Class: GoodData::Model::ProjectCreator

Inherits:
Object
  • Object
show all
Defined in:
lib/gooddata/models/project_creator.rb

Class Method Summary collapse

Class Method Details

.execute_tests(_project, spec) ⇒ Object 



106
107
108
109
110
111
 
# File 'lib/gooddata/models/project_creator.rb', line 106

def execute_tests(_project, spec)
  spec.each do |assert|
    result = GoodData::ReportDefinition.execute(assert[:report])
    fail "Test did not pass. Got #{result.table.inspect}, expected #{assert[:result].inspect}" if result.table != assert[:result]
  end
end

.load(project, spec) ⇒ Object 



97
98
99
100
101
102
103
104
 
# File 'lib/gooddata/models/project_creator.rb', line 97

def load(project, spec)
  if spec.key?(:uploads) # rubocop:disable Style/GuardClause
    spec[:uploads].each do |load|
      schema = GoodData::Model::Schema.new(spec[:datasets].find { |d| d[:name] == load[:dataset] })
      project.upload(load[:source], schema, load[:mode])
    end
  end
end

.migrate(opts = {}) ⇒ Object 



16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
 
# File 'lib/gooddata/models/project_creator.rb', line 16

def migrate(opts = {})
  opts = { client: GoodData.connection }.merge(opts)
  client = opts[:client]
  fail ArgumentError, 'No :client specified' if client.nil?

  spec = opts[:spec] || fail('You need to provide spec for migration')
  bp = ProjectBlueprint.new(spec)
  fail GoodData::ValidationError, "Blueprint is invalid #{bp.validate.inspect}" unless bp.valid?
  spec = bp.to_hash

  project = opts[:project] || client.create_project(opts.merge(:title => opts[:title] || spec[:title], :client => client, :environment => opts[:environment]))

  begin
    migrate_datasets(spec, opts.merge(project: project, client: client))
    load(p, spec)
    migrate_metrics(p, spec[:metrics] || [])
    migrate_reports(p, spec[:reports] || [])
    migrate_dashboards(p, spec[:dashboards] || [])
    execute_tests(p, spec[:assert_tests] || [])
    project
  end
end

.migrate_dashboards(project, spec) ⇒ Object 



83
84
85
86
87
 
# File 'lib/gooddata/models/project_creator.rb', line 83

def migrate_dashboards(project, spec)
  spec.each do |dash|
    project.add_dashboard(dash)
  end
end

.migrate_datasets(spec, opts = {}) ⇒ Object 



39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
 
# File 'lib/gooddata/models/project_creator.rb', line 39

def migrate_datasets(spec, opts = {})
  opts = { client: GoodData.connection }.merge(opts)
  dry_run = opts[:dry_run]
  replacements = opts['maql_replacements'] || opts[:maql_replacements] || {}

  client, project = GoodData.get_client_and_project(opts)

  bp = ProjectBlueprint.new(spec)

  uri = "/gdc/projects/#{project.pid}/model/diff?includeGrain=true"
  result = client.post(uri, bp.to_wire)
  response = client.poll_on_code(result['asyncTask']['link']['poll'])

  chunks = response['projectModelDiff']['updateScripts']
  return [] if chunks.empty?

  maqls = pick_correct_chunks(chunks, opts)
  replaced_maqls = apply_replacements_on_maql(maqls, replacements)

  unless dry_run
    errors = []
    replaced_maqls.each do |replaced_maql_chunks|
      begin
        replaced_maql_chunks['updateScript']['maqlDdlChunks'].each { |chunk| project.execute_maql(chunk) }
      rescue => e
        puts "Error occured when executing MAQL, project: \"#{project.title}\" reason: \"#{e.message}\", chunks: #{replaced_maql_chunks.inspect}"
        errors << e
        next
      end
    end
    if (!errors.empty?) && (errors.length == replaced_maqls.length)
      messages = errors.map { |e| GoodData::Helpers.interpolate_error_messages(e.data['wTaskStatus']['messages']) }
      fail "Unable to migrate LDM, reason(s): \n #{messages.join("\n")}"
    end
  end
  replaced_maqls
end

.migrate_metrics(project, spec) ⇒ Object Also known as: migrate_measures 



89
90
91
92
93
 
# File 'lib/gooddata/models/project_creator.rb', line 89

def migrate_metrics(project, spec)
  spec.each do |metric|
    project.add_metric(metric)
  end
end

.migrate_reports(project, spec) ⇒ Object 



77
78
79
80
81
 
# File 'lib/gooddata/models/project_creator.rb', line 77

def migrate_reports(project, spec)
  spec.each do |report|
    project.add_report(report)
  end
end

.pick_correct_chunks(chunks, opts = {}) ⇒ Object 



113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
 
# File 'lib/gooddata/models/project_creator.rb', line 113

def pick_correct_chunks(chunks, opts = {})
  preference = GoodData::Helpers.symbolize_keys(opts[:update_preference] || {})

  # first is cascadeDrops, second is preserveData
  rules = [
    { priority: 1, cascade_drops: false, preserve_data: true },
    { priority: 2, cascade_drops: false, preserve_data: false },
    { priority: 3, cascade_drops: true, preserve_data: true },
    { priority: 4, cascade_drops: true, preserve_data: false }
  ]

  stuff = chunks.select do |chunk|
    chunk['updateScript']['maqlDdlChunks']
  end

  stuff = stuff.map do |chunk|
    { cascade_drops: chunk['updateScript']['cascadeDrops'], preserve_data: chunk['updateScript']['preserveData'], maql: chunk['updateScript']['maqlDdlChunks'], orig: chunk }
  end

  results_from_api = GoodData::Helpers.join(rules, stuff, [:cascade_drops, :preserve_data], [:cascade_drops, :preserve_data], inner: true).sort_by { |l| l[:priority] } || []

  if preference.empty?
    [results_from_api.first[:orig]]
  else
    results = results_from_api.dup
    preference.each do |k, v|
      results = results.select do |result|
        result[k] == v
      end
    end
    if results.empty?
      available_chunks = results_from_api
                            .map do |result|
                              {
                                cascade_drops: result[:cascade_drops],
                                preserve_data: result[:preserve_data]
                              }
                            end
                            .map(&:to_s)
                            .join(', ')
      fail "Synchronize LDM cannot proceed. Adjust your update_preferences and try again. Available chunks with preference: #{available_chunks}"
    end
    results.map { |result| result[:orig] }
  end
end