Question

我需要将一个大的csv文件导入到Rails项目中。我正在使用：红宝石2.1.2p95 Rails 4.1.1 mysql Ver 14.14

我尝试将此作为rake任务，首先在独立表中创建记录，获取这些记录的记录ID，并使用这些记录在外键中填充记录依赖表。

我试图创建独立的记录，并打印出这些外国id，首先在一个小的测试文件上运行。

但是，我收到这个文件结尾我不明白：

rake aborted!
SyntaxError: /Users/rickcasey/Projects/Programming/WikiFrac/wfrails/lib/tasks/import_partial.rake:94:
语法错误，意外的keyword_end，期望输入结束

这就是我的rake脚本：

#lib/tasks/import_partial.rake
require 'csv'

# Independent tables:
#  Companies
#  Counties
#  Fields
#  Formations
#  Gastypes
#  Wells
#  
# Dependendecies and foreign key field used to find correct record id:
#  Facilities.company_id -> Companies.company_name
#  Facilities.field_id   -> Fields.field_name
#  Facilities.county_id  -> Counties.county_name
#  Wells.gastype_id      -> GasTypes.gas_type

task :import_partial => :environment do    
    csv.foreach('public/partial.csv', :headers => true) do |row|

            # create records in independent tables

            # create the Company object
            this_company_name = row.to_hash.slice(*%w[county_name])
            if !(Company.exists?(company_name: this_company_name))
              Companies.create(row.to_hash.slice(*%w[company_name operator_num]))
            end
            thecompany = Company.find(this_company_name)
            company_id = thecompany.id

            # create the County object
            this_county_name = row.to_hash.slice(*%w[county])
            if !(County.exists?(county_name: this_county_name))
              Counties.create(county_name: this_county_name)
            end
            thecounty = County.find(this_county_name)
            county_id = thecounty.id

            # create the GasType object  
            this_gastype_name = row.to_hash.slice(*%w[gas_type])
            if !(GasType.exists?(gastype_name: this_gastype_name))
              GasType.create(gastype_name: this_gastype_name)
            end
            thegastype = GasType.find(this_gastype_name)
            gastype_id = thegastype.id


            # create the Field object
            this_field_name = row.to_hash.slice(*%w[field])
            if !(Field.exists?(field_name: this_field_name))
              Field.create(field_name: this_field_name, field_code: field_code)
            end
            thefield = Field.find(this_field_name)
            field_id = thefield.id

            # create the Formations object  
            this_formation_name = row.to_hash.slice(*%w[formation])
            if !(Formation.exists?(formation_name: this_formation_name))
              Counties.create(formation: this_formation_name, formation_code: formation_code)
            end
            theformation = Formation.find(this_formation_name)
            formation_id = theformation.id

            # debugging:
            puts "company_id:", company_id
            puts "county_id:", county_id
            puts "gastype_id:", gastype_id
            puts "field_id:", field_id

            # create records in dependent tables:
            # Use the record id's from above independent table create records containing foreign keys:

            #Facilities.create(row.to_hash.slice(*%w[dir_e_w dir_n_s dist_e_w dist_n_s facility_name facility_num ground_elev lat long meridian qtrqtr range sec twp utm_x utm_y])

            #Wells.create(row.to_hash.slice(*%w[api_county_code api_seq_num first_prod_date form_status_date formation_status sidetrack_num spud_date status_date td_date test_date wbmeasdepth wbtvd well_bore_status well_name])


        end
    end
end

任何建议都非常赞赏...

Answer 1

您的文件末尾有1个end个语句。

使用rake任务填充外键的最佳方法是什么？

1 个答案: