我是Grails的全新人物，从过去几天开始学习grails。我试图在我的演示Grails应用程序中使用searchable plugin添加搜索功能。我在用户搜索上成功添加了searchable plugins，用户可以搜索其他用户并关注他们。我这样做..
grails install-plugin searchable
Domain Person.groovy -
package org.grails.twitter
class Person {
transient springSecurityService
String realName
String username
String password
boolean enabled
boolean accountExpired
boolean accountLocked
boolean passwordExpired
static hasMany = [followed:Person, status:Status]
static searchable = [only: 'realName']
static constraints = {
username blank: false, unique: true
password blank: false
}
static mapping = {
password column: '`password`'
}
Set<Authority> getAuthorities() {
PersonAuthority.findAllByPerson(this).collect { it.authority } as Set
}
def beforeInsert() {
encodePassword()
}
def beforeUpdate() {
if (isDirty('password')) {
encodePassword()
}
}
protected void encodePassword() {
password = springSecurityService.encodePassword(password)
}
}
view / searchable / index.gsp ---
<html>
<head>
<meta name="layout" content="main" />
<title>What Are You Doing?</title>
<g:javascript library="jquery" plugin="jquery" />
</head>
<body>
<h1>Search For People To Follow</h1>
<div class="searchForm">
<g:form controller="searchable">
<g:textField name="q" value=""/>
</g:form>
</div>
<h1>What Are You Doing?</h1>
<div class="updateStatusForm">
<g:formRemote onSuccess="document.getElementById('messageArea').value='';" url="[action: 'updateStatus']" update="messageLists" name="updateStatusForm">
<g:textArea name="message" value="" id="messageArea" /><br/>
<g:submitButton name="Update Status" />
</g:formRemote>
</div>
<div id="messageLists">
<g:render template="messages" collection="${messages}" var="message"/>
</div>
</body>
</html>
工作正常。现在我的问题开始了。现在我想在我的Post域中添加这个可搜索的，用户也可以搜索帖子项目。我这样做......
Domain Post.groovy -
package groovypublish
class Post {
static hasMany = [comments:Comment]
String title
String teaser
String content
Date lastUpdated
Boolean published = false
SortedSet comments
static searchable = [only: 'title']
static constraints = {
title(nullable:false, blank:false, length:1..50)
teaser(length:0..100)
content(nullable:false, blank:false)
lastUpdated(nullable:true)
published(nullable:false)
}
}
这是表单视图
view / post / list.gsp -
------ some code -----
<g:form controller="searchable" class="navbar-search pull-left">
<g:textField name="q" value="" class="search-query" placeholder="Search Posts"/>
</g:form>
------ some code ------
现在，当我尝试按帖子标题搜索时，它显示错误。它会覆盖可搜索的操作。如何解决这个问题？
答案 0 :(得分：1)
您可以使用搜索功能实现自己的搜索方法，从搜索表单中调用控制器功能并执行搜索：
假设您有两种搜索表单：
<g:form controller="postsController" action="postAction" class="navbar-search pull-left">
<g:textField name="q" value="" class="search-query" placeholder="Search Posts"/>
</g:form>
和
<g:form controller="searchable">
<g:textField name="q" value=""/>
</g:form>
然后在PostCOntroller中你可以使用postAction方法来执行搜索：
def postAction (Integer max) {
params.max = Math.min(params.max ? params.int('max') : 10, 100)
params.sort = "id"
params.order = "desc"
if(params?.q){
def result = Post .search(params.q , order:"desc" )
return [searchResults: result.results, searchResultsCount: result.total, popup : params.popup?.toBoolean()]
}else{
[searchResults: Post .list(params), searchResultsCount: Post .count(), popup : params.popup?.toBoolean()]
}
同样你可以为另一个搜索使用不同的功能，如果你使用远程表格，那么你需要在搜索页面上有两个不同的div，你可以在那里渲染结果页面。
让我们说：
<g:formRemote name="postSearchForm" update="postSearchResultsDiv" url="[controller: 'post', action:'postAction' , params: [popup: false]]">
<label for="searchText">Search Post:</label>
<input name="q" type="text" id="searchText" class="input-medium search-query"/>
<input id="searchButton" type="submit" class="btn-info" value="Search"/>
</g:formRemote>
<div id="postSearchResultsDiv">--Your search result for the form will display here--</div>
此远程表单将在您的控制器中调用 postAction 方法，您可以在控制器的视图文件夹中包含 postAction.gsp 页面并将结果打印出来。
在您的搜索页面上， postSearchResultsDiv 会有搜索结果（postAction GSP页面输出）
答案 1 :(得分：0)
我解决了自己的问题...... 我这样做了..
PostController ---
import org.compass.core.engine.SearchEngineQueryParseException
class PostController
{
def searchableService
def searchpost = {
if (!params.q?.trim()) {
return [:]
}
try {
return [searchResult: searchableService.search(params.q, params)]
} catch (SearchEngineQueryParseException ex) {
return [parseException: true]
}
render(view:'searchpost')
}
.......
}
搜索表单---
<g:form controller="post" action="searchpost" class="navbar-search pull-left">
<g:textField name="q" value="" class="search-query" placeholder="Search Posts"/>
</g:form>
searchpost.gsp //显示结果
<html>
<head>
<r:require modules="bootstrap"/>
<meta name="layout" content="main"/>
</head>
<body>
<g:render template="/layouts/header" />
<div class="well">
<g:each var="post" in="${searchResult?.results}">
<div>
<h2>${post.title}</h2>
<p>${post.teaser}</p>
<p>Last Updated: ${post.lastUpdated}</p>
<g:link controller="post" action="view" id="${post.id}" class="btn btn-success">
View this post
</g:link>
<g:if test="${post.author == currentLoggedInUser }">
<g:link controller="post" action="edit" id="${post.id}" class="btn btn-danger">
Edit this post
</g:link>
<g:actionSubmit action="delete" value="${message(code: 'default.button.delete.label', default: 'Delete')}" onclick="return confirm('${message(code: 'default.button.delete.confirm.message', default: 'Are you sure?')}');" class="btn btn-inverse" />
</g:if>
<g:form>
<g:hiddenField name="id" value="${post?.id}" />
</g:form>
</div>
</g:each>
</div>
</body>
</html>
它有效：）