houdini/lib/query/query_supporters.rb

676 lines
27 KiB
Ruby

# License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
require 'qexpr'
require 'psql'
require 'email'
require 'format/currency'
require 'format/csv'
module QuerySupporters
# Query supporters and their donations and gift levels for a campaign
def self.campaign_list_expr(np_id, campaign_id, query)
expr = Qexpr.new.from('supporters')
.left_outer_join('donations', 'donations.supporter_id=supporters.id')
.left_outer_join('campaign_gifts', 'donations.id=campaign_gifts.donation_id')
.left_outer_join('campaign_gift_options', 'campaign_gifts.campaign_gift_option_id=campaign_gift_options.id')
.where("supporters.nonprofit_id=$id", id: np_id)
.where("donations.campaign_id=$id", id: campaign_id)
.group_by('supporters.id')
.order_by('MAX(donations.date) DESC')
if query[:search].present?
expr = expr.where(%Q(
supporters.name ILIKE $search
OR supporters.email ILIKE $search
OR campaign_gift_options.name ILIKE $search
), search: '%' + query[:search] + '%')
end
return expr
end
# Used in the campaign donor listing
def self.campaign_list(np_id, campaign_id, query)
limit = 50
offset = Qexpr.page_offset(limit, query[:page])
data = Psql.execute(
campaign_list_expr(np_id, campaign_id, query).select(
'supporters.id',
'supporters.name',
'supporters.email',
'SUM(donations.amount) AS total_raised',
'ARRAY_AGG(DISTINCT campaign_gift_options.name) AS campaign_gift_names',
'DATE(MAX(donations.created_at)) AS latest_gift',
).limit(limit).offset(offset)
)
total_count = Psql.execute(
Qexpr.new.select("COUNT(s)")
.from(campaign_list_expr(np_id, campaign_id, query).remove(:order_by).select('supporters.id').as('s').parse)
).first['count']
return {
data: data,
total_count: total_count,
remaining: Qexpr.remaining_count(total_count, limit, query[:page])
}
end
def self.full_search_metrics(np_id, query)
total_count = full_filter_expr(np_id, query)
.select("COUNT(supporters)")
.remove_clause(:order_by)
.execute.first['count']
return {
total_count: total_count,
remaining_count: Qexpr.remaining_count(total_count, 30, query[:page])
}
end
# Full supporter search mainly for /nonprofits/id/supporters dashboard
def self.full_search(np_id, query)
select = [
'supporters.name',
'supporters.email',
'supporters.is_unsubscribed_from_emails',
'supporters.id AS id',
'tags.names AS tags',
"to_char(payments.max_date, 'MM/DD/YY') AS last_contribution",
'payments.sum AS total_raised'
]
if query[:select]
select += query[:select].split(',')
end
supps = full_filter_expr(np_id, query)
.select(*select)
.paginate(query[:page].to_i, 30)
.execute
return { data: supps }
end
def self._full_search(np_id, query)
select = [
'supporters.name',
'supporters.email',
'supporters.is_unsubscribed_from_emails',
'supporters.id AS id',
'tags.names AS tags',
"to_char(payments.max_date, 'MM/DD/YY') AS last_contribution",
'payments.sum AS total_raised'
]
if query[:select]
select += query[:select].split(',')
end
supps = full_filter_expr(np_id, query)
.select(*select)
.paginate(query[:page].to_i, query[:page_length].to_i)
.execute
return { data: supps }
end
# # Given a list of supporters, you may want to remove duplicates from those supporters.
# # @param [Enumerable[Supporter]] supporters
# def self._remove_dupes_on_a_list_of_supporters(supporters, np_id)
#
# new_supporters =supporters.clone.to_a
#
# QuerySupporters.dupes_on_name_and_email(np_id).each{|duplicates|
# matched_in_group = false
# duplicates.each{|i|
# supporter = new_supporters.find{|s| s.id == i}
# if (supporter)
# if (matched_in_group)
# new_supporters.delete(supporter)
# else
# matched_in_group = true
# end
# end
# }
#
# }
#
# return new_supporters
# end
# Perform all filters and search for /nonprofits/id/supporters dashboard and export
def self.full_filter_expr(np_id, query)
payments_subquery =
Qx.select("supporter_id", "SUM(gross_amount)", "MAX(date) AS max_date", "MIN(date) AS min_date", "COUNT(*) AS count")
.from(
Qx.select("supporter_id", "date", "gross_amount")
.from(:payments)
.join(Qx.select('id')
.from(:supporters)
.where("supporters.nonprofit_id = $id and deleted != 'true'", id: np_id )
.as("payments_to_supporters"), "payments_to_supporters.id = payments.supporter_id"
)
.as("outer_from_payment_to_supporter")
.parse)
.group_by(:supporter_id)
.as(:payments)
tags_subquery = Qx.select("tag_joins.supporter_id", "ARRAY_AGG(tag_masters.id) AS ids", "ARRAY_AGG(tag_masters.name::text) AS names")
.from(:tag_joins)
.join(:tag_masters, "tag_masters.id=tag_joins.tag_master_id")
.where("tag_masters.deleted IS NULL")
.group_by("tag_joins.supporter_id")
.as(:tags)
expr = Qx.select('supporters.id').from(:supporters)
.where(
["supporters.nonprofit_id=$id", id: np_id.to_i],
["supporters.deleted != true"]
)
.left_join(
[tags_subquery, "tags.supporter_id=supporters.id"],
[payments_subquery, "payments.supporter_id=supporters.id"]
)
.order_by('payments.max_date DESC NULLS LAST')
if query[:last_payment_after].present?
expr = expr.and_where("payments.max_date > $d", d: Chronic.parse(query[:last_payment_after]))
end
if query[:last_payment_before].present?
expr = expr.and_where("payments.max_date < $d", d: Chronic.parse(query[:last_payment_before]))
end
if query[:first_payment_after].present?
expr = expr.and_where("payments.min_date > $d", d: Chronic.parse(query[:first_payment_after]))
end
if query[:first_payment_before].present?
expr = expr.and_where("payments.min_date < $d", d: Chronic.parse(query[:first_payment_before]))
end
if query[:total_raised_greater_than].present?
expr = expr.and_where("payments.sum > $amount", amount: query[:total_raised_greater_than].to_i * 100)
end
if query[:total_raised_less_than].present?
expr = expr.and_where("payments.sum < $amount OR payments.supporter_id IS NULL", amount: query[:total_raised_less_than].to_i * 100)
end
if ['week', 'month', 'quarter', 'year'].include? query[:has_contributed_during]
d = Time.current.send('beginning_of_' + query[:has_contributed_during])
expr = expr.and_where("payments.max_date >= $d", d: d)
end
if ['week', 'month', 'quarter', 'year'].include? query[:has_not_contributed_during]
d = Time.current.send('beginning_of_' + query[:has_not_contributed_during])
expr = expr.and_where("payments.count = 0 OR payments.max_date <= $d", d: d)
end
if query[:MAX_payment_before].present?
date_ago = Timespan::TimeUnits[query[:MAX_payment_before]].utc
expr = expr.and_where("payments.max_date < $date OR payments.count = 0", date: date_ago)
end
if query[:search].present?
expr = expr.and_where(%Q(
supporters.name ILIKE $search
OR supporters.email ILIKE $search
OR supporters.organization ILIKE $search
), search: '%' + query[:search] + '%')
end
if query[:notes].present?
notes_subquery = Qx.select("STRING_AGG(content, ' ') as content, supporter_id")
.from(:supporter_notes)
.group_by(:supporter_id)
.as(:notes)
expr = expr.add_left_join(notes_subquery, "notes.supporter_id=supporters.id")
.and_where("to_tsvector('english', notes.content) @@ plainto_tsquery('english', $notes)", notes: query[:notes])
end
if query[:custom_fields].present?
c_f_subquery = Qx.select("STRING_AGG(value, ' ') as value", "supporter_id")
.from(:custom_field_joins)
.group_by("custom_field_joins.supporter_id")
.as(:custom_fields)
expr = expr.add_left_join(c_f_subquery, "custom_fields.supporter_id=supporters.id")
.and_where("to_tsvector('english', custom_fields.value) @@ plainto_tsquery('english', $custom_fields)", custom_fields: query[:custom_fields])
end
if query[:location].present?
expr = expr.and_where("lower(supporters.city) LIKE $city OR lower(supporters.zip_code) LIKE $zip", city: query[:location].downcase, zip: query[:location].downcase)
end
if query[:recurring].present?
rec_ps_subquery = Qx.select("payments.count", "payments.supporter_id")
.from(:payments)
.where("kind='RecurringDonation'")
.group_by("payments.supporter_id")
.as(:rec_ps)
expr = expr.add_left_join(rec_ps_subquery, "rec_ps.supporter_id=supporters.id")
.and_where('rec_ps.count > 0')
end
if query[:ids].present?
expr = expr.and_where("supporters.id IN ($ids)", ids: query[:ids].split(",").map(&:to_i))
end
if query[:select].present?
expr = expr.select(*query[:select].split(",").map{|x| Qx.quote_ident(x)})
end
# Sort by supporters who have all of the list of tag names
if query[:tags].present?
tag_ids = (query[:tags].is_a?(String) ? query[:tags].split(',') : query[:tags]).map(&:to_i)
expr = expr.and_where("tags.ids @> ARRAY[$tag_ids]", tag_ids: tag_ids)
end
if query[:campaign_id].present?
expr = expr.add_join("donations", "donations.supporter_id=supporters.id AND donations.campaign_id=#{query[:campaign_id].to_i}")
end
if query[:event_id].present?
select_tickets_supporters = Qx.select("event_ticket_supporters.supporter_id")
.from(
"#{Qx.select("MAX(tickets.event_id) AS event_id", "tickets.supporter_id")
.from(:tickets)
.where("event_id = $event_id", event_id: query[:event_id])
.group_by(:supporter_id).as('event_ticket_supporters').parse}"
)
select_donation_supporters =
Qx.select("event_donation_supporters.supporter_id")
.from(
"#{Qx.select("MAX(donations.event_id) AS event_id", "donations.supporter_id")
.from(:donations)
.where("event_id = $event_id", event_id: query[:event_id] )
.group_by(:supporter_id).as('event_donation_supporters').parse}")
union_expr = "(
#{select_tickets_supporters.parse}
UNION DISTINCT
#{select_donation_supporters.parse}
) AS event_supporters"
expr = expr
.add_join(
union_expr,
"event_supporters.supporter_id=supporters.id"
)
end
if ['asc', 'desc'].include? query[:sort_name]
expr = expr.order_by(["supporters.name", query[:sort_name]])
end
if ['asc', 'desc'].include? query[:sort_contributed]
expr = expr.and_where("payments.sum > 0").order_by(["payments.sum", query[:sort_contributed]])
end
if ['asc', 'desc'].include? query[:sort_last_payment]
expr = expr.order_by(["payments.max_date", "#{query[:sort_last_payment].upcase} NULLS LAST"])
end
return expr
end
def self.for_export_enumerable(npo_id, query, chunk_limit=35000)
ParamValidation.new({npo_id: npo_id, query:query}, {npo_id: {required: true, is_int: true},
query: {required:true, is_hash: true}})
return QxQueryChunker.for_export_enumerable(chunk_limit) do |offset, limit, skip_header|
get_chunk_of_export(npo_id, query, offset, limit, skip_header)
end
end
def self.get_chunk_of_export(np_id, query, offset=nil, limit=nil, skip_header=false)
return QxQueryChunker.get_chunk_of_query(offset, limit, skip_header) do
expr = full_filter_expr(np_id, query)
selects = supporter_export_selections.concat([
'(payments.sum / 100)::money::text AS total_contributed',
'supporters.id AS id'
])
if query[:export_custom_fields]
# Add a select/csv-column for every custom field master for this nonprofit
# and add a left join for every custom field master
# eg if the npo has a custom field like Employer with id 99, then the query will be
# SELECT export_cfj_Employer.value AS Employer, ...
# FROM supporters
# LEFT JOIN custom_field_joins AS export_cfj_Employer ON export_cfj_Employer.supporter_id=supporters.id AND export_cfj_Employer.custom_field_master_id=99
# ...
ids = query[:export_custom_fields].split(',').map(&:to_i)
if ids.any?
cfms = Qx.select("name", "id").from(:custom_field_masters).where(nonprofit_id: np_id).and_where("id IN ($ids)", ids: ids).ex
cfms.compact.map do |cfm|
table_alias = "cfjs_#{cfm['name'].gsub(/\$/, "")}"
table_alias_quot = "\"#{table_alias}\""
field_join_subq = Qx.select("STRING_AGG(value, ',') as value", "supporter_id")
.from("custom_field_joins")
.join("custom_field_masters" , "custom_field_masters.id=custom_field_joins.custom_field_master_id")
.where("custom_field_masters.id=$id", id: cfm['id'])
.group_by(:supporter_id)
.as(table_alias)
expr.add_left_join(field_join_subq, "#{table_alias_quot}.supporter_id=supporters.id")
selects = selects.concat(["#{table_alias_quot}.value AS \"#{cfm['name']}\""])
end
end
end
get_last_payment_query = Qx.select('supporter_id', "MAX(date) AS date")
.from(:payments)
.group_by("supporter_id")
.as("last_payment")
expr.add_left_join(get_last_payment_query, 'last_payment.supporter_id = supporters.id')
selects = selects.concat(['last_payment.date as "Last Payment Received"'])
supporter_note_query = Qx.select("STRING_AGG(supporter_notes.created_at || ': ' || supporter_notes.content, '\r\n' ORDER BY supporter_notes.created_at DESC) as notes", "supporter_notes.supporter_id")
.from(:supporter_notes)
.group_by('supporter_notes.supporter_id')
.as("supporter_note_query")
expr.add_left_join(supporter_note_query, 'supporter_note_query.supporter_id=supporters.id')
selects = selects.concat(["supporter_note_query.notes AS notes"])
expr.select(selects)
end
end
# Give supp data for csv
def self.for_export(np_id, query)
expr = full_filter_expr(np_id, query)
selects = supporter_export_selections.concat([
'(payments.sum / 100)::money::text AS total_contributed',
'supporters.id AS id'
])
if query[:export_custom_fields]
# Add a select/csv-column for every custom field master for this nonprofit
# and add a left join for every custom field master
# eg if the npo has a custom field like Employer with id 99, then the query will be
# SELECT export_cfj_Employer.value AS Employer, ...
# FROM supporters
# LEFT JOIN custom_field_joins AS export_cfj_Employer ON export_cfj_Employer.supporter_id=supporters.id AND export_cfj_Employer.custom_field_master_id=99
# ...
ids = query[:export_custom_fields].split(',').map(&:to_i)
if ids.any?
cfms = Qx.select("name", "id").from(:custom_field_masters).where(nonprofit_id: np_id).and_where("id IN ($ids)", ids: ids).ex
cfms.compact.map do |cfm|
table_alias = "cfjs_#{cfm['name'].gsub(/\$/, "")}"
table_alias_quot = "\"#{table_alias}\""
field_join_subq = Qx.select("STRING_AGG(value, ',') as value", "supporter_id")
.from("custom_field_joins")
.join("custom_field_masters" , "custom_field_masters.id=custom_field_joins.custom_field_master_id")
.where("custom_field_masters.id=$id", id: cfm['id'])
.group_by(:supporter_id)
.as(table_alias)
expr.add_left_join(field_join_subq, "#{table_alias_quot}.supporter_id=supporters.id")
selects = selects.concat(["#{table_alias_quot}.value AS \"#{cfm['name']}\""])
end
end
end
supporter_note_query = Qx.select("STRING_AGG(supporter_notes.created_at || ': ' || supporter_notes.content, '\r\n' ORDER BY supporter_notes.created_at DESC) as notes", "supporter_notes.supporter_id")
.from(:supporter_notes)
.group_by('supporter_notes.supporter_id')
.as("supporter_note_query")
expr.add_left_join(supporter_note_query, 'supporter_note_query.supporter_id=supporters.id')
selects = selects.concat(["supporter_note_query.notes AS notes"])
expr.select(selects).execute(format: 'csv')
end
def self.supporter_export_selections
[
"substring(supporters.name from '^.+ ([^\s]+)$') AS \"Last Name\"",
"substring(supporters.name from '^(.+) [^\s]+$') AS \"First Name\"",
"supporters.name AS \"Full Name\"",
"supporters.organization AS \"Organization\"",
"supporters.email \"Email\"",
"supporters.phone \"Phone\"",
"supporters.address \"Address\"",
"supporters.city \"City\"",
"supporters.state_code \"State\"",
"supporters.zip_code \"Postal Code\"",
"supporters.country \"Country\"",
"supporters.anonymous \"Anonymous?\"",
"supporters.id \"Supporter ID\""
]
end
# Return an array of groups of ids, where sub-array is a group of duplicates
# Partial sql expression
def self.dupes_expr(np_id)
Qx.select("ARRAY_AGG(id) AS ids")
.from(:supporters)
.where("nonprofit_id=$id", id: np_id)
.and_where("deleted='f' OR deleted IS NULL")
.having('COUNT(id) > 1')
end
# Merge on exact supporter and email match
# Find all duplicate supporters by the email column
# returns array of arrays of ids
# (each sub-array is a group of duplicates)
def self.dupes_on_email(np_id)
dupes_expr(np_id)
.and_where("email IS NOT NULL")
.and_where("email != ''")
.group_by(:email)
.execute(format: 'csv')[1..-1]
.map(&:flatten)
end
# Find all duplicate supporters by the name column
def self.dupes_on_name(np_id)
dupes_expr(np_id)
.and_where("name IS NOT NULL")
.group_by(:name)
.execute(format: 'csv')[1..-1]
.map(&:flatten)
end
# Find all duplicate supporters that match on both name/email
# @return [Array[Array]] an array containing arrays of the ids of duplicate supporters
def self.dupes_on_name_and_email(np_id)
dupes_expr(np_id)
.and_where("name IS NOT NULL AND email IS NOT NULL AND email != ''")
.group_by("name, email")
.execute(format: 'csv')[1..-1]
.map(&:flatten)
end
# Create an export that lists donors with their total contributed amounts
# Underneath each donor, we separately list each individual payment
# Only including payments for the given year
def self.end_of_year_donor_report(np_id, year)
supporter_expr = Qexpr.new
.select( supporter_export_selections.concat(["(payments.sum / 100.0)::money::text AS \"Total Contributions #{year}\"", "supporters.id"]) )
.from(:supporters)
.join(Qexpr.new
.select("SUM(gross_amount)", "supporter_id")
.from(:payments)
.group_by(:supporter_id)
.where("date >= $date", date: "#{year}-01-01 00:00:00 UTC")
.where("date < $date", date: "#{year+1}-01-01 00:00:00 UTC")
.as(:payments), "payments.supporter_id=supporters.id")
.where('payments.sum > 25000')
.as('supporters')
Psql.execute_vectors(
Qexpr.new
.select(
"supporters.*",
'(payments.gross_amount / 100.0)::money::text AS "Donation Amount"',
'payments.date AS "Donation Date"',
'payments.towards AS "Designation"'
)
.from(:payments)
.join(supporter_expr, 'supporters.id = payments.supporter_id')
.where('payments.nonprofit_id = $id', id: np_id)
.where('payments.date >= $date', date: "#{year}-01-01 00:00:00 UTC")
.where('payments.date < $date', date: "#{year+1}-01-01 00:00:00 UTC")
.order_by("supporters.\"MAX Name\", payments.date DESC")
)
end
# returns an array of common selects for supporters
# which gets concated with an optional array of additional selects
# used for merging supporters, crm profile and info card
def self.profile_selects(arr = [])
["supporters.id",
"supporters.name",
"supporters.email",
"supporters.address",
"supporters.state_code",
"supporters.city",
"supporters.zip_code",
"supporters.country",
"supporters.organization",
"supporters.phone"] + arr
end
# used on crm profile and info card
def self.profile_payments_subquery
Qx.select("supporter_id", "SUM(gross_amount)", "COUNT(id) AS count")
.from("payments")
.group_by("supporter_id")
.as("payments")
end
# Get a large set of detailed info for a single supporter, to be displayed in
# the side panel details of the supporter listing after clicking a row.
def self.for_crm_profile(npo_id, ids)
selects = [
"supporters.created_at",
"supporters.imported_at",
"supporters.anonymous AS anon",
"supporters.is_unsubscribed_from_emails",
"COALESCE(MAX(payments.sum), 0) AS raised",
"COALESCE(MAX(payments.count), 0) AS payments_count",
"COALESCE(COUNT(recurring_donations.active), 0) AS recurring_donations_count",
"MAX(full_contact_infos.full_name) AS fc_full_name",
"MAX(full_contact_infos.age) AS fc_age",
"MAX(full_contact_infos.location_general) AS fc_location_general",
"MAX(full_contact_infos.websites) AS fc_websites"]
Qx.select(*QuerySupporters.profile_selects(selects))
.from("supporters")
.left_join(
["donations", "donations.supporter_id=supporters.id"],
["full_contact_infos", "full_contact_infos.supporter_id=supporters.id"],
["recurring_donations", "recurring_donations.donation_id=donations.id"],
[QuerySupporters.profile_payments_subquery, "payments.supporter_id=supporters.id"])
.group_by("supporters.id")
.where("supporters.id IN ($ids)", ids: ids)
.and_where("supporters.nonprofit_id = $id", id: npo_id)
.execute
end
def self.for_info_card(id)
selects = ["COALESCE(MAX(payments.sum), 0) AS raised"]
Qx.select(*QuerySupporters.profile_selects(selects))
.from("supporters")
.left_join([QuerySupporters.profile_payments_subquery, "payments.supporter_id=supporters.id"])
.group_by("supporters.id")
.where("supporters.id=$id", id: id)
.execute.first
end
def self.merge_data(ids)
Qx.select(*QuerySupporters.profile_selects)
.from("supporters")
.group_by("supporters.id")
.where("supporters.id IN ($ids)", ids: ids.split(','))
.execute
end
def self.year_aggregate_report(npo_id, time_range_params)
npo_id = npo_id.to_i
begin
min_date, max_date = get_min_or_max_dates_for_range(time_range_params)
rescue ArgumentError => e
raise ParamValidation::ValidationError.new(e.message, {})
end
ParamValidation.new({npo_id: npo_id}, {
npo_id: {required: true, is_integer: true}
})
aggregate_dons = %Q(
array_to_string(
array_agg(
payments.created_at::date || ' ' ||
(payments.gross_amount / 100)::text::money || ' ' ||
coalesce(payments.kind, '') || ' ' ||
coalesce(payments.towards, '')
ORDER BY payments.created_at DESC
),
'\n'
) AS "Payment History"
)
selects = supporter_export_selections.concat([
"SUM(payments.gross_amount / 100)::text::money AS \"Total Payments\"",
"MAX(payments.date)::date AS \"Last Payment Date\"",
"AVG(payments.gross_amount / 100)::text::money AS \"Average Payment\"",
aggregate_dons
])
return Qx.select(selects)
.from(:supporters)
.join("payments", "payments.supporter_id=supporters.id AND payments.date::date >= $min_date AND payments.date::date < $max_date",:min_date => min_date.to_date, :max_date => max_date.to_date )
.where('supporters.nonprofit_id=$id', id: npo_id)
.group_by("supporters.id")
.order_by("substring(trim(supporters.name) from '^.+ ([^\s]+)$')")
.execute(format: 'csv')
end
def self.get_min_or_max_dates_for_range(time_range_params)
begin
if (time_range_params[:year])
if (time_range_params[:year].is_a?(Integer))
return DateTime.new(time_range_params[:year], 1, 1), DateTime.new(time_range_params[:year]+1, 1, 1)
end
if (time_range_params[:year].is_a?(String))
wip = time_range_params[:year].to_i
return DateTime.new(wip, 1, 1), DateTime.new(wip+1, 1, 1)
end
end
if (time_range_params[:start])
wip = time_range_params[:start].is_a?(DateTime) ? time_range_params[:start] : nil
if (wip.nil? && time_range_params[:start].is_a?(Date))
wip = time_range_params[:start].to_datetime
end
if(wip.nil? && time_range_params[:start].is_a?(String))
wip = DateTime.parse(time_range_params[:start])
end
unless wip.nil?
return wip, wip + 1.year
end
end
raise ArgumentError.new("no valid time range provided")
rescue
raise ArgumentError.new("no valid time range provided")
end
end
def self.tag_joins(nonprofit_id, supporter_id)
Qx.select('tag_masters.id', 'tag_masters.name')
.from('tag_joins')
.left_join('tag_masters', 'tag_masters.id = tag_joins.tag_master_id')
.where(
['tag_joins.supporter_id = $id', id: supporter_id],
['coalesce(tag_masters.deleted, FALSE) = FALSE'],
['tag_masters.nonprofit_id = $id', id: nonprofit_id]
)
.execute
end
# this is inefficient, don't use in live code
def self.find_supporters_with_multiple_recurring_donations_evil_way(npo_id)
supporters = Supporter.where('supporters.nonprofit_id = ?', npo_id).includes(:recurring_donations)
supporters.select{|s| s.recurring_donations.length > 1}
end
# this is inefficient, don't use in live code
def self.find_supporters_with_multiple_active_recurring_donations_evil_way(npo_id)
supporters = Supporter.where('supporters.nonprofit_id = ?', npo_id).includes(:recurring_donations)
supporters.select{|s| s.recurring_donations.select{|rd| rd.active }.length > 1}
end
end