Mixing
For loop not working in nested block using Jinja 2
I have a flask app in which my parent block (using jinja 2) has a for-loop and I would like to make use of the parent for-loop in my meta block which is inside the parent block. The meta block is not recognizing the i variable and throws an error which says " UndefinedError: 'i' is undefined". How do I make use of that variable in my meta block.
{% block content %}
{% for i in airlines %}
{% block meta %}
<meta property="og:image" content="{{ i.ImageURL }}" />
{% endblock meta %}
{% endfor %}
{% endblock content %}
Secondly when I code in the below manner then I am getting the result using scoped but when I am trying to access the element for example "{{i.ImageURL}}" then it's not working.
{% block metaimage scoped %}
{{ i }}
{% endblock %}
python-2.7 flask jinja2
asked Jan 2 at 5:49
fear_matrixfear_matrix
2,04563351
add a comment |
I have a flask app in which my parent block (using jinja 2) has a for-loop and I would like to make use of the parent for-loop in my meta block which is inside the parent block. The meta block is not recognizing the i variable and throws an error which says " UndefinedError: 'i' is undefined". How do I make use of that variable in my meta block.
{% block content %}
{% for i in airlines %}
{% block meta %}
<meta property="og:image" content="{{ i.ImageURL }}" />
{% endblock meta %}
{% endfor %}
{% endblock content %}
Secondly when I code in the below manner then I am getting the result using scoped but when I am trying to access the element for example "{{i.ImageURL}}" then it's not working.
{% block metaimage scoped %}
{{ i }}
{% endblock %}
python-2.7 flask jinja2
asked Jan 2 at 5:49
fear_matrixfear_matrix
2,04563351
Does it work when you remove the {% block meta %} + {% endblock meta %} . Normally these are used as placeholder, and I cannot why you are using them here? I tested your code by passing a dictionary and only worked as soon as I removed the meta block placeholder. Question: what kind of object is airlines exactly?
– gittert
Jan 2 at 8:25
add a comment |
I have a flask app in which my parent block (using jinja 2) has a for-loop and I would like to make use of the parent for-loop in my meta block which is inside the parent block. The meta block is not recognizing the i variable and throws an error which says " UndefinedError: 'i' is undefined". How do I make use of that variable in my meta block.
{% block content %}
{% for i in airlines %}
{% block meta %}
<meta property="og:image" content="{{ i.ImageURL }}" />
{% endblock meta %}
{% endfor %}
{% endblock content %}
Secondly when I code in the below manner then I am getting the result using scoped but when I am trying to access the element for example "{{i.ImageURL}}" then it's not working.
{% block metaimage scoped %}
{{ i }}
{% endblock %}
python-2.7 flask jinja2
asked Jan 2 at 5:49
fear_matrixfear_matrix
2,04563351
I have a flask app in which my parent block (using jinja 2) has a for-loop and I would like to make use of the parent for-loop in my meta block which is inside the parent block. The meta block is not recognizing the i variable and throws an error which says " UndefinedError: 'i' is undefined". How do I make use of that variable in my meta block.
{% block content %}
{% for i in airlines %}
{% block meta %}
<meta property="og:image" content="{{ i.ImageURL }}" />
{% endblock meta %}
{% endfor %}
{% endblock content %}
Secondly when I code in the below manner then I am getting the result using scoped but when I am trying to access the element for example "{{i.ImageURL}}" then it's not working.
{% block metaimage scoped %}
{{ i }}
{% endblock %}
python-2.7 flask jinja2
python-2.7 flask jinja2
asked Jan 2 at 5:49
fear_matrixfear_matrix
2,04563351
asked Jan 2 at 5:49
fear_matrixfear_matrix
2,04563351
edited Jan 2 at 7:31
fear_matrix
asked Jan 2 at 5:49
fear_matrixfear_matrix
2,04563351
asked Jan 2 at 5:49
fear_matrixfear_matrix
2,04563351
asked Jan 2 at 5:49
fear_matrixfear_matrix
2,04563351
2,04563351
Does it work when you remove the {% block meta %} + {% endblock meta %} . Normally these are used as placeholder, and I cannot why you are using them here? I tested your code by passing a dictionary and only worked as soon as I removed the meta block placeholder. Question: what kind of object is airlines exactly?
– gittert
Jan 2 at 8:25
add a comment |
Does it work when you remove the {% block meta %} + {% endblock meta %} . Normally these are used as placeholder, and I cannot why you are using them here? I tested your code by passing a dictionary and only worked as soon as I removed the meta block placeholder. Question: what kind of object is airlines exactly?
– gittert
Jan 2 at 8:25
Does it work when you remove the {% block meta %} + {% endblock meta %} . Normally these are used as placeholder, and I cannot why you are using them here? I tested your code by passing a dictionary and only worked as soon as I removed the meta block placeholder. Question: what kind of object is airlines exactly?
– gittert
Jan 2 at 8:25
Does it work when you remove the {% block meta %} + {% endblock meta %} . Normally these are used as placeholder, and I cannot why you are using them here? I tested your code by passing a dictionary and only worked as soon as I removed the meta block placeholder. Question: what kind of object is airlines exactly?
– gittert
Jan 2 at 8:25
add a comment |
1 Answer
1
active
oldest
votes
This should work:
{% for i in airlines %}
{% block content scoped %}
{% block meta %}
<meta property="og:image" content="{{ i.ImageURL }}" />
{% endblock meta %}
{% endblock content %}
{% endfor %}
answered Jan 29 at 17:43
orbvekorbvek
12
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
This should work:
{% for i in airlines %}
{% block content scoped %}
{% block meta %}
<meta property="og:image" content="{{ i.ImageURL }}" />
{% endblock meta %}
{% endblock content %}
{% endfor %}
answered Jan 29 at 17:43
orbvekorbvek
12
add a comment |
This should work:
{% for i in airlines %}
{% block content scoped %}
{% block meta %}
<meta property="og:image" content="{{ i.ImageURL }}" />
{% endblock meta %}
{% endblock content %}
{% endfor %}
answered Jan 29 at 17:43
orbvekorbvek
12
add a comment |
This should work:
{% for i in airlines %}
{% block content scoped %}
{% block meta %}
<meta property="og:image" content="{{ i.ImageURL }}" />
{% endblock meta %}
{% endblock content %}
{% endfor %}
answered Jan 29 at 17:43
orbvekorbvek
12
This should work:
{% for i in airlines %}
{% block content scoped %}
{% block meta %}
<meta property="og:image" content="{{ i.ImageURL }}" />
{% endblock meta %}
{% endblock content %}
{% endfor %}
answered Jan 29 at 17:43
orbvekorbvek
12
answered Jan 29 at 17:43
orbvekorbvek
12
answered Jan 29 at 17:43
orbvekorbvek
12
answered Jan 29 at 17:43
orbvekorbvek
12
12
add a comment |
add a comment |
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Does it work when you remove the {% block meta %} + {% endblock meta %} . Normally these are used as placeholder, and I cannot why you are using them here? I tested your code by passing a dictionary and only worked as soon as I removed the meta block placeholder. Question: what kind of object is airlines exactly?
– gittert
Jan 2 at 8:25