ouyeel update #147
ouyeel update #147
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| # frozen_string_literal: true | |||
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| class Api::DecodeTransactionsController < ApplicationController | |||
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controller里是些后端API逻辑的地方，controller里的一个公共方法，对应一个接口。
在路由routes文件里能看到具体的定义。
例如这个get "decode_transactions/:tx_hash", to: "decode_transactions#show"，这个"decode_transactions/:tx_hash" GET的URl，对应的是decode_transactions controller里的show方法，tx_hash在方法里面是params[:tx_hash]
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| class Api::DecodeTransactionsController < ApplicationController | ||
| def show | ||
| decode_tx = DecodeTransaction.find_by(tx_hash: params[:tx_hash]) |
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从数据库中查找tx_hash为params[:tx_hash]的decode_tx，这里只找一条记录，limit 1
| decode_tx = DecodeTransaction.find_by(tx_hash: params[:tx_hash]) | ||
| unless decode_tx | ||
| return render json: { error_code: 40200, error_message: "不存在的交易或正在排队解析" } | ||
| end |
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找不到则返回 json结构
{ error_code: 40200, error_message: "不存在的交易或正在排队解析" }
| return render json: { error_code: 40200, error_message: "不存在的交易或正在排队解析" } | ||
| end | ||
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| render json: { |
| contract_name: decode_tx.contract_name, | ||
| api_name: decode_tx.api_name, | ||
| request_args: decode_tx.request_args, | ||
| logs: decode_tx.decode_logs.map{|log|log["info"]}, |
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这个map跟python或者racket里的map一个意思，遍历list并执行lambda函数。
| before_action :validate_platform | ||
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| def hold_list | ||
| open_tongbao = OpenTongbao.find_by(system_id: params[:systemId], tongbao_id: params[:tongbao_id]) |
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| class Api::FrontEndController < ApplicationController | ||
| # before_action :validate_sign | ||
| before_action :validate_platform |
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在所有的方法前，先调用validate_platform方法，这个validate_platform在ApplicationController里有定义。
可以理解为是一个filter
| return render({json: {error_code: 40027, error_message: "平台还未审核"}}) if open_tongbao.platform_time.blank? | ||
| return render({json: {error_code: 40028, error_message: "非快速开立，核心企业还未复核"}}) if !open_tongbao.is_quick && open_tongbao.enterprise_time.blank? | ||
| return render({json: {error_code: 40029, error_message: "供应商未接收"}}) if open_tongbao.receive_time.blank? | ||
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这里是以一系列判断，如果不满足条件，直接返回错误。有if 和 unless两种。
present?表示是否存在，和blank？是相反的，语法糖可以看下表。
https://ruby-china.org/topics/24675
| return render({json: {error_code: 40028, error_message: "非快速开立，核心企业还未复核"}}) if !open_tongbao.is_quick && open_tongbao.enterprise_time.blank? | ||
| return render({json: {error_code: 40029, error_message: "供应商未接收"}}) if open_tongbao.receive_time.blank? | ||
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| list = open_tongbao.tongbaos.order(timestamp: :desc).map do |tongbao| |
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