Fliendly_ID - 未显示网址

时间：2016-04-05 06:00:08

标签： ruby-on-rails-4 friendly-url will-paginate friendly-id pretty-urls

我是ROR的新手，正在开展一个小项目。最近我添加了友好的ID宝石，并按照文档中的说明进行操作。但我似乎无法使URL工作。我将友好ID添加到社区模型，这基本上是你的帖子模型。

路线代码：

log4j:WARN No appenders could be found for logger (org.jboss.logging).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Hibernate: insert into Vehicle (vehiclename, vehicle d type, vehicleid) values (?, 'Vehicle', ?)
Exception in thread "main" org.hibernate.exception.SQLGrammarException: ORA-00917: missing comma

    at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:82)
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:47)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:129)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
    at com.sun.proxy.$Proxy14.executeUpdate(Unknown Source)
    at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:56)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2849)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3290)
    at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:80)
    at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:272)
    at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:264)
    at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:186)
    at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326)
    at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
    at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1081)
    at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:315)
    at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
    at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
    at org.javab.hibernate.Transport.main(Transport.java:42)
Caused by: java.sql.SQLSyntaxErrorException: ORA-00917: missing comma

    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:440)
    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
    at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:837)
    at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:445)
    at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:191)
    at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:523)
    at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:207)
    at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:1010)
    at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1315)
    at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3576)
    at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3657)
    at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1350)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:122)
    ... 16 more

我甚至尝试过to_param来获取URL。但似乎没有任何效果。

控制器代码：

  <!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
 <session-factory>

    <!-- Database connection settings -->
    <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>

    <property name="connection.url">jdbc:oracle:thin:@sae.corpxxxxxxxxxxxe.com:1600/crmrtld</property>
    <property name="connection.username">XXXXXXXXX</property>
    <property name="connection.password">XXXXXXXXXXXXXXXXXr</property>

    <!-- JDBC connection pool (use the built-in) -->
    <property name="connection.pool_size">1</property>

    <!-- SQL dialect -->
    <property name="dialect">org.hibernate.dialect.Oracle10gDialect</property>

    <!-- Disable the second-level cache  -->
    <!-- <property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property> -->

    <!-- Echo all executed SQL to stdout -->
    <property name="show_sql">true</property>

    <!-- Drop and re-create the database schema on startup -->
    <property name="hbm2ddl.auto">update</property>

    <!-- Name the annotated Entity -->
    <mapping class="org.javab.Userdetails"></mapping>
      <mapping class="org.javab.Vehicle"></mapping>
        <mapping class="org.javab.Fourwheel"></mapping>
          <mapping class="org.javab.Twowheel"></mapping>
</session-factory>
</hibernate-configuration>

但如果我输入http://localhost:3000/communities/post.title这样的网址，我可以直接转到该帖子。这意味着slug已经创建并且它们正在运行。但我似乎无法将它们显示在URL上。 我尝试了许多排列和组合，但似乎没有任何效果。

非常感谢任何帮助。如果您需要任何其他特定代码，请告诉我。

仅供参考：迁移代码：

class Community < ActiveRecord::Base

extend FriendlyId
friendly_id :title, use: [:slugged, :history]




  validates :title, :length => { :minimum => 5 }

has_attached_file :post_image, :styles => 
           { :medium => "300x300>", :thumb => "100x100>", :large => "1280x720", :headline => "1280x720"}

validates_attachment_content_type :post_image, :content_type => ["image/jpg", "image/jpeg", "image/png", "image/gif"]

belongs_to :member 
has_many :comments
scope :newest_first, lambda { order("communities.created_at DESC")}
scope :without_community, lambda{|community| community ? {:conditions => ["community.id != ?", @community.id]} : {} }

# def to_param

#   "#{id}-#{title.parameterize}"

# end

end

Friendly_ID迁移代码：

class CommunitiesController < ApplicationController
  before_action :set_community, only: [:show, :edit, :update, :destroy]
  layout "community"
  before_filter :authenticate_member!, except: [:index, :show]
  require 'will_paginate/array'

  # GET /communities
  # GET /communities.json
  def index
    @communities = Community.newest_first.friendly.where(params[:id]).paginate(page: params[:page], per_page: 9)
  end

  # GET /communities/1
  # GET /communities/1.json
  def show
    @communities = Community.newest_first.friendly.where(params[:title]).paginate(page: params[:page], per_page: 5).where('id NOT IN (?)', @community.id)

  end

  # GET /communities/new
  def new
    @community = Community.new({:member_id => current_member.id})
  end

  # GET /communities/1/edit
  def edit
  end

  # POST /communities
  # POST /communities.json
  def create
    @community = Community.new(community_params)

    respond_to do |format|
      if @community.save
        format.html { redirect_to @community, notice: 'Post: #{@community.title.capitalize} was successfully created.' }
        format.json { render :show, status: :created, location: @community }
      else
        format.html { render :new }
        format.json { render json: @community.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /communities/1
  # PATCH/PUT /communities/1.json
  def update
    respond_to do |format|
      if @community.update(community_params)
        format.html { redirect_to @community, notice: 'Post: #{@community.title.capitalize} was successfully updated.' }
        format.json { render :show, status: :ok, location: @community }
      else
        format.html { render :edit }
        format.json { render json: @community.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /communities/1
  # DELETE /communities/1.json
  def destroy
    @community.destroy
    respond_to do |format|
      format.html { redirect_to communities_url, notice: 'Post: #{@community.title.capitalize} was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_community
      @community = Community.friendly.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def community_params
      params.require(:community).permit(:name,:post_image, :title, :content, :member_id)
    end
end

1 个答案:

答案 0 :(得分：0)

深入研究代码，发现slu is正在形成。只是URL没有正确链接。对链接进行了一些更改，以使用slugs而不是：id来使其正常工作。

非常感谢@uzaif

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