Fix template rendering: support custom filters and Jinja2 inline dicts#5
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jeffreyaven merged 1 commit intomainfrom Feb 12, 2026
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Two issues prevented real-world IQL templates from rendering:
1. render_queries() used Tera::one_off which doesn't have custom filters
registered (generate_patch_document, from_json, sql_list, etc).
Switched to render_with_filters() which creates a Tera instance with
all custom filters.
2. Tera doesn't support Jinja2 inline dict literals like:
{{ { "Key": var, "Key2": var2 } | generate_patch_document }}
Added preprocess_inline_dicts() which parses these expressions,
constructs the JSON object from context variables, and rewrites them
as {{ __inline_dict_N | filter_name }} with the JSON injected into
context.
Also updated generate_patch_document filter to accept both JSON objects
and JSON strings as input.
https://claude.ai/code/session_01ShAyjRLWBYC3tPsusCxggv
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Two issues prevented real-world IQL templates from rendering:
render_queries() used Tera::one_off which doesn't have custom filters registered (generate_patch_document, from_json, sql_list, etc). Switched to render_with_filters() which creates a Tera instance with all custom filters.
Tera doesn't support Jinja2 inline dict literals like: {{ { "Key": var, "Key2": var2 } | generate_patch_document }} Added preprocess_inline_dicts() which parses these expressions, constructs the JSON object from context variables, and rewrites them as {{ __inline_dict_N | filter_name }} with the JSON injected into context.
Also updated generate_patch_document filter to accept both JSON objects and JSON strings as input.
https://claude.ai/code/session_01ShAyjRLWBYC3tPsusCxggv