google-maps - 如何将 Salesforce 与 Google map 集成？

Question

如何将 Salesforce 与 Google map 集成？我只是在寻找有关如何...

在 Salesforce 中搜索联系人

在谷歌地图上绘制它们。

Answer 1

编辑 :

感谢 tggagne的评论我已经意识到人们仍然看到这个答案。这里的代码已经有 2.5 年的历史了。如果您想查看它 - 检查编辑历史记录。

很多同时发生了变化，创建了更多混搭示例。其中最重要的是 Cory Cowgill 的“SF Bus Radar”(github，youtube)应用程序(我认为是在 Dreamforce'11 上创建的)。

尽管如此 - 这是我更新的示例，其中包含服务器端地理编码、地理定位类型的新字段和 JSON 解析器的使用。

它尝试将地理编码结果缓存在联系人记录中。请记住，它可能不是“生产就绪”(没有 Google Business API key = 因为我们所有的请求都来自同一个 Salesforce IP 服务器池 there might be error messages)。这就是为什么我也离开了客户端地理编码。




在 checkout 之前，您需要在环境中进行 2 处更改:

添加指向 Remote Site Setting 的“https://maps.googleapis.com”启用来自 Apex

的标注

在设置 -> 自定义 -> 联系人 -> 字段中添加字段“位置”。类型应为“地理位置”。我选择了显示为小数和 6 位小数的精度。

public with sharing class mapController {
public String searchText {get;set;}
public List<Contact> contacts{get; private set;}

public static final String GEOCODING_URI_BASE = 'https://maps.googleapis.com/maps/api/geocode/json?sensor=false&address=';

// For purposes of this demo I'll geocode only couple of addresses server-side. Real code can use the commented out value.
public static final Integer MAX_CALLOUTS_FROM_APEX = 3; // Limits.getLimitCallouts()

public mapController(){
    searchText = ApexPages.currentPage().getParameters().get('q');
}

public void find() {
    if(searchText != null && searchText.length() > 1){
        List<List<SObject>> results = [FIND :('*' + searchText + '*') IN ALL FIELDS RETURNING 
            Contact (Id, Name, Email, Account.Name,
                MailingStreet, MailingCity, MailingPostalCode, MailingState, MailingCountry, 
                Location__Latitude__s, Location__Longitude__s)
            ];
        contacts = (List<Contact>)results[0];
        if(contacts.isEmpty()){
            ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.INFO, 'No matches for "' + searchText + '"'));
        } else {
            serverSideGeocode();
        }
    } else {
        if(contacts != null) {
            contacts.clear();
        }
        ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.INFO, 'Please provide at least 2 characters for the search.'));
    }
}

public void clearGeocodedData(){
    for(Contact c : contacts){
        c.Location__Latitude__s = c.Location__Longitude__s = null;
    }
    Database.update(contacts, false);
    contacts.clear();
}

public String getContactsJson(){
    return JSON.serialize(contacts);
}
public String getDebugContactsJson(){
    return JSON.serializePretty(contacts);
}

private void serverSideGeocode(){
    List<Contact> contactsToUpdate = new List<Contact>();
    Http h = new Http();  
    HttpRequest req = new HttpRequest();
    req.setMethod('GET'); 
    req.setTimeout(10000);

    for(Contact c : contacts){
        if((c.Location__Latitude__s == null || c.Location__Longitude__s == null)){
            String address = c.MailingStreet != null ? c.MailingStreet + ' ' : '' +
                c.MailingCity != null ? c.MailingCity + ' ' : '' +
                c.MailingState != null ? c.MailingState + ' ' : '' +
                c.MailingPostalCode != null ? c.MailingPostalCode + ' ' : '' +
                c.MailingCountry != null ? c.MailingCountry : '';
            if(address != ''){
                req.setEndpoint(GEOCODING_URI_BASE + EncodingUtil.urlEncode(address, 'UTF-8'));
                try{
                    HttpResponse res = h.send(req);
                    GResponse gr = (GResponse) JSON.deserialize(res.getBody(), mapController.GResponse.class);
                    if(gr.status == 'OK'){
                        LatLng ll = gr.results[0].geometry.location;
                        c.Location__Latitude__s = ll.lat;
                        c.Location__Longitude__s = ll.lng;
                        contactsToUpdate.add(c);
                    } else {
                        ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.ERROR, 'Geocoding of "' + address + '" failed:' + gr.status));
                    }
                }catch(Exception e){
                    ApexPages.addMessages(e);
                }
            }
            // Bail out if we've reached limit of callouts (not all contacts might have been processed).
            if(Limits.getCallouts() == MAX_CALLOUTS_FROM_APEX) {
                break;
            }
        }
    }
    if(!contactsToUpdate.isEmpty()) {
        Database.update(contactsToUpdate, false); // some data in Developer editions is invalid (on purpose I think).
        // If update fails because "j.davis@expressl&amp;t.net" is not a valid Email, I want the rest to succeed
    }
}

// Helper class - template into which results of lookup will be parsed. Some fields are skipped!
// Visit https://developers.google.com/maps/documentation/geocoding/#Results if you need to create full mapping.
public class GResponse{
    public String status;
    public GComponents[] results;
}
public class GComponents{
   public String formatted_address;
   public GGeometry geometry;
}
public class GGeometry {
    public LatLng location;
}
public class LatLng{
    public Double lat, lng;
}
}

<apex:page controller="mapController" tabStyle="Contact" action="{!find}" id="page">
    <head>
        <style>
            div #map_canvas { height: 400px; }
        </style>
        <script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?sensor=false"></script>
    </head>
    <apex:sectionHeader title="Hello StackOverflow!" subtitle="Contact full text search + Google Maps integration" />
    <apex:pageMessages />
    <apex:form id="form">
        <apex:pageBlock id="searchBlock">
            <apex:inputText value="{!searchText}" />
            <apex:commandButton value="Search" action="{!find}"/>
            <p>Examples: <a href="/apex/{!$CurrentPage.Name}?q=USA">"USA"</a>, "Singapore", "Uni", "(336) 222-7000". If it works in the global search box, it will work here.</p>
        </apex:pageBlock>
        <apex:pageBlock title="Found {!contacts.size} Contact(s)..." rendered="{!NOT(ISNULL(contacts)) && contacts.size > 0}" id="resultsBlock">
            <apex:pageBlockButtons location="top">
                <apex:commandButton value="Clear cached locations" title="Click if you want to set 'null' as geolocation info for all these contacts" action="{!clearGeocodedData}" />
            </apex:pageBlockButtons>
            <apex:pageBlockTable value="{!contacts}" var="c" id="contacts">
                <apex:column headerValue="{!$ObjectType.Contact.fields.Name.label}">
                    <apex:outputLink value="../{!c.Id}">{!c.Name}</apex:outputLink>
                </apex:column>
                <apex:column headerValue="Address">
                    {!c.MailingStreet} {!c.MailingCity} {!c.MailingCountry}
                </apex:column>
                <apex:column value="{!c.Account.Name}"/>
                <apex:column headerValue="Location (retrieved from DB or geocoded server-side)">
                    {!c.Location__Latitude__s}, {!c.Location__Longitude__s}
                </apex:column>
            </apex:pageBlockTable>
            <apex:pageBlockSection columns="1" id="mapSection">
                <div id="map_canvas" />
            </apex:pageBlockSection>
            <apex:pageBlockSection title="Click to show/hide what was geocoded server-side and passed to JS for further manipulation" columns="1" id="debugSection">
                <pre>{!debugContactsJson}</pre>
            </apex:pageBlockSection>
            <pre id="log"></pre>
        </apex:pageBlock>
    </apex:form>
    <script type="text/javascript">
    twistSection(document.getElementById('page:form:resultsBlock:debugSection').childNodes[0].childNodes[0]); // initially hide the debug section

    var contacts = {!contactsJson};    // Array of contact data, some of them might have lat/long info, some we'll have to geocode client side
    var coords = [];                   // Just the latitude/longitude for each contact
    var requestCounter = 0;

    var markers = [];                  // Red things we pin to the map.
    var balloon = new google.maps.InfoWindow(); // Comic-like baloon that floats over markers.

    function geocodeClientSide() {
        for(var i = 0; i < contacts.length; i++) {
            if(contacts[i].Location__Latitude__s != null && contacts[i].Location__Longitude__s != null) {
                coords.push(new google.maps.LatLng(contacts[i].Location__Latitude__s, contacts[i].Location__Longitude__s));
            } else {
                ++requestCounter;
                var address = contacts[i].MailingStreet + ' ' + contacts[i].MailingCity + ' ' + contacts[i].MailingCountry;
                var geocoder = new google.maps.Geocoder();
                if (geocoder) {
                    geocoder.geocode({'address':address}, function (results, status) {
                        if (status == google.maps.GeocoderStatus.OK) {
                            coords.push(results[0].geometry.location);
                        } else {
                            var pTag = document.createElement("p");
                            pTag.innerHTML = status;
                            document.getElementById('log').appendChild(pTag);
                        }
                        if(--requestCounter == 0) {
                            drawMap();
                        }
                    });
                }
            }
        }
        // It could be the case that all was geocoded on server side (or simply retrieved from database).
        // So if we're lucky - just proceed to drawing the map.
        if(requestCounter == 0) {
            drawMap();
        }
    }

    function drawMap(){
        var mapOptions = {
            center: coords[0],
            zoom: 3,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        var map = new google.maps.Map(document.getElementById("map_canvas"),  mapOptions);

        for(var i = 0; i < coords.length; ++i){
            var marker = new google.maps.Marker({map: map, position: coords[i], title:contacts[i].Name, zIndex:i});

            google.maps.event.addListener(marker, 'click', function() {
                var index = this.zIndex;
                balloon.content = '<b>'+contacts[index].Name + '</b><br/>' + contacts[index].Account.Name + '<br/>' + contacts[index].Email;
                balloon.open(map,this);
            });
            markers.push(marker);
        }
    }

    geocodeClientSide();
    </script>
</apex:page>