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Sync.coffee
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Sync.coffee
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class Sync extends Backbone.Model
initialize: ->
@set
_id: "SyncLog"
url: "/sync"
target: -> Coconut.config.cloud_url()
last_send: =>
return @get("last_send_result")
was_last_send_successful: =>
return false if @get("last_send_error") is true
# even if last_send_error was false need to check log
last_send_data = @last_send()
return false unless last_send_data?
return true if last_send_data.no_changes? and last_send_data.no_changes is true
return (last_send_data.docs_read is last_send_data.docs_written) and last_send_data.doc_write_failures is 0
last_send_time: =>
result = @get("last_send_time")
if result
return moment(@get("last_send_time")).fromNow()
else
return "never"
was_last_get_successful: =>
return @get "last_get_success"
last_get_time: =>
result = @get("last_get_time")
if result
return moment(@get("last_get_time")).fromNow()
else
return "never"
sendToCloud: (options) ->
@fetch
error: (error) => @log "Unable to fetch Sync doc: #{JSON.stringify(error)}"
success: =>
@log "Checking for internet. (Is #{Coconut.config.cloud_url()} is reachable?) Please wait."
$.ajax
dataType: "jsonp"
url: Coconut.config.cloud_url()
error: (error) =>
@log "ERROR! #{Coconut.config.cloud_url()} is not reachable. Either the internet is not working or the site is down: #{JSON.stringify(error)}"
options.error()
@save
last_send_error: true
success: =>
@log "#{Coconut.config.cloud_url()} is reachable, so internet is available."
@log "Creating list of all results on the tablet. Please wait."
$.couch.db(Coconut.config.database_name()).view "#{Coconut.config.design_doc_name()}/results",
include_docs: false
error: (result) =>
@log "Could not retrieve list of results: #{JSON.stringify(error)}"
options.error()
@save
last_send_error: true
success: (result) =>
@log "Synchronizing #{result.rows.length} results. Please wait."
resultIDs = _.pluck result.rows, "id"
$.couch.db(Coconut.config.database_name()).saveDoc
collection: "log"
action: "sendToCloud"
user: User.currentUser.id
time: moment().format(Coconut.config.get "date_format")
,
error: (error) => @log "Could not create log file: #{JSON.stringify(error)}"
success: =>
$.couch.replicate(
Coconut.config.database_name(),
Coconut.config.cloud_url_with_credentials(),
success: (result) =>
@log "Send data finished: created, updated or deleted #{result.docs_written} results on the server."
@save
last_send_result: result
last_send_error: false
last_send_time: new Date().getTime()
@sendLogMessagesToCloud
success: ->
options.success()
error: (error) ->
@save
last_send_error: true
options.error(error)
,
doc_ids: resultIDs
)
Coconut.menuView.checkReplicationStatus()
log: (message) =>
Coconut.debug message
# @save
# last_get_log: @get("last_get_log") + message
sendLogMessagesToCloud: (options) ->
@fetch
error: (error) => @log "Unable to fetch Sync doc: #{JSON.stringify(error)}"
success: =>
$.couch.db(Coconut.config.database_name()).view "#{Coconut.config.design_doc_name()}/byCollection",
key: "log"
include_docs: false
error: (error) =>
@log "Could not retrieve list of log entries: #{JSON.stringify(error)}"
options.error(error)
@save
last_send_error: true
success: (result) =>
@log "Sending #{result.rows.length} log entries. Please wait."
logIDs = _.pluck result.rows, "id"
$.couch.replicate(
Coconut.config.database_name(),
Coconut.config.cloud_url_with_credentials(),
success: (result) =>
@save
last_send_result: result
last_send_error: false
last_send_time: new Date().getTime()
@log "Successfully sent #{result.docs_written} log messages to the server."
options.success()
error: (error) ->
@log "Could not send log messages to the server: #{JSON.stringify(error)}"
@save
last_send_error: true
options.error?(error)
,
doc_ids: logIDs
)
Coconut.menuView.checkReplicationStatus()
getFromCloud: (options) =>
@fetch
error: (error) => @log "Unable to fetch Sync doc: #{JSON.stringify(error)}"
success: =>
@log "Checking that #{Coconut.config.cloud_url()} is reachable. Please wait."
$.ajax
dataType: "jsonp"
url: Coconut.config.cloud_url()
error: (error) =>
@log "ERROR! #{Coconut.config.cloud_url()} is not reachable. Either the internet is not working or the site is down: #{JSON.stringify(error)}"
options.error?(error)
success: =>
@log "#{Coconut.config.cloud_url()} is reachable, so internet is available."
@fetch
success: =>
@getNewNotifications
success: =>
# Get Household data for all households with shehias in user's district.
$.couch.login
name: Coconut.config.get "local_couchdb_admin_username"
password: Coconut.config.get "local_couchdb_admin_password"
error: (error) =>
@log "ERROR logging in as local admin: #{JSON.stringify(error)}"
options?.error?()
success: =>
@log "Updating users, forms and the design document. Please wait."
@replicateApplicationDocs
error: (error) =>
$.couch.logout()
@log "ERROR updating application: #{JSON.stringify(error)}"
@save
last_get_success: false
options?.error?(error)
success: =>
$.couch.logout()
$.couch.db(Coconut.config.database_name()).saveDoc
collection: "log"
action: "getFromCloud"
user: User.currentUser.id
time: moment().format(Coconut.config.get "date_format")
,
error: (error) => @log "Could not create log file #{JSON.stringify(error)}"
success: =>
@log "Sending log messages to cloud."
@sendLogMessagesToCloud
success: =>
@log "Finished, refreshing app in 5 seconds..."
@fetch
error: (error) => @log "Unable to fetch Sync doc: #{JSON.stringify(error)}"
success: =>
@save
last_get_success: true
last_get_time: new Date().getTime()
options?.success?()
_.delay ->
document.location.reload()
, 5000
getNewNotifications: (options) ->
@log "Looking for most recent Case Notification on tablet. Please wait."
$.couch.db(Coconut.config.database_name()).view "#{Coconut.config.design_doc_name()}/rawNotificationsConvertedToCaseNotifications",
descending: true
include_docs: true
limit: 1
error: (error) => @log "Unable to find the the most recent case notification: #{JSON.stringify(error)}"
success: (result) =>
mostRecentNotification = result.rows?[0]?.doc.date || (new moment).subtract('months',3).format(Coconut.config.get("date_format"))
url = "#{Coconut.config.cloud_url_with_credentials()}/_design/#{Coconut.config.design_doc_name()}/_view/rawNotificationsNotConvertedToCaseNotifications?&ascending=true&include_docs=true"
url += "&startkey=\"#{mostRecentNotification}\"&skip=1" if mostRecentNotification?
district = User.currentUser.get("district")
shehias = GeoHierarchy.findAllShehiaNamesFor(district, "DISTRICT")
shehias = [] unless district
@log "Looking for USSD notifications without Case Notifications #{if mostRecentNotification? then "after #{mostRecentNotification}" else ""}. Please wait."
$.ajax
url: url
dataType: "jsonp"
success: (result) =>
@log "Found #{result.rows.length} USSD notifications. Filtering for USSD notifications for district: #{district}. Please wait."
_.each result.rows, (row) =>
notification = row.doc
if _.include(shehias, notification.shehia)
if confirm "Accept new case? Facility: #{notification.hf}, Shehia: #{notification.shehia}, Name: #{notification.name}, ID: #{notification.caseid}. You may need to coordinate with another DMSO."
result = new Result
question: "Case Notification"
MalariaCaseID: notification.caseid
FacilityName: notification.hf
Shehia: notification.shehia
Name: notification.name
result.save null,
error: (error) ->
@log "Could not save #{result.toJSON()}: #{JSON.stringify error}"
success: (error) =>
notification.hasCaseNotification = true
$.couch.db(Coconut.config.database_name()).saveDoc notification
@log "Created new case notification #{result.get "MalariaCaseID"} for patient #{result.get "Name"} at #{result.get "FacilityName"}"
doc_ids = [result.get("_id"), notification._id ]
# Sync results back to the
$.couch.replicate(
Coconut.config.database_name(),
Coconut.config.cloud_url_with_credentials(),
error: (error) =>
@log "Error replicating #{doc_ids} back to server: #{JSON.stringify error}"
success: (result) =>
@log "Sent docs: #{doc_ids}"
@save
last_send_result: result
last_send_error: false
last_send_time: new Date().getTime()
, doc_ids: doc_ids
)
else
@log "Case notification #{notification.caseid}, not accepted by #{User.currentUser.username()}"
options.success?()
error: (error) =>
@log "ERROR, could not download USSD notifications: #{JSON.stringify error}"
replicate: (options) ->
$.couch.login
name: Coconut.config.get "local_couchdb_admin_username"
password: Coconut.config.get "local_couchdb_admin_password"
success: ->
$.couch.replicate(
Coconut.config.cloud_url_with_credentials(),
Coconut.config.database_name(),
success: ->
options.success()
error: ->
options.error()
,
options.replicationArguments
)
Coconut.menuView.checkReplicationStatus()
error: ->
console.log "Unable to login as local admin for replicating the design document (main application)"
replicateApplicationDocs: (options) =>
# Updating design_doc, users & forms
$.ajax
dataType: "jsonp"
# version file is missing
url: "#{Coconut.config.cloud_url_with_credentials()}/_design/#{Coconut.config.design_doc_name()}/_view/docIDsForUpdating"
include_docs: false
error: (a,b,error) =>
options.error?(error)
success: (result) =>
doc_ids = _.pluck result.rows, "id"
@log "Updating #{doc_ids.length} docs (users, forms and the design document). Please wait."
@replicate _.extend options,
replicationArguments:
doc_ids: doc_ids