Class: Json2sql::InsertRunner

Inherits:
Object
  • Object
show all
Defined in:
lib/json2sql/insert_runner.rb

Overview

Builds one or more INSERT statements from a Hash of table → params.

Usage (single row):

sql = Json2sql::InsertRunner.build(
  "users" => { "columns" => { "name" => "João", "email" => "j@x.com" } }
)

Usage (multiple rows — value is an Array):

sql = Json2sql::InsertRunner.build(
  "tags" => [
    { "columns" => { "name" => "ruby" } },
    { "columns" => { "name" => "rails" } }
  ]
)

Class Method Summary collapse

Class Method Details

.build(input) ⇒ Object 



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# File 'lib/json2sql/insert_runner.rb', line 20

def self.build(input)

  sql = +""

  input = Json2sql.normalize(input)

  input.each do |table, value|
    
    tbl = table.to_s

    case value

    when Hash

      InsertModel.new(sql, tbl).build(value)

      sql << ";\n"

    when Array

      value.each do |item|

        next unless item.is_a?(Hash)

        InsertModel.new(sql, tbl).build(item)

        sql << ";\n"
      end
    end
  end

  sql
end