respond_to do |format|
    format.html do
      redirect_to root_path
    end
    format.json do
      set_queries
      render json: @queries
    end
  end
end

#new ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 40

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
  if params[:upload_id]
    upload = Blazer::Upload.find(params[:upload_id])
    upload_settings = Blazer.settings["uploads"]
    @query.data_source ||= upload_settings["data_source"]
    @query.statement ||= "SELECT * FROM #{upload.table_name} LIMIT 10"
  end
end

#refresh ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 186

def refresh
  refresh_query(@query)
  redirect_to query_path(@query, params: variable_params(@query))
end

#run ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 94

def run
  @query = Query.find_by(id: params[:query_id]) if params[:query_id]

  # use query data source when present
  data_source = @query.data_source if @query && @query.data_source
  data_source ||= params[:data_source]
  @data_source = Blazer.data_sources[data_source]

  @statement = Blazer::Statement.new(params[:statement], @data_source)
  # before process_vars
  @cohort_analysis = @statement.cohort_analysis?

  # fallback for now for users with open tabs
  # TODO remove fallback in future version
  @var_params = request.request_parameters["variables"] || request.request_parameters
  @success = process_vars(@statement, @var_params)
  @only_chart = params[:only_chart]
  @run_id = blazer_params[:run_id]

  run_cohort_analysis if @cohort_analysis

  query_running = !@run_id.nil?

  if query_running
    @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

    async = Blazer.async

    options = {user: blazer_user, query: @query, refresh_cache: params[:check], run_id: @run_id, async: async}
    if async && request.format.symbol != :csv
      Blazer::RunStatementJob.perform_later(@data_source.id, @statement.statement, options.merge(values: @statement.values))
      wait_start = Blazer.monotonic_time
      loop do
        sleep(0.1)
        @result = @data_source.run_results(@run_id)
        break if @result || Blazer.monotonic_time - wait_start > 3
      end
    else
      @result = Blazer::RunStatement.new.perform(@statement, options)
    end

    if @result
      @data_source.delete_results(@run_id) if @run_id && async

      @columns = @result.columns
      @rows = @result.rows
      @error = @result.error
      @cached_at = @result.cached_at
      @just_cached = @result.just_cached

      @forecast = @query && @result.forecastable? && params[:forecast]
      if @forecast
        @result.forecast
        @forecast_error = @result.forecast_error
        @forecast = @forecast_error.nil?
      end

      render_run
    else
      @timestamp = Time.now.to_i
      continue_run
    end
  else
    render layout: false
  end
end

#schema ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 222

def schema
  @schema = @data_source.schema
end

#show ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 68

def show
  @statement = @query.statement_object
  @success = process_vars(@statement)

  @smart_vars = {}
  @sql_errors = []
  @bind_vars.each do |var|
    smart_var, error = parse_smart_variables(var, @statement.data_source)
    @smart_vars[var] = smart_var if smart_var
    @sql_errors << error if error
  end

  @query.update!(status: "active") if @query.respond_to?(:status) && @query.status.in?(["archived", nil])

  add_cohort_analysis_vars if @query.cohort_analysis?

  if @success
    @run_data = {statement: @query.statement, query_id: @query.id, data_source: @query.data_source, variables: variable_params(@query)}
    @run_data[:forecast] = "t" if params[:forecast]
    @run_data[:cohort_period] = params[:cohort_period] if params[:cohort_period]
  end
end

#tables ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 212

def tables
  render json: @data_source.tables
end

#update ⇒ Object 



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# File 'app/controllers/blazer/queries_controller.rb', line 191

def update
  if params[:commit] == "Fork"
    @query = Blazer::Query.new
    @query.creator = blazer_user if @query.respond_to?(:creator)
  end
  @query.status = "active" if @query.respond_to?(:status)
  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, params: variable_params(@query))
  else
    render_errors @query
  end
end