Class: DaggerRuby::QueryBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/dagger_ruby/query_builder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root_field = nil) ⇒ QueryBuilder

Returns a new instance of QueryBuilder.



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# File 'lib/dagger_ruby/query_builder.rb', line 10

def initialize(root_field = nil)
  @root_field = root_field
  @operation_chain = []
  @variables = {}
end

Instance Attribute Details

#operation_chain ⇒ Object (readonly)

Returns the value of attribute operation_chain.



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# File 'lib/dagger_ruby/query_builder.rb', line 8

def operation_chain
  @operation_chain
end

#root_field ⇒ Object (readonly)

Returns the value of attribute root_field.



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# File 'lib/dagger_ruby/query_builder.rb', line 8

def root_field
  @root_field
end

#variables ⇒ Object (readonly)

Returns the value of attribute variables.



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# File 'lib/dagger_ruby/query_builder.rb', line 8

def variables
  @variables
end

Instance Method Details

#build_query_with_selection(field) ⇒ Object 



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# File 'lib/dagger_ruby/query_builder.rb', line 34

def build_query_with_selection(field)
  query_parts = []

  if @variables.any?
    vars = @variables.map { |name, type| "$#{name}: #{type}" }.join(", ")
    query_parts << "query(#{vars})"
  else
    query_parts << "query"
  end

  if @root_field
    if @operation_chain.empty?
      query_parts << "{ #{@root_field} { #{field} } }"
    else
      operations_str = build_operations_chain_with_selection(field)
      query_parts << "{ #{@root_field} { #{operations_str} } }"
    end
  elsif @operation_chain.any?
    operations_str = build_operations_chain_with_selection(field)
    query_parts << "{ #{operations_str} }"
  else
    query_parts << "{ #{field} }"
  end

  query_parts.join(" ")
end

#chain_operation(field, args = {}) ⇒ Object 



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# File 'lib/dagger_ruby/query_builder.rb', line 16

def chain_operation(field, args = {})
  new_query = QueryBuilder.new(@root_field)
  new_query.instance_variable_set(:@operation_chain, @operation_chain + [{ field: field, args: args }])
  new_query.instance_variable_set(:@variables, @variables.dup)
  new_query
end

#load_from_id(id) ⇒ Object 



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# File 'lib/dagger_ruby/query_builder.rb', line 23

def load_from_id(id)
  chain_operation("loadFromId", { "id" => id })
end

#variable(name, type) ⇒ Object 



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# File 'lib/dagger_ruby/query_builder.rb', line 27

def variable(name, type)
  new_query = QueryBuilder.new(@root_field)
  new_query.instance_variable_set(:@operation_chain, @operation_chain.dup)
  new_query.instance_variable_set(:@variables, @variables.merge(name => type))
  new_query
end