Holger Hans Peter Freyther
9 years ago
11 changed files with 126 additions and 50 deletions
@ -1,26 +1,4 @@ |
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Copyright (c) 2013 [name of plugin creator] |
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Copyright (c) 2013 s.f.m.c. GmbH |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without modification, |
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are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright notice, |
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this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright notice, |
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this list of conditions and the following disclaimer in the documentation |
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and/or other materials provided with the distribution. |
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* Neither the name Spree nor the names of its contributors may be used to |
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endorse or promote products derived from this software without specific |
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prior written permission. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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AGPLv3 The code is AGPLv3 |
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@ -0,0 +1,74 @@ |
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module Spree |
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class StockMailer < ActionMailer::Base |
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helper 'spree/base' |
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def find_empty_products() |
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Spree::Product.where(:count_on_hand => 0).order("name").select {|prod| |
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prod.deleted_at.nil? } |
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end |
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def find_empty_variants() |
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Spree::Variant.where(:count_on_hand => 0).order("sku").select {|var| |
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var.deleted_at.nil? and not var.is_master? |
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} |
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end |
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def generate_estimate(var) |
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shipped_week = Spree::InventoryUnit.find(:all, :conditions => { |
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:state => 'shipped', |
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:variant_id => var.id, |
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:updated_at => @last_week.midnight..@today.end_of_day, |
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}).size() |
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shipped_month = Spree::InventoryUnit.find(:all, :conditions => { |
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:state => 'shipped', |
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:variant_id => var.id, |
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:updated_at => @last_month.midnight..@today.end_of_day, |
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}).size() |
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shipped_year = Spree::InventoryUnit.find(:all, :conditions => { |
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:state => 'shipped', |
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:variant_id => var.id, |
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:updated_at => @last_year.midnight..@today.end_of_day, |
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}).size() |
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# Normalize to units per day... with a shared secret about the range |
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norm_week = shipped_week / 7.0 |
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norm_month = shipped_month / 30.0 |
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norm_year = shipped_year / 365.0 |
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# A weighted mean with magic numbers pulled out of thing air. |
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mean = ((0.6 * norm_week) + (0.25 * norm_month) + (0.15 * norm_year)) / 1.0 |
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if var.sku.empty? |
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name = "Prd " + var.product.sku |
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else |
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name = "Sku " + var.sku |
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end |
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{'weighted_mean' => mean, 'variant' => var, 'product' => var.product, 'name' => name} |
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end |
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def generate_forecast() |
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@today = Date.today |
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@last_week = @today - 7 |
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@last_month = @today - 30 |
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@last_year = @today - 365 |
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forecast = [] |
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vars = Spree::Variant.where("deleted_at IS NULL").order("sku").select {|var| |
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var.product.deleted_at.nil? and var.count_on_hand > 0 } |
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vars.each {|var| |
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forecast.push(generate_estimate(var)) |
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} |
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forecast |
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end |
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def stock_report_email() |
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@empty_products = find_empty_products() |
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@empty_variants = find_empty_variants() |
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@forecast = generate_forecast() |
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mail(:to => 'webshop@sysmocom.de', |
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:subject => 'Stock report of the week') |
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end |
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end |
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end |
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@ -0,0 +1,21 @@ |
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Dear Shop-Owner, |
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below is the current stock report and estimates on when the products |
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will run low. |
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Estimates: |
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<% @forecast.each do |dict| %> |
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<%= dict['name'] %> => <%= dict['weighted_mean'].round(2) %> days until sold out. |
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<% end %> |
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Empty Products: |
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<% @empty_products.each do |product| %> |
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<%= product.name %> |
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<% end %> |
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Empty Variants: |
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<% @empty_variants.each do |variant| %> |
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<%= variant.name %> |
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<% end %> |
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@ -1,2 +1,3 @@ |
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require 'spree_core' |
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require 'spree_sysmocom_stock/engine' |
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require 'sysmocom_stock/engine' |
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@ -1,7 +1,7 @@ |
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# This command will automatically be run when you run "rails" with Rails 3 gems installed from the root of your application. |
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ENGINE_ROOT = File.expand_path('../..', __FILE__) |
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ENGINE_PATH = File.expand_path('../../lib/spree_sysmocom_stock/engine', __FILE__) |
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ENGINE_PATH = File.expand_path('../../lib/sysmocom_stock/engine', __FILE__) |
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require 'rails/all' |
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require 'rails/engine/commands' |
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