Module: Piola::Sql

Defined in:
lib/piola/sql.rb

Instance Method Summary collapse

Instance Method Details

#searchify(*args) ⇒ Object

Converts a string to a sql search query



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# File 'lib/piola/sql.rb', line 42

def searchify(*args)
  fields  = args.first
  options = args.extract_options!

  operator = options[:operator] || :and
  operator = operator.to_s.upcase

  str = self
  str = str.gsub(/ +/, ' ')
  str = str.gsub("'", '')
  str = str.gsub("\\", '')
  str = str.gsub("%", '')
  str = str.gsub("/", ' ')
  str = str.gsub(":", ' ')
  str = str.gsub("=", ' ')
  str = str.gsub("?", ' ')
  str = str.strip

  return '0' unless str.present?

  exact_words         = []
  exacts              = []
  regulars            = []
  exact_word_excludes = []
  exact_excludes      = []
  excludes            = []

  # Check for exact excludes
  exact_excludes_matches = str.scan(/-"(.*?)"/)

  exact_excludes_matches.each do |match|
    match = match.first

    # Remove match from main string
    str = str.gsub(/-"#{match}"/, '').strip

    exact_excludes << match.strip
  end

  # Check for exact word excludes
  exact_word_excludes_matches = str.scan(/-`(.*?)`/)

  exact_word_excludes_matches.each do |match|
    match = match.first

    # Remove match from main string
    str = str.gsub(/-`#{match}`/, '').strip

    exact_word_excludes << match.strip
  end

  # Check for exact words
  exact_word_matches = str.scan(/`(.*?)`/)

  exact_word_matches.each do |match|
    match = match.first

    # Remove match from main string
    str = str.gsub(/`#{match}`/, '').strip

    exact_words << match.strip
  end

  # Check for exact searches
  exact_matches = str.scan(/"(.*?)"/)

  exact_matches.each do |match|
    match = match.first

    # Remove match from main string
    str = str.gsub(/"#{match}"/, '').strip

    exacts << match.strip
  end

  # Check for excludes with spaces after them
  exclude_matches = str.scan(/-.+? /)

  exclude_matches.each do |match|
    match.strip!
    match = match.gsub(/-/, '')

    # Remove match from main string
    str = str.gsub(/-#{match}/, '').strip

    excludes << match.strip
  end

  # Check for excludes at the end of the string
  exclude_matches = str.scan(/-.+?$/)

  exclude_matches.each do |match|
    match.strip!
    match = match.gsub(/-/, '')

    # Remove match from main string
    str = str.gsub(/-#{match}/, '').strip

    excludes << match.strip
  end

  # Check for regular searches
  regulars = str.to_arr

  # Build the query
  query   = []
  rows    = []
  cells   = []

  # Includes
  query_includes = ""

  if exact_words.any? || exacts.any? || regulars.any?
    fields.each do |field|
      cells = []

      exact_words.each do |matcher|
        cells << "(#{field} LIKE \"% #{matcher.remove_quotes} %\" OR #{field} LIKE \"% #{matcher.remove_quotes}.%\" OR #{field} LIKE \"% #{matcher.remove_quotes},%\")"
      end

      [exacts, regulars].each do |matchers|
        matchers.each do |matcher|
          cells << "#{field} LIKE \"%#{matcher.remove_quotes}%\""
        end
      end

      rows << cells.join(" #{operator} ")
    end

    query_includes = rows.join(" OR ")
    query << "(#{query_includes})"
  end

  # Excludes
  query_excludes = ""

  if exact_word_excludes.any? || exact_excludes.any? || excludes.any?
    rows  = []
    cells = []

    fields.each do |field|
      cells = []

      exact_word_excludes.each do |matcher|
        cells << "(#{field} NOT LIKE \"% #{matcher.remove_quotes} %\" OR #{field} NOT LIKE \"% #{matcher.remove_quotes}.%\" OR #{field} NOT LIKE \"% #{matcher.remove_quotes},%\")"
      end

      [exact_excludes, excludes].each do |matchers|
        matchers.each do |matcher|
          cells << "#{field} NOT LIKE \"%#{matcher.remove_quotes}%\""
        end
      end

      rows << cells.join(" #{operator} ")
    end

    query_excludes = rows.join(" AND ")
    query << "(#{query_excludes})"
  end

  return query.join(" AND ") if query.any?
  return '0'
end

#sql_search(fields) ⇒ Object

Converts a string to a sql search string



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# File 'lib/piola/sql.rb', line 9

def sql_search(fields)
  str = self
  str = str.gsub("'", '')
  str = str.gsub('"', '')
  str = str.gsub("\\", '')
  str = str.gsub("%", '')
  str = str.gsub("/", ' ')
  str = str.gsub(":", ' ')
  str = str.gsub("=", ' ')
  str = str.gsub("?", ' ')

  if str.strip.present?
    arr   = str.to_arr
    rows  = []
    cells = []

    fields.each do |field|
      cells = []

      arr.each do |a|
        cells << "(#{field} LIKE \"%#{a}%\")"
      end

      rows << "(" + cells.join(" AND ") + ")"
    end

    return rows.join(" OR ")
  else
    return '0'
  end
end