Gmaps4rails循环通过数组 [英] Gmaps4rails looping through array
问题描述
我有一个数组,有30多个地点,我想在我的地图上显示。但是,我还没有找到一个源,演示如何迭代数组,以便标记出现在地图上,而是选择严格硬编码地图lat / long值。
I have an array with 30+ locations I would like to display on my map. However, I have not found one source that demonstrates how to iterate through an array so that the markers appear on a map, but instead opt to strictly hard code the map lat/long values.
例如,这是我目前的代码,但它返回错误:
For example, this is the code I have at present but it returns errors:
allLocations = root.table.rows().data()
root.forMap = []
for aLocation in allLocations
root.forMap.push(aLocation[9] + ', ' + aLocation[10])
$('#multi_markers').map ->
handler = Gmaps.build("Google")
handler.buildMap
internal:
id: "multi_markers"
, ->
markers = handler.addMarkers(root.forMap)
handler.bounds.extendWith markers
handler.fitMapToBounds()
注意:我不能简单地使用ruby方法,因为表必须也与.js.coffee文件中的DataTable数据交互。
Note: I cannot simply use the ruby methods because the table must also interact with DataTable data within the .js.coffee file.
如何在gmaps4rails方法中循环数组?
How can I loop through the array within the gmaps4rails method?
推荐答案
c $ c> handler.addMarkers 使用数组为什么不只是使用jQuery.map并建立一个标记数组?
Since handler.addMarkers
takes an array why not just use jQuery.map and build an array of markers beforehand?
all_locations = $.map root.table.rows().data(), (row)->
return {
lat: row[9],
lng: row[10]
}
$('#multi_markers').map ->
handler = Gmaps.build("Google")
handler.buildMap
internal:
id: "multi_markers"
, ->
markers = handler.addMarkers(allLocations)
handler.bounds.extendWith markers
handler.fitMapToBounds()
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