Class: Lagoon::Parser::SchemaParser

Inherits:
Object
  • Object
show all
Defined in:
lib/lagoon/parser/schema_parser.rb

Defined Under Namespace

Classes: ConnectionEntry, TableMetadata

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ SchemaParser

Returns a new instance of SchemaParser.



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# File 'lib/lagoon/parser/schema_parser.rb', line 11

def initialize(options = {})
  @options = options.is_a?(Options) ? options : Options.for(:er, options)
  @analyzer = Lagoon::Analyzer::DatabaseSchemaAnalyzer.new
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/lagoon/parser/schema_parser.rb', line 9

def options
  @options
end

Instance Method Details

#parse ⇒ Object 



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# File 'lib/lagoon/parser/schema_parser.rb', line 16

def parse
  entities = []
  relationships = []
  warnings = []

  load_schema(warnings).each do |table|
    next if excluded?(table)

    analyze_table(table, entities, relationships)
  rescue StandardError => e
    raise if options[:strict]

    warnings << "Failed to analyze table #{table.name}: #{e.message}"
  end

  {
    entities: entities.sort_by { |entity| entity[:name] },
    relationships: relationships.sort_by { |relationship| [relationship[:source], relationship[:target]] },
    warnings: warnings,
    counts: { entities: entities.size, relationships: relationships.size, skipped: warnings.size }
  }
end