我有一个Calls模型，我正在使用Reports Controller进行一些报告。
我可以搜索许多不同的标准和结果链，以便给我预期的搜索结果。我今天添加了一个新的用params搜索：vehicle_type
results = case search[:vehicle_type]
when "Ambulance"
ambulance
when "Wheelchair"
wheelchair
else
scoped
end
自从我将此case语句添加到report方法后，另一个case语句：type（见下文）不起作用。除此之外，所有其他搜索条件似乎都可以正常工作。
我在这里做错了吗？我的报告方法中不能有多个案例陈述将结果链接在一起吗？
results = case search[:type]
when "open"
open_status
when "canceled"
cancel
when "closed"
closed
when "waitreturn"
waitreturn
when "wheelchair"
wheelchair
else
scoped
end
Call.rb
class Call < ActiveRecord::Base
before_create :generate_incident_id, :set_dispatched_time
attr_accessible :caller_address, :caller_street, :caller_state, :caller_zip, :caller_name, :caller_phone, :primary_diagnosis, :unit_assigned,
:call_status, :incident_number, :facility_from, :facility_to, :unit_id, :nature_id, :facility_id, :caller_email, :facility_from_location,
:facility_to_location, :patient_name, :patient_age, :patient_sex, :patient_insurance, :transfer_from_id, :transfer_to_id, :transfer_date,
:dispatched_time, :en_route_time, :on_scene_time, :to_hospital_time, :at_hospital_time, :in_service_time, :service_level_id,
:special_equipment_ids, :insurance_id, :transfer_from_other, :transfer_to_other, :unit_ids, :patient_sex_id, :incharge_id, :attendant_id,
:incharge2_id, :attendant2_id, :wait_return, :cancel_reason_id, :parent_call_id, :imx_num, :dispatched_by, :traffic_type
attr_writer :current_setup
validates :caller_name, :caller_phone, :patient_name, :patient_age, :nature_id, :insurance_id, :presence => true
has_many :call_units
has_many :units, through: :call_units
belongs_to :nature
belongs_to :service_level
belongs_to :patient_sex
belongs_to :insurance
has_many :call_special_equipments
has_many :special_equipments, :through => :call_special_equipments
belongs_to :transferred_from, :foreign_key => :transfer_from_id, :class_name => 'Facility'
belongs_to :transferred_to, :foreign_key => :transfer_to_id, :class_name => 'Facility'
belongs_to :parent_call, class_name: "Call"
has_many :notes
belongs_to :cancel_reason
scope :open_status, where(call_status: "open")
scope :cancel, where(call_status: "cancel")
scope :closed, where(call_status: "close")
scope :waitreturn, where(wait_return: "yes")
scope :wheelchair, lambda { where(service_level_id: ServiceLevel.find_by_level_of_service("WC").id) }
scope :bls, lambda { where(service_level_id: ServiceLevel.find_by_level_of_service("BLS").id) }
scope :als, lambda { where(service_level_id: ServiceLevel.find_by_level_of_service("ALS").id) }
scope :micu, lambda { where(service_level_id: ServiceLevel.find_by_level_of_service("MICU").id) }
scope :cct, lambda { where(service_level_id: ServiceLevel.find_by_level_of_service("CCT").id) }
scope :by_service_level, lambda { |service_level| where(service_level_id: ServiceLevel.find_by_level_of_service(service_level).id) }
scope :from_facility, lambda { |id| where(transfer_from_id: id) }
scope :to_facility, lambda { |id| where(transfer_to_id: id) }
scope :search_between, lambda { |start_date, end_date| where("transfer_date BETWEEN ? AND ?", start_date.beginning_of_day, end_date.end_of_day)}
scope :search_by_start_date, lambda { |start_date| where('transfer_date BETWEEN ? AND ?', start_date.beginning_of_day, start_date.end_of_day) }
scope :search_by_end_date, lambda { |end_date| where('transfer_date BETWEEN ? AND ?', end_date.beginning_of_day, end_date.end_of_day) }
scope :open_calls, lambda { open_status.includes(:call_units).where(["call_units.unit_id IS NOT NULL"]) }
scope :unassigned_calls, lambda { open_status.includes(:call_units).where(["call_units.unit_id IS NULL"]).order("calls.id ASC") }
scope :assigned_calls, lambda { open_status.includes(:call_units).where(["call_units.unit_id IS NOT NULL"]).order("calls.id ASC") }
scope :by_unit_name, lambda {|unit_name| joins(:units).where('units.unit_name = ?', unit_name)}
scope :ambulance, lambda {joins(:units).where('units.vehicle_type = ?', "Ambulance")}
scope :wheelchair, lambda {joins(:units).where('units.vehicle_type = ?', "Wheelchair")}
#Scope to find scheduled calls
scope :scheduled_calls, lambda { open_status.includes(:call_units).where(["calls.transfer_date > ?", Time.zone.now.end_of_day]) }
# Scope to define all open calls scheduled and current assigned to medic in MDT view
scope :medic_calls, lambda { where(["call_status = ? and call_units.unit_id IS NOT NULL", "open"]).order("id ASC") }
# Scope to define all open calls scheduled and current for MDT view
scope :today, lambda { where("transfer_date BETWEEN ? AND ?", Time.zone.now.beginning_of_day, Time.zone.now.end_of_day) }
scope :year, lambda { where("transfer_date BETWEEN ? AND ?", Time.zone.now.beginning_of_year, Time.zone.now.end_of_year) }
scope :until_end_of_day, lambda { where("transfer_date < ?", Time.zone.now.end_of_day) }
def self.search(search)
if search
where('incident_number LIKE ? OR patient_name ILIKE ?', "%#{search}%", "%#{search}%")
else
scoped
end
end
#Report search logic
def self.report(search)
search ||= { type: "all" }
# Determine which scope to search by
results = case search[:type]
when "open"
open_status
when "canceled"
cancel
when "closed"
closed
when "waitreturn"
waitreturn
when "wheelchair"
wheelchair
else
scoped
end
results = case search[:vehicle_type]
when "Ambulance"
ambulance
when "Wheelchair"
wheelchair
else
scoped
end
results = results.by_unit_name(search[:unit_name]) if search[:unit_name].present?
results = results.by_service_level(search[:service_level]) if search[:service_level].present?
results = results.from_facility(search[:transferred_from]) if search[:transferred_from].present?
results = results.to_facility(search[:transferred_to]) if search[:transferred_to].present?
# If searching with BOTH a start and end date
if search[:start_date].present? && search[:end_date].present?
results = results.search_between(Date.parse(search[:start_date]), Date.parse(search[:end_date]))
# If search with any other date parameters (including none)
else
results = results.search_by_start_date(Date.parse(search[:start_date])) if search[:start_date].present?
results = results.search_by_end_date(Date.parse(search[:end_date])) if search[:end_date].present?
end
results
end
#Before create set dispatched time
def set_dispatched_time
self.dispatched_time = Time.zone.now
end
def dispatch!(unit_ids)
units << Unit.find(unit_ids)
set_dispatched_time
save!
end
def closetime!
self.closed_at = Time.zone.now
end
def elapsed_time
(Time.zone.now - self.dispatched_time).to_i
end
def run_time
(self.closed_at - self.dispatched_time).to_i
end
#Auto-increment incident_id
def generate_incident_id
incident_year = Time.now.year.to_s[2..-1]
if Call.count == 0
self.incident_number = "#{incident_year}-00001"
else
last_incident_number = Call.last.incident_number
number = last_incident_number.split('-')[1].to_i
number += 1
self.incident_number = incident_year + '-' + "%05d" % number
end
end
def overdue
if transfer_date - Time.zone.now < 30.minutes
end
end
def self.to_csv(records = [], options = {})
CSV.generate(options) do |csv|
csv << ["Incident Number", "Caller Name", "Caller Phone", "Call Created At", "Call Status", "Wait and Return", "Diagnosis", "Service Level", "Patient Name", "Patient Age", "Patient Sex", "Transfer From", "Transfer To", "Insurance", "Transfer Date", "Unit", "IMX Number"]
records.each do |call|
csv << [call.incident_number, call.caller_name, call.caller_phone, call.created_at, call.call_status, call.wait_return, call.nature.determinant, call.service_level.level_of_service, call.patient_name, call.patient_age, call.patient_sex.sex, transfer_from_name(call), transfer_to_name(call), call.insurance.insurance_type, call.transfer_date, call.units.map(&:unit_name).join(", "), call.imx_num]
end
end
end
def self.transfer_from_name(call)
if call.transfer_from_id?
call.transferred_from.facility_name
else call.transfer_from_other
end
end
def self.transfer_to_name(call)
if call.transfer_to_id?
call.transferred_to.facility_name
else call.transfer_to_other
end
end
def send_mail(mail_type)
units.each do |unit|
CallMailer.send(mail_type, unit.incharge, self).deliver
CallMailer.send(mail_type, unit.attendant, self).deliver
end
end
end
_search.html.erb
<div>
<%= form_tag reports_path, :method => 'get' do %>
<p>
<%= select_tag "search[type]", options_for_select([["All Statuses", "all"], ["Open", "open"], ["Closed", "closed"], ["Canceled", "canceled"], ["Wait & Return", "waitreturn"]], selected: params[:search].try(:[], :type)) %>
<%= select_tag "search[service_level]", options_from_collection_for_select(ServiceLevel.order(:level_of_service), :level_of_service, :level_of_service, selected: params[:search].try(:[], :service_level)), prompt: "All Service Levels" %>
</p>
<p>
<%= select_tag "search[vehicle_type]", options_for_select([["All Vehicles", "all"], ["Ambulance", "Ambulance"], ["Wheelchair", "Wheelchair"]], selected: params[:search].try(:[], :vehicle_type)) %>
</p>
<p>
<%= text_field_tag "search[start_date]", params[:search].try(:[], :start_date), :placeholder => 'Start Date', :class => 'input-large search-query ', id: 'start_date_select' %>
to
<%= text_field_tag "search[end_date]", params[:search].try(:[], :end_date), :placeholder => 'End Date', :class => 'input-large search-query', id: 'end_date_select' %>
</p>
<p>
Unit
<%= select_tag "search[unit_name]", options_from_collection_for_select(Unit.order(:unit_name), :unit_name, :unit_name, selected: params[:search].try(:[], :unit_name)), prompt: "Any Unit" %>
</p>
<p>
From
<%= select_tag "search[transferred_from]", options_from_collection_for_select(Facility.order(:facility_name), :id, :facility_name, selected: params[:search].try(:[], :transferred_from)), prompt: "Any Facility" %>
To
<%= select_tag "search[transferred_to]", options_from_collection_for_select(Facility.order(:facility_name), :id, :facility_name, selected: params[:search].try(:[], :transferred_to)), prompt: "Any Facility" %>
</p>
<p>
Results Per Page
<%= select_tag "per_page", options_for_select([["10", 10], ["25", 25] , ["50", 50], ["100", 100], ["All", 100000]], selected: params[:per_page]), class: "span1" %>
<%= submit_tag "Search", :name => nil, :class => 'btn' %> <%= link_to "Export Search Results to CSV", reports_path(params.merge(format: "csv")), :class => "btn btn-info" %>
</p>
<% end %>
</div>
reports_controller.rb
def index
@calls = Call.report(params[:search])
respond_to do |format|
format.html do
@calls = @calls.paginate(:per_page => params[:per_page] || 10, :page => params[:page]).order('incident_number ASC')
end
format.csv { send_data Call.to_csv(@calls) }
format.xls { send_data @calls.to_csv(col_sep: "\t") }
end
end
答案 0 :(得分：1)
您的第二个case语句将覆盖results。您可能希望它结合您现有的范围：
results = case search[:vehicle_type]
when "Ambulance"
results.ambulance
when "Wheelchair"
results.wheelchair
else
results.scoped
end