core.render.json.default

Module Contents

Classes

CustomJsonEncoder

This custom JSON-Encoder for this json-render ensures that translations are evaluated and can be dumped.

DefaultRender

class core.render.json.default.CustomJsonEncoder(*, skipkeys=False, ensure_ascii=True, check_circular=True, allow_nan=True, sort_keys=False, indent=None, separators=None, default=None)

Bases: json.JSONEncoder

This custom JSON-Encoder for this json-render ensures that translations are evaluated and can be dumped.

Constructor for JSONEncoder, with sensible defaults.

If skipkeys is false, then it is a TypeError to attempt encoding of keys that are not str, int, float or None. If skipkeys is True, such items are simply skipped.

If ensure_ascii is true, the output is guaranteed to be str objects with all incoming non-ASCII characters escaped. If ensure_ascii is false, the output can contain non-ASCII characters.

If check_circular is true, then lists, dicts, and custom encoded objects will be checked for circular references during encoding to prevent an infinite recursion (which would cause an RecursionError). Otherwise, no such check takes place.

If allow_nan is true, then NaN, Infinity, and -Infinity will be encoded as such. This behavior is not JSON specification compliant, but is consistent with most JavaScript based encoders and decoders. Otherwise, it will be a ValueError to encode such floats.

If sort_keys is true, then the output of dictionaries will be sorted by key; this is useful for regression tests to ensure that JSON serializations can be compared on a day-to-day basis.

If indent is a non-negative integer, then JSON array elements and object members will be pretty-printed with that indent level. An indent level of 0 will only insert newlines. None is the most compact representation.

If specified, separators should be an (item_separator, key_separator) tuple. The default is (’, ‘, ‘: ‘) if indent is None and (‘,’, ‘: ‘) otherwise. To get the most compact JSON representation, you should specify (‘,’, ‘:’) to eliminate whitespace.

If specified, default is a function that gets called for objects that can’t otherwise be serialized. It should return a JSON encodable version of the object or raise a TypeError.

default(o)

Implement this method in a subclass such that it returns a serializable object for o, or calls the base implementation (to raise a TypeError).

For example, to support arbitrary iterators, you could implement default like this:

def default(self, o):
    try:
        iterable = iter(o)
    except TypeError:
        pass
    else:
        return list(iterable)
    # Let the base class default method raise the TypeError
    return JSONEncoder.default(self, o)
Parameters:

o (Any) –

Return type:

Any

class core.render.json.default.DefaultRender(parent=None, *args, **kwargs)

Bases: object

kind = 'json'
static render_structure(structure)

Performs structure rewriting according to VIUR2/3 compatibility flags. # fixme: Remove this entire function with VIUR4

Parameters:

structure (dict) –

renderSingleBoneValue(value, bone, skel, key)

Renders the value of a bone.

It can be overridden and super-called from a custom renderer.

Parameters:

  • bone (Any bone that inherits from server.bones.base.BaseBone.) – The bone which value should be rendered.

  • value (Any) –

  • skel (viur.core.skeleton.SkeletonInstance) –

Returns:

A dict containing the rendered attributes.

Return type:

dict | str | None

renderBoneValue(bone, skel, key)
Parameters:

  • bone (viur.core.bones.BaseBone) –

  • skel (viur.core.skeleton.SkeletonInstance) –

  • key (str) –

Return type:

list | dict | None

renderSkelValues(skel, injectDownloadURL=False)

Prepares values of one viur.core.skeleton.Skeleton or a list of skeletons for output.

Parameters:

  • skel (viur.core.skeleton.SkeletonInstance) – Skeleton which contents will be processed.

  • injectDownloadURL (bool) –

Return type:

Optional[dict]

renderEntry(skel, actionName, params=None)
Parameters:

skel (viur.core.skeleton.SkeletonInstance) –

view(skel, action='view', params=None, **kwargs)
Parameters:

  • skel (viur.core.skeleton.SkeletonInstance) –

  • action (str) –

list(skellist, action='list', params=None, **kwargs)
Parameters:

action (str) –

add(skel, action='add', params=None, **kwargs)
Parameters:

  • skel (viur.core.skeleton.SkeletonInstance) –

  • action (str) –

edit(skel, action='edit', params=None, **kwargs)
Parameters:

  • skel (viur.core.skeleton.SkeletonInstance) –

  • action (str) –

editSuccess(skel, action='editSuccess', params=None, **kwargs)
Parameters:

  • skel (viur.core.skeleton.SkeletonInstance) –

  • action (str) –

addSuccess(skel, action='addSuccess', params=None, **kwargs)
Parameters:

  • skel (viur.core.skeleton.SkeletonInstance) –

  • action (str) –

deleteSuccess(skel, params=None, *args, **kwargs)
Parameters:

skel (viur.core.skeleton.SkeletonInstance) –

listRootNodes(rootNodes, *args, **kwargs)