Class: Json2sql::UpdateRunner

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

Overview

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

Usage (single row):

sql = Json2sql::UpdateRunner.build(
  "users" => {
    "columns" => { "name" => "Maria", "updated_at" => "2026-04-12" },
    "and"     => { "id" => 42 }
  }
)

Usage (multiple rows — value is an Array):

sql = Json2sql::UpdateRunner.build(
  "settings" => [
    { "columns" => { "value" => "dark" },  "and" => { "key" => "theme" } },
    { "columns" => { "value" => "en" },    "and" => { "key" => "lang" } }
  ]
)

Class Method Summary collapse

Class Method Details

.build(input) ⇒ Object 



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# File 'lib/json2sql/update_runner.rb', line 23

def self.build(input)

  sql = +""

  input = Json2sql.normalize(input)

  relation = WhereRelation.none("")

  input.each do |table, value|

    tbl = table.to_s

    case value
    
    when Hash

      UpdateModel.new(sql, tbl, relation).build(value)

      sql << ";\n"

    when Array

      value.each do |item|

        next unless item.is_a?(Hash)

        UpdateModel.new(sql, tbl, relation).build(item)

        sql << ";\n"
      end
    end
  end

  sql
end