dumps.json

[
    {
        "type": "checkbox_field",
        "index": 0,
        "key": "checked",
        "value": " "
    },
    {
        "type": "checkbox_field",
        "index": 0,
        "key": "title_text",
        "value": "Text to agree"
    },
    {
        "type": "initial_field",
        "index": 1,
        "key": "initial_position",
        "value": "0"
    },
    {
        "type": "initial_field",
        "index": 1,
        "key": "title_text",
        "value": "Please type your name initials"
    },
    {
        "type": "initial_field",
        "index": 1,
        "key": "initial_text",
        "value": ""
    },
    {
        "type": "short_answer_field",
        "index": 2,
        "key": "answer",
        "value": ""
    },
    {
        "type": "short_answer_field",
        "index": 2,
        "key": "title_text",
        "value": "Question text"
    },
    {
        "type": "single_choice_field",
        "index": 3,
        "key": "allow_other_choice",
        "value": "False"
    },
    {
        "type": "single_choice_field",
        "index": 3,
        "key": "title_text",
        "value": "Question text"
    },
    {
        "type": "single_choice_field",
        "index": 3,
        "key": "result_list",
        "value": "list##False&&False&&False"
    },
    {
        "type": "single_choice_field",
        "index": 3,
        "key": "choice_list",
        "value": "list##Default Choice&&More Choice&&More Choice"
    },
    {
        "type": "single_choice_field",
        "index": 3,
        "key": "other_choice",
        "value": ""
    },
    {
        "type": "date_field",
        "index": 4,
        "key": "format",
        "value": "0"
    },
    {
        "type": "date_field",
        "index": 4,
        "key": "month",
        "value": ""
    },
    {
        "type": "date_field",
        "index": 4,
        "key": "title_text",
        "value": "Please fill your birth"
    },
    {
        "type": "date_field",
        "index": 4,
        "key": "year",
        "value": ""
    },
    {
        "type": "date_field",
        "index": 4,
        "key": "day",
        "value": ""
    },
    {
        "type": "age_field",
        "index": 5,
        "key": "title_text",
        "value": "Please fill in your age"
    },
    {
        "type": "age_field",
        "index": 5,
        "key": "age",
        "value": ""
    },
    {
        "type": "name_field",
        "index": 6,
        "key": "format",
        "value": "0"
    },
    {
        "type": "name_field",
        "index": 6,
        "key": "middle_name",
        "value": ""
    },
    {
        "type": "name_field",
        "index": 6,
        "key": "show_middle_name",
        "value": "False"
    },
    {
        "type": "name_field",
        "index": 6,
        "key": "last_name",
        "value": ""
    },
    {
        "type": "name_field",
        "index": 6,
        "key": "title_text",
        "value": "Please fill in your name"
    },
    {
        "type": "name_field",
        "index": 6,
        "key": "first_name",
        "value": ""
    },
    {
        "type": "address_field",
        "index": 7,
        "key": "state",
        "value": ""
    },
    {
        "type": "address_field",
        "index": 7,
        "key": "first_line",
        "value": ""
    },
    {
        "type": "address_field",
        "index": 7,
        "key": "second_line",
        "value": ""
    },
    {
        "type": "address_field",
        "index": 7,
        "key": "title_text",
        "value": "Please fill in your address"
    },
    {
        "type": "address_field",
        "index": 7,
        "key": "country",
        "value": ""
    },
    {
        "type": "address_field",
        "index": 7,
        "key": "city",
        "value": ""
    },
    {
        "type": "address_field",
        "index": 7,
        "key": "show_country",
        "value": "False"
    },
    {
        "type": "address_field",
        "index": 7,
        "key": "zipcode",
        "value": ""
    },
    {
        "type": "age_field",
        "index": 8,
        "key": "title_text",
        "value": "Please fill in your age"
    },
    {
        "type": "age_field",
        "index": 8,
        "key": "age",
        "value": ""
    },
    {
        "type": "short_answer_field",
        "index": 9,
        "key": "answer",
        "value": ""
    },
    {
        "type": "short_answer_field",
        "index": 9,
        "key": "title_text",
        "value": "Question text"
    },
    {
        "type": "single_choice_field",
        "index": 10,
        "key": "allow_other_choice",
        "value": "False"
    },
    {
        "type": "single_choice_field",
        "index": 10,
        "key": "title_text",
        "value": "Question text"
    },
    {
        "type": "single_choice_field",
        "index": 10,
        "key": "result_list",
        "value": "list##False&&False"
    },
    {
        "type": "single_choice_field",
        "index": 10,
        "key": "choice_list",
        "value": "list##Default Choice&&Second Choice"
    },
    {
        "type": "single_choice_field",
        "index": 10,
        "key": "other_choice",
        "value": ""
    },
    {
        "type": "multiple_choice_field",
        "index": 11,
        "key": "allow_other_choice",
        "value": "False"
    },
    {
        "type": "multiple_choice_field",
        "index": 11,
        "key": "title_text",
        "value": "Question text"
    },
    {
        "type": "multiple_choice_field",
        "index": 11,
        "key": "result_list",
        "value": "list##False&&False"
    },
    {
        "type": "multiple_choice_field",
        "index": 11,
        "key": "choice_list",
        "value": "list##Default Choice&&Second Choice"
    },
    {
        "type": "multiple_choice_field",
        "index": 11,
        "key": "other_choice",
        "value": ""
    },
    {
        "type": "container_field",
        "index": 12,
        "key": "fixed",
        "value": "False"
    },
    {
        "type": "container_field",
        "index": 12,
        "key": "max_count",
        "value": "10"
    },
    {
        "type": "container_field",
        "index": 12,
        "key": "fields",
        "value": "list##dict##format::0$$type::name_field$$optional::True$$show_middle_name::False$$last_name::$$title_text::name of minor$$id::0$$first_name::$$middle_name::&&dict##format::0$$type::name_field$$optional::True$$show_middle_name::False$$last_name::$$title_text::name of guardian$$id::1$$first_name::$$middle_name::&&dict##type::signature_field$$optional::True$$id::2$$title_text::signature of guardian$$signature_data::"
    },
    {
        "type": "container_field",
        "index": 12,
        "key": "result_list",
        "value": "list##dict##format::0$$type::name_field$$middle_name::$$show_middle_name::False$$last_name::$$title_text::name of minor$$first_name::&&dict##format::0$$type::name_field$$middle_name::$$show_middle_name::False$$last_name::$$title_text::name of guardian$$first_name::"
    },
    {
        "type": "container_field",
        "index": 12,
        "key": "title",
        "value": "please enter your minors' information"
    },
    {
        "type": "container_field",
        "index": 12,
        "key": "count",
        "value": "1"
    },
    {
        "type": "container_field",
        "index": 12,
        "key": "min_count",
        "value": "0"
    },
    {
        "type": "container_field",
        "index": 12,
        "key": "id",
        "value": "14"
    }
]

origin.json

[
    {
        "title_text": "Text to agree",
        "checked": " ",
        "type": "checkbox_field"
    },
    {
        "initial_text": "",
        "initial_position": "0",
        "title_text": "Please type your name initials",
        "type": "initial_field"
    },
    {
        "title_text": "Question text",
        "answer": "",
        "type": "short_answer_field"
    },
    {
        "choice_list": [
            "Default Choice",
            "More Choice",
            "More Choice"
        ],
        "allow_other_choice": false,
        "result_list": [
            false,
            false,
            false
        ],
        "title_text": "Question text",
        "other_choice": "",
        "type": "single_choice_field"
    },
    {
        "day": "",
        "year": "",
        "format": "0",
        "title_text": "Please fill your birth",
        "month": "",
        "type": "date_field"
    },
    {
        "title_text": "Please fill in your age",
        "age": "",
        "type": "age_field"
    },
    {
        "show_middle_name": false,
        "first_name": "",
        "format": "0",
        "title_text": "Please fill in your name",
        "last_name": "",
        "middle_name": "",
        "type": "name_field"
    },
    {
        "second_line": "",
        "first_line": "",
        "zipcode": "",
        "show_country": false,
        "title_text": "Please fill in your address",
        "state": "",
        "type": "address_field",
        "city": "",
        "country": ""
    },
    {
        "title_text": "Please fill in your age",
        "age": "",
        "type": "age_field"
    },
    {
        "title_text": "Question text",
        "answer": "",
        "type": "short_answer_field"
    },
    {
        "choice_list": [
            "Default Choice",
            "Second Choice"
        ],
        "allow_other_choice": false,
        "result_list": [
            false,
            false
        ],
        "title_text": "Question text",
        "other_choice": "",
        "type": "single_choice_field"
    },
    {
        "choice_list": [
            "Default Choice",
            "Second Choice"
        ],
        "allow_other_choice": false,
        "result_list": [
            false,
            false
        ],
        "title_text": "Question text",
        "other_choice": "",
        "type": "multiple_choice_field"
    },
    {
        "max_count": 10,
        "id": 14,
        "fixed": false,
        "title": "please enter your minors' information",
        "result_list": [
            {
                "show_middle_name": false,
                "first_name": "",
                "format": "0",
                "title_text": "name of minor",
                "last_name": "",
                "middle_name": "",
                "type": "name_field"
            },
            {
                "show_middle_name": false,
                "first_name": "",
                "format": "0",
                "title_text": "name of guardian",
                "last_name": "",
                "middle_name": "",
                "type": "name_field"
            }
        ],
        "min_count": 0,
        "count": 1,
        "fields": [
            {
                "show_middle_name": false,
                "id": 0,
                "first_name": "",
                "format": "0",
                "middle_name": "",
                "title_text": "name of minor",
                "optional": true,
                "last_name": "",
                "type": "name_field"
            },
            {
                "show_middle_name": false,
                "id": 1,
                "first_name": "",
                "format": "0",
                "middle_name": "",
                "title_text": "name of guardian",
                "optional": true,
                "last_name": "",
                "type": "name_field"
            },
            {
                "title_text": "signature of guardian",
                "id": 2,
                "signature_data": "",
                "optional": true,
                "type": "signature_field"
            }
        ],
        "type": "container_field"
    }
]

rule.py

def dump_field_value(value):
    if isinstance(value, list):
        return 'list##' + '&&'.join([dump_field_value(v) for v in value])
    if isinstance(value, dict):
        res = []
        for k, v in value.items():
            res.append('::'.join([k, dump_field_value(v)]))
        return 'dict##'+'$$'.join(res)
    return str(value)


def dump_other_fields(other_fields_all):
    idx = 0
    ret = []
    for field in other_fields_all:
        t = field.get('type')
        for k, v in field.items():
            if k == 'type':
                continue
            v = dump_field_value(v)
            ret.append({'type': t, 'index': idx, 'key': k,
                        'value': v})
        idx += 1
    return ret