Class: DBD4::Datatype

Inherits:
Object
  • Object
show all
Defined in:
lib/dbd4/dbd4_model_file.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(datatype, column) ⇒ Datatype

Returns a new instance of Datatype.



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# File 'lib/dbd4/dbd4_model_file.rb', line 363

def initialize(datatype, column)
  @column = column
  @params = Hash.new()
  @id = datatype.attributes['idDatatype']
  @param_values = datatype.attributes['DatatypeParams'].delete("()").split(/[,]/)
  @params = Hash.new()
  @type = nil
  @notnull = datatype.attributes['NotNull']
  @non_standard_type = false
end

Instance Attribute Details

#column ⇒ Object (readonly)

Returns the value of attribute column.



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# File 'lib/dbd4/dbd4_model_file.rb', line 361

def column
  @column
end

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/dbd4/dbd4_model_file.rb', line 361

def id
  @id
end

#non_standard_type ⇒ Object (readonly)

Returns the value of attribute non_standard_type.



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# File 'lib/dbd4/dbd4_model_file.rb', line 361

def non_standard_type
  @non_standard_type
end

#notnull ⇒ Object (readonly)

Returns the value of attribute notnull.



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# File 'lib/dbd4/dbd4_model_file.rb', line 361

def notnull
  @notnull
end

#params ⇒ Object (readonly)

Returns the value of attribute params.



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# File 'lib/dbd4/dbd4_model_file.rb', line 361

def params
  @params
end

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/dbd4/dbd4_model_file.rb', line 361

def type
  @type
end

Instance Method Details

#resolve(allObjects) ⇒ Object 



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# File 'lib/dbd4/dbd4_model_file.rb', line 374

def resolve(allObjects)
  dd = allObjects[:datatypeDefinitions][@id] 
  # Create a Hash from 2 arrays by zipping them together
  @params = Hash[*dd.zip(@param_values).flatten] if ! @param_values.empty?
  @type = dd.type
end

#to_str ⇒ Object 



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# File 'lib/dbd4/dbd4_model_file.rb', line 443

def to_str
  "Datatype(type=#{type}, non_standard=#{non_standard_type}, notnull=#{notnull}" + params.keys.collect { |k| ", #{k}=#{params[k]}" }.join("") + ")"
end

#validate(messages) ⇒ Object 



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# File 'lib/dbd4/dbd4_model_file.rb', line 381

def validate(messages)
  case @type
    when 'BOOL'
      if @params.size != 0
        messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} cannot take any parameters"
        @non_standard_type = true
      end
    when 'TEXT'
      if @params.size != 0
        messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} cannot take any parameters"
        @non_standard_type = true
      end
    when 'VARCHAR'
      @params.each_key do |k|
        if k != 'length'
          messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} can only take length as parameter"
          @non_standard_type = true
        end
      end
    when 'FLOAT'
      if @params.size != 0
        messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} cannot take any parameters"
        @non_standard_type = true
      end
    when 'DATETIME'
      if @params.size != 0
        messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} cannot take any parameters"
        @non_standard_type = true
      end
    when 'DATE'
      if @params.size != 0
        messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} cannot take any parameters"
        @non_standard_type = true
      end
    when 'INTEGER'
      @params.each_key do |k|
        if k != 'length'
          messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} can only take length as parameter"
          @non_standard_type = true
        end
      end
    when 'DECIMAL'
      if @params.size != 2 or not @params['length'] or not @params['decimals']
        messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} takes 2 params, length and decimals"
        @non_standard_type = true
      end
    when 'BINARY'
      if @params.size != 0
        messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} does not take any parameters"
        @non_standard_type = true
      end
     when 'BLOB'
      if @params.size != 0
        messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} does not take any parameters"
        @non_standard_type = true
      end
    else
     messages[:warnings] << "Warning : table #{column.table.name} column #{column.name}, #{type} is not a valid type"
     @non_standard_type = true
  end
end