def cand(*conditions):
def build(attrs):
return ' AND '.join(
[f'({cond.expression(attrs)})' for cond in conditions])
attributes = merge([cond.attributes for cond in conditions])
references = flatten([cond.references for cond in conditions])
return Condition(build, attributes, references=references)
def between(value_a, value_b):
value_a_key = f'{name}_a'
value_b_key = f'{name}_b'
def build(attrs):
alias = get_safe_alias(name)
value_a_attr = find_attr(attrs, original_name=value_a_key)
value_b_attr = find_attr(attrs, original_name=value_b_key)
return f'{alias} BETWEEN {value_a_attr.key} AND {value_b_attr.key}'
return Condition(build, {
value_a_key: value_a,
value_b_key: value_b
},
references=[name])
def begins_with(value):
def build(attrs):
a = find_attr(attrs)
return f'begins_with({a.alias}, {a.key})'
return Condition(build, {name: value})
def greater_than_or_equal(value):
def build(attrs):
a = find_attr(attrs)
return f'{a.alias} >= {a.key}'
return Condition(build, {name: value})
def less_than(value):
def build(attrs):
a = find_attr(attrs)
return f'{a.alias} < {a.key}'
return Condition(build, {name: value})
def equals(value):
def build(attrs):
a = find_attr(attrs)
return f'{a.alias} = {a.key}'
return Condition(build, {name: value})