我有三种模式：用户，公司和收入。我想加入公司和收入模型，以便发布已加入的模型结果。有人可以指出我正确的方向如何加入这些表格并公布结果？注意，公司和收入模型可以通过unique_id号码加入。以下是我的一些代码：
收入模式
class Firm < ActiveRecord::Base
belongs_to :user
def self.import(file)
CSV.foreach(file.path, headers: true) do |row|
Firm.create! row.to_hash
end
end
end
公司模式
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
before_save { self.email = email.downcase }
has_many :revenues
has_many :firms
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable,
:session_limitable, :confirmable
validates :name, :lastname, :industry, :company, :title, :address, :state, :city, :zip, presence: true
validates :phone, presence: true, length: { maximum: 11 }
end
用户模型
class User＆lt;的ActiveRecord ::基
class CreateRevenues < ActiveRecord::Migration
def change
create_table :revenues do |t|
t.integer :unique_id
t.integer :revenue
t.integer :profit
t.references :user, index: true, foreign_key: true
t.timestamps null: false
end
end
end
收入数据库
class CreateFirms < ActiveRecord::Migration
def change
create_table :firms do |t|
t.integer :unique_id
t.string :name
t.string :state
t.string :city
t.references :user, index: true, foreign_key: true
t.timestamps null: false
end
end
end
公司数据库
<h2>Firm Data</h2>
<body>
<table>
<tr>
<th>unique_id</th>
<th>name</th>
<th>state</th>
<th>city</th>
</tr>
<body>
<% @firms.each do |firm| %>
<tr>
<td><%= firm.unique_id %> </td>
<td><%= firm.name %> </td>
<td><%= firm.state %> </td>
<td><%= firm.city %> </td>
<tr>
<% end %>
</table>
</body>
<h2>Revenue Data</h2>
<body>
<table>
<tr>
<th>unique_id</th>
<th>revenue</th>
<th>profit</th>
</tr>
<body>
<% @revenues.each do |rev| %>
<tr>
<td><%= rev.unique_id %> </td>
<td><%= rev.revenue %> </td>
<td><%= rev.profit %> </td>
<tr>
<% end %>
</table>
</body>
查看
# Prompuser for text file to analyze
filename = input("Enter a valid text file to analyze: ")
# Open file and read it line by line
s = open(filename, 'r').read().lower()
# List of stop words that are not inportant to the meaning of the content
# These words will not be counted in the number of characters, or words.
stopwords = ['a', 'about', 'above', 'across', 'after', 'afterwards']
stopwords += ['again', 'against', 'all', 'almost', 'alone', 'along']
stopwords += ['already', 'also', 'although', 'always', 'am', 'among']
stopwords += ['amongst', 'amoungst', 'amount', 'an', 'and', 'another']
stopwords += ['any', 'anyhow', 'anyone', 'anything', 'anyway', 'anywhere']
stopwords += ['are', 'around', 'as', 'at', 'back', 'be', 'became']
stopwords += ['because', 'become', 'becomes', 'becoming', 'been']
stopwords += ['before', 'beforehand', 'behind', 'being', 'below']
stopwords += ['beside', 'besides', 'between', 'beyond', 'bill', 'both']
stopwords += ['bottom', 'but', 'by', 'call', 'can', 'cannot', 'cant']
stopwords += ['co', 'computer', 'con', 'could', 'couldnt', 'cry', 'de']
stopwords += ['describe', 'detail', 'did', 'do', 'done', 'down', 'due']
stopwords += ['during', 'each', 'eg', 'eight', 'either', 'eleven', 'else']
stopwords += ['elsewhere', 'empty', 'enough', 'etc', 'even', 'ever']
stopwords += ['every', 'everyone', 'everything', 'everywhere', 'except']
stopwords += ['few', 'fifteen', 'fifty', 'fill', 'find', 'fire']
stopwords += ['five', 'for', 'former', 'formerly', 'forty', 'found']
stopwords += ['four', 'from', 'front', 'full', 'further', 'get', 'give']
stopwords += ['go', 'had', 'has', 'hasnt', 'have', 'he', 'hence', 'her']
stopwords += ['here', 'hereafter', 'hereby', 'herein', 'hereupon', 'hers']
stopwords += ['herself', 'him', 'himself', 'his', 'how', 'however']
stopwords += ['hundred', 'i', 'ie', 'if', 'in', 'inc', 'indeed']
stopwords += ['interest', 'into', 'is', 'it', 'its', 'itself', 'keep']
stopwords += ['last', 'latter', 'latterly', 'least', 'less', 'ltd', 'made']
stopwords += ['many', 'may', 'me', 'meanwhile', 'might', 'mill', 'mine']
stopwords += ['more', 'moreover', 'most', 'mostly', 'move', 'much']
stopwords += ['must', 'my', 'myself', 'name', 'namely', 'neither', 'never']
stopwords += ['nevertheless', 'next', 'nine', 'no', 'nobody', 'none']
stopwords += ['noone', 'nor', 'not', 'nothing', 'now', 'nowhere', 'of']
stopwords += ['off', 'often', 'on','once', 'one', 'only', 'onto', 'or']
stopwords += ['other', 'others', 'otherwise', 'our', 'ours', 'ourselves']
stopwords += ['out', 'over', 'own', 'part', 'per', 'perhaps', 'please']
stopwords += ['put', 'rather', 're', 's', 'same', 'see', 'seem', 'seemed']
stopwords += ['seeming', 'seems', 'serious', 'several', 'she', 'should']
stopwords += ['show', 'side', 'since', 'sincere', 'six', 'sixty', 'so']
stopwords += ['some', 'somehow', 'someone', 'something', 'sometime']
stopwords += ['sometimes', 'somewhere', 'still', 'such', 'take']
stopwords += ['ten', 'than', 'that', 'the', 'their', 'them', 'themselves']
stopwords += ['then', 'thence', 'there', 'thereafter', 'thereby']
stopwords += ['therefore', 'therein', 'thereupon', 'these', 'they']
stopwords += ['thick', 'thin', 'third', 'this', 'those', 'though', 'three']
stopwords += ['three', 'through', 'throughout', 'thru', 'thus', 'to']
stopwords += ['together', 'too', 'top', 'toward', 'towards', 'twelve']
stopwords += ['twenty', 'two', 'un', 'under', 'until', 'up', 'upon']
stopwords += ['us', 'very', 'via', 'was', 'we', 'well', 'were', 'what']
stopwords += ['whatever', 'when', 'whence', 'whenever', 'where']
stopwords += ['whereafter', 'whereas', 'whereby', 'wherein', 'whereupon']
stopwords += ['wherever', 'whether', 'which', 'while', 'whither', 'who']
stopwords += ['whoever', 'whole', 'whom', 'whose', 'why', 'will', 'with']
stopwords += ['within', 'without', 'would', 'yet', 'you', 'your']
stopwords += ['yours', 'yourself', 'the', '—', 'The', '9', '5', 'just']
# count characters
num_chars = len(s)
# count lines
num_lines = s.count('\n')
# Split the words in the file
words = s.split()
# Create empty dictionary
d = {}
for i in d:
i = i.replace('.','')
i = i.replace(',','')
i = i.replace('\'','')
d.append(i.split())
# Add words to dictionary if they are not in it already.
for w in words:
if w in d:
#increase the count of each word added to the dictionary by 1 each time it appears
d[w] += 1
else:
d[w] = 1
# Find the sum of each word's count in the dictionary. Drop the stopwords.
num_words = sum(d[w] for w in d if w not in stopwords)
# Create a list of words and their counts from file
# in the form number of occurrence word count word
lst = [(d[w], w) for w in d if w not in stopwords]
# Sort the list of words by the count of the word
lst.sort()
# Sort the word list from greatest to least
lst.reverse()
# Print number of characters, number of lines rea, then number of words
# that were counted minus the stop words.
print('Your input file has characters = ' + str(num_chars))
print('Your input file has num_lines = ' + str(num_lines))
print('Your input file has num_words = ' + str(num_words))
# Print the top 30 most frequent words
print('\n The 30 most frequent words are \n')
# Start list at 1, the most most frequent word
i = 1
# Create list for the first 30 frequent words
for count, word in lst[:30]:
# Create list with the number of occurrence the word count then the word
print('%2s. %4s %s' % (i, count, word))
# Increase the list number by 1 after each entry
i += 1
答案 0 :(得分：2)
根据您的问题和评论，我认为建立关系如下：
用户 has_many 公司（公司）。一家公司 has_on e收入。用户 has_many 收入到公司。
# app/models/user.rb
class User < ActiveRecord::Base
has_many :firms
has_many :revenues, through :firms
end
# app/models/firm.rb
class Firm < ActiveRecord::Base
has_one :revenue
end
# app/models/revenue.rb
class Revenue < ActiveRecord::Base
belongs_to :firm
end
不是在unique_id和firms表中存储revenues，最好在收入中使用foreign_key，例如firm_id。
相应的迁移是：
class CreateFirm < ActiveRecord::Migration
def change
create_table :firm do |t|
t.string :name
t.string :state
t.string :city
t.timestamps null: false
end
end
end
class CreateRevenue < ActiveRecord::Migration
def change
create_table :firm do |t|
t.belongs_to :firm, index: true
t.integer :revenue
t.integer :profit
t.timestamps null: false
end
end
end
这样，您就可以使用firm.revenue.profit在profit视图中显示app/views/firms/show.html.erb的值。
查看您的模型和迁移语法，似乎您没有使用Rails 5.您可以找到有关has_one关系here的Rails 4.2文档。